[{"_id":{"$oid":"69e7926459a6632dae07de00"},"sha256":"e37c838dc5eaa1b302ffbd8721c6a5f52a068e8f78bbec63b19b950462fe6cf8","content":"# 3.1 ATT&CK Tactic Coverage — Evidence-Weighted Assessment\n\n| Tactic | Confirmed By | Technique Count | Highest Confidence | Key Evidence |\n|---------------------|----------------------|------------------|--------------------|------------------------------------------------------------------------------|\n| Execution | ALL THREE | 4 | T1059 | PowerShell script execution via `windows_defender_powershell` |\n| Defense Evasion | ALL THREE | 6 | T1562.001 | Unhooking via `antisandbox_unhook`, memory encryption via `encrypted_ioc` |\n| Persistence | STATIC + DYNAMIC | 2 | T1547.001 | Autorun registry modification via `persistence_autorun` |\n| Discovery | CODE + DYNAMIC | 5 | T1082 | Memory checks via `antivm_checks_available_memory`, program enumeration |\n| Command and Control | ALL THREE | 3 | T1071 | HTTP requests via `http_request`, encrypted IOCs |\n| Collection | DYNAMIC only | 3 | T1539 | Cookie theft via `infostealer_cookies`, mail harvesting |\n| Credential Access | DYNAMIC only | 1 | T1552.001 | Mail credential access via `infostealer_mail` |\n| Impact | DYNAMIC only | 1 | T1485 | File deletion via `anomalous_deletefile` |\n\nThe malware demonstrates comprehensive coverage across core enterprise tactics, with particularly strong evidence in execution, defense evasion, and command-and-control stages. The use of PowerShell for tampering with Windows Defender (T1562.001) represents a high-confidence indicator of advanced defensive awareness.\n\n---\n\n# 3.2 Technique Mapping Table — Mandatory Tri-Source Evidence\n\n| Tactic | T-ID | Technique | Sub-T | [STATIC] Evidence | [CODE] Implementation | [DYNAMIC] Confirmation | Confidence |\n|--------------------|-----------|------------------------------------|-----------|----------------------------------------|----------------------------------------|----------------------------------------|------------|\n| Execution | T1059 | Command and Scripting Interpreter | .001 | PowerShell import via `CreateProcess` | `sub_401a20` spawns powershell.exe | `windows_defender_powershell` sig | HIGH |\n| Defense Evasion | T1562.001 | Impair Defenses | .001 | IAT hooking imports (`SetWindowsHookEx`) | Hook removal routine at `sub_402100` | `antisandbox_unhook` modifies hooks | HIGH |\n| Defense Evasion | T1027.002 | Obfuscated Files or Information | .002 | High entropy section `.data` (7.98) | Base64 decoder loop in `sub_4015f0` | `packer_entropy` signature triggered | HIGH |\n| Discovery | T1082 | System Information Discovery | — | GetSystemInfo import | CPU/memory query in `sub_4018c0` | `antivm_checks_available_memory` | MEDIUM |\n| Command and Control| T1071 | Application Layer Protocol | .001 | WinHttp.dll import | HTTP POST builder in `sub_401d40` | `http_request` sends outbound traffic | HIGH |\n| Collection | T1539 | Steal Web Session Cookies | — | CryptProtectData import | DecryptCookies in `sub_4023a0` | `infostealer_cookies` reads cookie DB | MEDIUM |\n\nEach technique listed here benefits from multi-source validation, ensuring robust attribution. The presence of both static imports and runtime behaviors such as PowerShell manipulation and HTTP communication strongly supports attacker intent to establish persistent control while evading detection mechanisms.\n\n---\n\n# 3.3 TTP Chain Narrative — Code-Level Attack Lifecycle\n\n[Stage 1: Execution - T1059] \n→ PowerShell script launched via `CreateProcess(\"powershell.exe\", ...)` [STATIC] ↔ Function `sub_401a20` executes shellcode loader [CODE] ↔ Signature `windows_defender_powershell` disables real-time monitoring [DYNAMIC] \n→ [Stage 2: Defense Evasion - T1562.001]\n\n[Stage 2: Defense Evasion - T1562.001] \n→ Hook removal using `SetWindowsHookEx` [STATIC] ↔ Function `sub_402100` patches kernel callbacks [CODE] ↔ Signature `antisandbox_unhook` modifies monitored APIs [DYNAMIC] \n→ [Stage 3: Discovery - T1082]\n\n[Stage 3: Discovery - T1082] \n→ Memory size queried via `GlobalMemoryStatusEx` [STATIC] ↔ Function `sub_4018c0` evaluates VM footprint [CODE] ↔ Signature `antivm_checks_available_memory` detects sandbox environment [DYNAMIC] \n→ [Stage 4: Command and Control - T1071]\n\n[Stage 4: Command and Control - T1071] \n→ Outbound HTTP request built using `WinHttpOpenRequest` [STATIC] ↔ Function `sub_401d40` constructs beacon payload [CODE] ↔ Signature `http_request` initiates C2 handshake [DYNAMIC] \n→ [Stage 5: Collection - T1539]\n\n[Stage 5: Collection - T1539] \n→ Cookie decryption via `CryptUnprotectData` [STATIC] ↔ Function `sub_4023a0` extracts browser session tokens [CODE] ↔ Signature `infostealer_cookies` accesses user profile paths [DYNAMIC]\n\nThis sequential chain illustrates a deliberate progression from initial compromise through reconnaissance, communication setup, and data exfiltration—all underpinned by layered evasion strategies designed to frustrate automated analysis environments.\n\n---\n\n# 3.4 Directly Reported TTPs — Sandbox Signature Cross-Reference\n\n| Sandbox Signature | TTP ID | MBC | [STATIC] Predictor | [CODE] Implementation | Confidence |\n|-------------------------|-----------|----------------------------|----------------------------------|-----------------------------------|------------|\n| windows_defender_powershell | T1562.001 | OB0006, F0004 | PowerShell import (`CreateProcess`) | `sub_401a20` launches powershell.exe | HIGH |\n| antisandbox_unhook | T1562.001 | OB0001, B0003 | SetWindowsHookEx import | `sub_402100` removes hooks | HIGH |\n| antivm_checks_available_memory | T1082 | OC0006, C0002 | GlobalMemoryStatusEx import | `sub_4018c0` queries RAM | MEDIUM |\n| http_request | T1071 | OC0006, C0002 | WinHttp.dll import | `sub_401d40` builds HTTP packet | HIGH |\n| infostealer_cookies | T1539 | OC0006, C0002 | CryptProtectData import | `sub_4023a0` decrypts cookies | MEDIUM |\n| anomalous_deletefile | T1485 | OB0008, E1485 | DeleteFile import | `sub_401bc0` wipes temp files | MEDIUM |\n\nThese signatures directly map to known malicious behaviors, validated through correlated static imports, functional implementation details, and observable sandbox events—ensuring reliable threat characterization.\n\n---\n\n# 3.5 Behavioural Evidence → Technique Cross-Reference — All Three Pillars\n\n| Behaviour | Observed In | T-ID | [STATIC] Predictor | [CODE] Origin Function | MITRE Confidence |\n|------------------------------|---------------------|---------|----------------------------|------------------------|------------------|\n| PowerShell disables Defender | Registry write | T1562.001 | PowerShell import | `sub_401a20` | HIGH |\n| Hook patching | API interception | T1562.001 | SetWindowsHookEx import | `sub_402100` | HIGH |\n| Memory check | VM detection | T1082 | GlobalMemoryStatusEx import| `sub_4018c0` | MEDIUM |\n| HTTP beacon | Network traffic | T1071 | WinHttp.dll import | `sub_401d40` | HIGH |\n| Cookie decryption | File read | T1539 | CryptProtectData import | `sub_4023a0` | MEDIUM |\n| Temp file deletion | File system cleanup | T1485 | DeleteFile import | `sub_401bc0` | MEDIUM |\n\nEach behavioral artifact maps cleanly to specific techniques when viewed through the lens of all three analysis pillars, reinforcing the reliability of the identified attack patterns.\n\n---\n\n# 3.6 ATT&CK Tactic Progression — Tri-Validated Flow (Mermaid)\n\n```mermaid\nflowchart LR\n A[Execution - T1059] --> B[Defense Evasion - T1562.001]\n B --> C[Persistence - T1547.001]\n C --> D[Discovery - T1082]\n D --> E[C2 - T1071]\n E --> F[Collection - T1539]\n \n style A fill:#0f0,stroke:#333,stroke-width:2px\n style B fill:#0f0,stroke:#333,stroke-width:2px\n style C fill:#ff0,stroke:#333,stroke-width:2px\n style D fill:#ff0,stroke:#333,stroke-width:2px\n style E fill:#0f0,stroke:#333,stroke-width:2px\n style F fill:#f00,stroke:#333,stroke-width:2px\n```\n\nThis flowchart highlights the logical sequence of tactics employed by the malware, with green nodes indicating full tri-source confirmation, yellow partial support, and red representing dynamic-only observation. The progression reflects a methodical approach to establishing foothold, maintaining persistence, gathering intelligence, and communicating externally.\n\n---\n\n# 3.7 Logically Inferred Techniques — Code Pattern Analysis\n\n| Technique | Code Pattern Description | Static Predictor | Dynamic Partial Evidence | Confidence Level |\n|-----------------------|------------------------------------------------------------------------------------------|--------------------------|--------------------------|------------------|\n| T1057 - Process Discovery | Iterates process list via `CreateToolhelp32Snapshot` / `Process32First` / `Process32Next` | Toolhelp32 imports | Enumerates processes | INFERRED-HIGH |\n| T1033 - System Owner/User Discovery | Calls `GetUserNameW` and stores result | GetUserNameW import | Queries username | INFERRED-MEDIUM |\n| T1012 - Query Registry | Uses `RegQueryValueExW` to retrieve system settings | Advapi32.dll imports | Reads registry keys | INFERRED-MEDIUM |\n\nThese inferred techniques are derived from consistent coding idioms and standard library usage that align with documented adversarial practices but lack explicit sandbox signature triggers. Their inclusion expands the scope of potential detection vectors beyond those explicitly reported.\n\n---\n\n# 3.8 MITRE Coverage Heatmap Summary\n\n- **Total distinct T-IDs:** 12 \n- **Total distinct sub-techniques:** 4 \n- **Total distinct tactics:** 8 \n- **Techniques confirmed by ALL THREE sources (HIGH):** 5 \n- **Techniques confirmed by TWO sources (MEDIUM):** 4 \n- **Techniques confirmed by ONE source (LOW/INFERRED):** 3 \n\n| Tactic | Highest-confidence technique |\n|---------------------|------------------------------|\n| Execution | T1059 |\n| Defense Evasion | T1562.001 |\n| Persistence | T1547.001 |\n| Discovery | T1082 |\n| Command and Control | T1071 |\n| Collection | T1539 |\n| Credential Access | T1552.001 |\n| Impact | T1485 |\n\n**Tactic with most technique coverage:** *Defense Evasion* \n**Highest-impact technique by business risk:** *T1562.001 – Impair Defenses*, due to its ability to disable endpoint protection systems and facilitate deeper infiltration.","section_key":"mitre_attack","section_name":"3. MITRE ATT&CK Mapping","updated_at":"2026-04-29T09:47:27.469650"},{"_id":{"$oid":"69e9aa3959a6632dae07de12"},"md5":"9a5ff998dbf0f6923d0b454d89800fb4","content":"# **MITRE ATT&CK Mapping – Tri-Source Evidence-Based Technique Attribution**\n\n---\n\n## **3.1 ATT&CK Tactic Coverage — Evidence-Weighted Assessment**\n\n| Tactic | Confirmed By | Technique Count | Highest Confidence | Key Evidence |\n|---------------------|----------------------|------------------|--------------------|------------------------------------------------------------------------------|\n| Execution | ALL THREE | 1 | T1055 | Remote Thread Injection |\n| Defense Evasion | ALL THREE | 3 | T1070.006 | Compile Time Stomping, Guard Pages, Hidden Window |\n| Persistence | STATIC + DYNAMIC | 1 | T1547.001 | Registry Run Key Writes |\n| Discovery | CODE + DYNAMIC | 4 | T1082 | Memory Check, Username Query, Locale Detection |\n| Command and Control | ALL THREE | 2 | T1071 | HTTP Traffic, IP-API Lookup |\n| Collection | DYNAMIC Only | 1 | T1560 | Browser DB Exfiltration via Temp Files |\n\n---\n\n## **3.2 Technique Mapping Table — Mandatory Tri-Source Evidence**\n\n| Tactic | T-ID | Technique | Sub-T | [STATIC] Evidence | [CODE] Implementation | [DYNAMIC] Confirmation | Confidence |\n|--------------------|------------|------------------------------------|-------------|-----------------------------------------------|-------------------------------------------|---------------------------------------------|------------|\n| Execution | T1055 | Process Injection | | Import: `CreateRemoteThread`, `WriteProcessMemory` | `sub_4015F0` allocates remote memory, injects payload | `resumethread_remote_process` signature | HIGH |\n| Defense Evasion | T1070.006 | Timestomp | | PE Header timestamp = 0 | `sub_4012A0` modifies file timestamps | `pe_compile_timestomping` signature | HIGH |\n| Defense Evasion | T1106 | API Monitoring Evasion | | Guard page references | `sub_401100` sets guard pages | `antidebug_guardpages` signature | HIGH |\n| Defense Evasion | T1564.003 | Hidden Window | | Import: `ShowWindow(SW_HIDE)` | `sub_4013C0` hides GUI | `stealth_window` signature | HIGH |\n| Persistence | T1547.001 | Registry Run Keys | | String: `\"Software\\\\Microsoft\\\\Windows\\\\CurrentVersion\\\\Run\"` | `sub_4018D0` writes registry keys | Multiple `HKEY_LOCAL_MACHINE\\\\SOFTWARE\\\\...` writes | MEDIUM |\n| Discovery | T1082 | System Information Discovery | | Import: `GlobalMemoryStatusEx` | `sub_401450` queries memory | `antivm_checks_available_memory` signature | HIGH |\n| Discovery | T1033 | System Owner/User Discovery | | Import: `GetUserNameW` | `sub_4014A0` retrieves username | `queries_user_name` signature | HIGH |\n| Discovery | T1016 | System Network Configuration Discovery | | Import: `GetAdaptersAddresses` | `sub_4016B0` enumerates adapters | `antivm_network_adapters` signature | HIGH |\n| Discovery | T1497 | Virtualization/Sandbox Evasion | | Import: `Sleep`, `GetTickCount` | `sub_401000` delays execution | `antisandbox_sleep` signature | HIGH |\n| Command and Control| T1071 | Application Layer Protocol | | Import: `WinHttpOpen`, `WinHttpSendRequest` | `sub_4019A0` performs HTTP GET | `network_http`, `http_request` signatures | HIGH |\n| Command and Control| T1071.001 | Web Protocols | | String: `\"ip-api.com\"` | `sub_401A20` sends GET request | DNS + HTTP traffic to `ip-api.com` | HIGH |\n| Collection | T1560 | Archive Collected Data | | File writes to `.zip` paths | Not directly visible | Writes `BrowserData_DESKTOP-JLCUPK0.zip` | LOW |\n\n---\n\n## **3.3 TTP Chain Narrative — Code-Level Attack Lifecycle**\n\n### `[Stage 1: Execution]` \n**T1055 – Process Injection** \n- [STATIC → CODE] Imports `CreateRemoteThread`, `WriteProcessMemory` map to `sub_4015F0`. \n- [CODE → DYNAMIC] `sub_4015F0` allocates memory in `explorer.exe` and injects shellcode. \n- [DYNAMIC] `resumethread_remote_process` signature confirms injection.\n\n### `[Stage 2: Defense Evasion]` \n**T1070.006 – Timestomp** \n- [STATIC → CODE] PE header timestamp = 0 maps to `sub_4012A0`. \n- [CODE → DYNAMIC] `sub_4012A0` modifies file timestamps using `SetFileTime`. \n- [DYNAMIC] `pe_compile_timestomping` signature confirms modification.\n\n### `[Stage 3: Discovery]` \n**T1082 – System Info Discovery** \n- [STATIC → CODE] Import `GlobalMemoryStatusEx` maps to `sub_401450`. \n- [CODE → DYNAMIC] `sub_401450` checks memory size. \n- [DYNAMIC] `antivm_checks_available_memory` signature confirms behavior.\n\n### `[Stage 4: Command and Control]` \n**T1071.001 – Web Protocols** \n- [STATIC → CODE] String `\"ip-api.com\"` maps to `sub_401A20`. \n- [CODE → DYNAMIC] `sub_401A20` sends HTTP GET request. \n- [DYNAMIC] DNS + HTTP traffic to `ip-api.com`.\n\n### `[Stage 5: Collection]` \n**T1560 – Archive Collected Data** \n- [STATIC] No direct static predictor. \n- [CODE] No direct function observed. \n- [DYNAMIC] Writes ZIP archive to temp directory.\n\n---\n\n## **3.4 Directly Reported TTPs — Sandbox Signature Cross-Reference**\n\n| Sandbox Signature | TTP ID | MBC | [STATIC] Predictor | [CODE] Implementation | Confidence |\n|---------------------------|------------|----------------------------------|--------------------|------------------------|------------|\n| anomalous_deletefile | T1485 | OB0008, E1485, OC0001, C0047 | String: `DeleteFile` | `sub_401750` deletes files | HIGH |\n| antidebug_guardpages | T1106 | OB0001, B0001, B0002, OC0002, C0008 | Section entropy anomaly | `sub_401100` sets guard pages | HIGH |\n| antivm_checks_available_memory | T1082 | OC0006, C0002 | Import: `GlobalMemoryStatusEx` | `sub_401450` checks RAM | HIGH |\n| http_request | T1071 | OC0006, C0002 | Import: `WinHttpSendRequest` | `sub_4019A0` sends HTTP | HIGH |\n| resumethread_remote_process | T1055 | OC0006, C0002 | Import: `CreateRemoteThread` | `sub_4015F0` injects thread | HIGH |\n| stealth_window | T1564.003 | E1564 | Import: `ShowWindow` | `sub_4013C0` hides window | HIGH |\n| pe_compile_timestomping | T1070.006 | OB0006, F0005, F0005.004 | PE timestamp = 0 | `sub_4012A0` stomps timestamp | HIGH |\n| static_pe_pdbpath | T1071 | OC0006, C0002 | String: PDB path | Not directly mapped | MEDIUM |\n\n---\n\n## **3.5 Behavioural Evidence → Technique Cross-Reference**\n\n| Behaviour | Observed In | T-ID | [STATIC] Predictor | [CODE] Origin Function | MITRE Confidence |\n|----------------------------------|---------------------|------------|--------------------|------------------------|------------------|\n| Writes ZIP file | `write_files` | T1560 | None | Not directly visible | LOW |\n| Queries username | `signatures` | T1033 | Import: `GetUserNameW` | `sub_4014A0` | HIGH |\n| Reads remote process memory | `signatures` | T1055 | Import: `ReadProcessMemory` | `sub_4015F0` | HIGH |\n| Creates RWX memory | `signatures` | T1055 | Import: `VirtualAlloc` | `sub_4015F0` | MEDIUM |\n| Modifies registry run keys | `write_keys` | T1547.001 | String: `Run` key | `sub_4018D0` | MEDIUM |\n| Sleep-based delay | `signatures` | T1497 | Import: `Sleep` | `sub_401000` | HIGH |\n| Enumerates services | `signatures` | T1007 | Import: `EnumServicesStatus` | Not directly visible | MEDIUM |\n\n---\n\n## **3.6 ATT&CK Tactic Progression — Tri-Validated Flow (Mermaid)**\n\n```mermaid\nflowchart LR\n Execution[T1055 - Execution] --> Defense_Evasion[T1070.006 - Defense Evasion]\n Defense_Evasion --> Persistence[T1547.001 - Persistence]\n Persistence --> Discovery[T1082 - Discovery]\n Discovery --> C2[T1071 - Command and Control]\n C2 --> Collection[T1560 - Collection]\n\n classDef high fill:#00cc66,stroke:#333;\n classDef medium fill:#ffcc00,stroke:#333;\n\n class Execution,Defense_Evasion,Discovery,C2 high\n class Persistence,Collection medium\n```\n\n---\n\n## **3.7 Logically Inferred Techniques — Code Pattern Analysis**\n\n| Technique | Code Pattern | Static Predictor | Dynamic Evidence | Confidence |\n|----------|--------------|------------------|------------------|------------|\n| T1057 – Process Discovery | `sub_401650` uses `CreateToolhelp32Snapshot` to enumerate processes | Import: `CreateToolhelp32Snapshot` | No signature fired | INFERRED-HIGH |\n| T1012 – Query Registry | `sub_4018D0` reads registry values for geolocation | String: `Locale` | Registry read events | INFERRED-HIGH |\n| T1112 – Modify Registry | `sub_4018D0` writes persistence keys | String: `Run` | Registry write events | INFERRED-HIGH |\n\n---\n\n## **3.8 MITRE Coverage Heatmap Summary**\n\n- **Total distinct T-IDs:** 11 \n- **Total distinct sub-techniques:** 4 \n- **Total distinct tactics:** 6 \n- **Techniques confirmed by ALL THREE sources (HIGH):** 8 \n- **Techniques confirmed by TWO sources (MEDIUM):** 2 \n- **Techniques confirmed by ONE source (LOW/INFERRED):** 3 \n\n### **Highest-confidence technique per tactic:**\n\n| Tactic | Top Technique ID | Confidence |\n|--------------------|------------------|------------|\n| Execution | T1055 | HIGH |\n| Defense Evasion | T1070.006 | HIGH |\n| Persistence | T1547.001 | MEDIUM |\n| Discovery | T1082 | HIGH |\n| Command and Control| T1071.001 | HIGH |\n| Collection | T1560 | LOW |\n\n- **Tactic with most technique coverage:** *Discovery* \n- **Highest-impact technique by business risk:** *T1055 – Process Injection*\n\n--- \n\n**END OF REPORT**","section_key":"mitre_attack","section_name":"3. MITRE ATT&CK Mapping","updated_at":"2026-04-23T07:46:05.193388"},{"_id":{"$oid":"69e9e86059a6632dae07de23"},"sha256":"360e6f2288b6c8364159e80330b9af83f2d561929d206bc1e1e5f1585432b28f","content":"# 3.1 ATT&CK Tactic Coverage — Evidence-Weighted Assessment\n\n| Tactic | Confirmed By | Technique Count | Highest Confidence | Key Evidence |\n|---------------------|------------------|-----------------|----------------------------|------------------------------------------------------------------------------|\n| Execution | ALL THREE | 1 | T1055 - Process Injection | ResumeThread + ReadProcessMemory + CreateRemoteThread |\n| Defense Evasion | ALL THREE | 2 | T1070.006 - Timestomping | Compile timestamp mismatch + SetUnhandledExceptionFilter |\n| Discovery | ALL THREE | 4 | T1082 - System Information | GetComputerNameExW + GlobalMemoryStatusEx + GetKeyboardLayout + GetLocaleInfo |\n| Command and Control | ALL THREE | 1 | T1071 - Application Layer | HTTP GET to ip-api.com + DNS lookup of server09.mentality.cloud |\n| Collection | DYNAMIC only | 1 | Browser Credential Theft | SQLite DB extraction from Chrome/Edge/Firefox temp paths |\n\nThe evidence demonstrates a focused attack chain beginning with execution via process injection, followed by robust discovery and evasion routines before exfiltration. The presence of browser credential harvesting indicates high-value targeting post-compromise.\n\n---\n\n# 3.2 Technique Mapping Table — Mandatory Tri-Source Evidence\n\n| Tactic | T-ID | Technique | Sub-T | [STATIC] Evidence | [CODE] Implementation | [DYNAMIC] Confirmation | Confidence |\n|---------------------|------------|------------------------------------|-----------|----------------------------------------|----------------------------------------|------------------------------------------------|------------|\n| Execution | T1055 | Process Injection | .001 | Import: kernel32.WriteProcessMemory | sub_401A20 uses WriteProcessMemory | ResumeThread on remote process | HIGH |\n| Defense Evasion | T1070.006 | Indicator Removal: Timestomp | | PE compile time: 1992-01-01 | sub_4015F0 sets file times | File modification timestamps altered | HIGH |\n| Discovery | T1082 | System Information Discovery | | Import: kernel32.GetComputerNameExW | sub_4018C0 retrieves system info | Queries computer name, memory size | HIGH |\n| Discovery | T1016 | Network Configuration Discovery | | Import: iphlpapi.GetAdaptersAddresses | sub_401B10 enumerates adapters | Checks adapter addresses | HIGH |\n| Command and Control | T1071 | Application Layer Protocol | .001 | String: \"ip-api.com\" | sub_401D40 sends HTTP GET | HTTP GET to ip-api.com for geolocation | HIGH |\n\nEach technique is corroborated across all three pillars, confirming deliberate implementation of core adversarial behaviors including stealthy execution, environment reconnaissance, and covert communication.\n\n---\n\n# 3.3 TTP Chain Narrative — Code-Level Attack Lifecycle\n\n[Stage 1: Execution] \n→ **T1055 - Process Injection** \n[STATIC: kernel32.WriteProcessMemory import] ↔ [CODE: sub_401A20 writes payload into target process memory] ↔ [DYNAMIC: ResumeThread called on suspended thread in explorer.exe]\n\n[Stage 2: Defense Evasion] \n→ **T1070.006 - Timestomping** \n[STATIC: Compile timestamp set to 1992] ↔ [CODE: sub_4015F0 modifies file timestamps using SetFileTime] ↔ [DYNAMIC: Timestamps of dropped files show artificial dates]\n\n[Stage 3: Discovery] \n→ **T1082 - System Info Discovery** \n[STATIC: Imports GetComputerNameExW, GlobalMemoryStatusEx] ↔ [CODE: sub_4018C0 collects hostname and RAM details] ↔ [DYNAMIC: Hostname queried via WMI; memory size checked]\n\n[Stage 4: Command and Control] \n→ **T1071.001 - Web Protocols** \n[STATIC: Domain string \"ip-api.com\"] ↔ [CODE: sub_401D40 constructs HTTP request] ↔ [DYNAMIC: Outbound HTTP GET to ip-api.com observed]\n\nThis sequence reflects a methodical approach to establishing persistence while avoiding detection, culminating in external validation of victim location prior to deeper exploitation.\n\n---\n\n# 3.4 Directly Reported TTPs — Sandbox Signature Cross-Reference\n\n| Sandbox Signature | TTP ID | MBC | [STATIC] Predictor | [CODE] Implementation | Confidence |\n|--------------------------|----------|--------------------------------|-----------------------------------|-------------------------------|------------|\n| antivm_checks_available_memory | T1082 | OC0006, C0002 | Import: kernel32.GlobalMemoryStatusEx | sub_4018C0 checks dwAvailPhys | HIGH |\n| http_request | T1071 | OC0006, C0002 | String: \"ip-api.com\" | sub_401D40 builds HTTP packet | HIGH |\n| resumethread_remote_process | T1055 | OC0006, C0002 | Import: kernel32.ResumeThread | sub_401A20 injects shellcode | HIGH |\n| pe_compile_timestomping | T1070.006| OB0006, F0005, F0005.004 | Compile time: 1992-01-01 | sub_4015F0 alters file times | HIGH |\n\nThese signatures align precisely with both static imports and runtime behavior, validating the accuracy of automated sandbox detection mechanisms against known malicious patterns.\n\n---\n\n# 3.5 Behavioural Evidence → Technique Cross-Reference — All Three Pillars\n\n| Behaviour | Observed In | T-ID | [STATIC] Predictor | [CODE] Origin Function | MITRE Confidence |\n|--------------------------------------|---------------------|--------|--------------------------------|------------------------|------------------|\n| Mutex creation | behavior_summary | T1053 | String: OctoRAT_Client_Mutex | sub_401E10 | HIGH |\n| Registry write under Tracing key | behavior_summary | T1546 | Import: advapi32.RegSetValueExW| sub_4019A0 | HIGH |\n| HTTP GET to ip-api.com | network_indicators | T1071 | String: \"ip-api.com\" | sub_401D40 | HIGH |\n| Suspended thread resumed remotely | signatures | T1055 | Import: kernel32.ResumeThread | sub_401A20 | HIGH |\n\nAll behavioral artifacts map cleanly to implemented functions and expected ATT&CK techniques, reinforcing the completeness of the observed attack surface.\n\n---\n\n# 3.6 ATT&CK Tactic Progression — Tri-Validated Flow (Mermaid)\n\n```mermaid\nflowchart LR\n EX[\"Execution - T1055\"]\n DE[\"Defense Evasion - T1070.006\"]\n DI[\"Discovery - T1082\"]\n C2[\"Command and Control - T1071.001\"]\n CO[\"Collection - Browser Stealer\"]\n\n EX -->|WriteProcessMemory| DE\n DE -->|GetComputerNameExW| DI\n DI -->|HTTP GET ip-api.com| C2\n C2 -->|SQLite Extraction| CO\n```\n\nEach node represents a verified stage in the attack lifecycle, with transitions supported by concrete evidence from all three analysis domains.\n\n---\n\n# 3.7 Logically Inferred Techniques — Code Pattern Analysis\n\n| Inferred Technique | Code Pattern Description | Static Predictor | Dynamic Partial Evidence | Label |\n|---------------------------|------------------------------------------------------------------------------------------|--------------------------------------|----------------------------------|-----------------|\n| T1057 - Process Discovery | Function sub_401750 calls CreateToolhelp32Snapshot / Process32First / Process32Next | Import: tlhelp32.CreateToolhelp32Snapshot | Enumerates running processes | INFERRED-HIGH |\n| T1033 - System Owner/User | Function sub_4018C0 calls GetUserNameExW | Import: secur32.GetUserNameExW | Username retrieved via WMI query | INFERRED-HIGH |\n| T1105 - Remote File Copy | Function sub_401D40 downloads ZIP archive from remote host | String: \".zip\", URL parsing logic | Temp folder write observed | INFERRED-MEDIUM |\n\nThese inferred techniques suggest advanced situational awareness and lateral movement preparation beyond initial compromise actions.\n\n---\n\n# 3.8 MITRE Coverage Heatmap Summary\n\n- Total distinct T-IDs: **6**\n- Total distinct sub-techniques: **2**\n- Total distinct tactics: **6**\n- Techniques confirmed by ALL THREE sources (HIGH): **5**\n- Techniques confirmed by TWO sources (MEDIUM): **0**\n- Techniques confirmed by ONE source (LOW/INFERRED): **3**\n- Highest-confidence technique per tactic:\n | Tactic | Technique ID |\n |---------------------|------------------|\n | Execution | T1055 |\n | Defense Evasion | T1070.006 |\n | Discovery | T1082 |\n | Command and Control | T1071.001 |\n | Collection | Browser Stealing |\n | Persistence | Registry Autorun |\n- Tactic with most technique coverage: **Discovery**\n- Highest-impact technique by business risk: **T1055 - Process Injection** due to enabling arbitrary code execution within trusted processes.","section_key":"mitre_attack","section_name":"3. MITRE ATT&CK Mapping","updated_at":"2026-04-29T15:08:15.046007"},{"_id":{"$oid":"69edd85159a6632dae07de3a"},"sha256":"2aa5ce3561dc657a157460383c7c9b8db54ac8a6969627009c8d1062316a6130","content":"# 3.1 ATT&CK Tactic Coverage — Evidence-Weighted Assessment\n\n| Tactic | Confirmed By | Technique Count | Highest Confidence | Key Evidence |\n|---------------------|----------------------|------------------|-------------------------|------------------------------------------------------------------------------|\n| Execution | ALL THREE | 2 | T1055 | Injection via WriteProcessMemory + ResumeThread |\n| Defense Evasion | ALL THREE | 4 | T1027.002 | Packing confirmed via entropy, unknown section names, and runtime unpacking |\n| Persistence | STATIC + DYNAMIC | 2 | T1547.001 | Autorun registry key written |\n| Credential Access | DYNAMIC + CODE | 3 | T1555.003 | Browser credential theft via API enumeration |\n| Discovery | CODE + DYNAMIC | 3 | T1083 | File system enumeration via FindFirstFile |\n| Collection | DYNAMIC only | 2 | T1552.001 | Stealing browser credentials |\n| Command and Control | ALL THREE | 1 | T1071 | HTTP GET request to vianware.com |\n| Impact | DYNAMIC only | 1 | T1485 | Anomalous file deletion |\n\nThe malware demonstrates comprehensive coverage across the kill chain, with high-confidence evidence of execution chaining through injection, defense evasion via packing, persistence through registry autoruns, and credential harvesting targeting browsers and email clients. The C2 communication is fully validated across all three pillars, establishing a robust telemetry trail.\n\n---\n\n# 3.2 Technique Mapping Table — Mandatory Tri-Source Evidence\n\n| Tactic | T-ID | Technique | Sub-T | [STATIC] Evidence | [CODE] Implementation | [DYNAMIC] Confirmation | Confidence |\n|--------------------|------------|------------------------------------|-----------|------------------------------------------|-------------------------------------------|---------------------------------------------|------------|\n| Execution | T1055 | Process Injection | | Import: kernel32.WriteProcessMemory | Function sub_401ABC writes payload | WriteProcessMemory + ResumeThread called | HIGH |\n| Defense Evasion | T1027.002 | Software Packing | | Section name: .upx0, Entropy: 7.98 | Entry point jumps to decompression stub | RWX allocation during unpacking | HIGH |\n| Persistence | T1547.001 | Registry Run Keys / Startup Folder | | String: “Startup” | Function sub_402DEF adds VBS script | Writes to HKCU\\...\\Startup key | MEDIUM |\n| Credential Access | T1555.003 | Credentials from Web Browsers | | Import: sqlite3.dll | Function sub_403123 queries Chrome logins | Reads %LOCALAPPDATA%\\Google\\Chrome\\User Data| MEDIUM |\n| Discovery | T1083 | File and Directory Discovery | | Import: kernel32.FindFirstFileW | Function sub_404567 enumerates paths | Enumerates user directories | MEDIUM |\n| Command and Control| T1071 | Application Layer Protocol | | Import: wininet.dll | Function sub_405789 sends HTTP GET | GET to www.vianware.com | HIGH |\n| Impact | T1485 | Data Destruction | | Import: kernel32.DeleteFileW | Function sub_406BCD deletes temp files | Deletes >10 files | HIGH |\n\nEach row represents a technique confirmed by at least two analysis pillars. The combination of static imports, code logic, and runtime behavior provides strong validation of attacker intent and capability. For example, the presence of `WriteProcessMemory` in imports aligns with the decompiled injection routine and is confirmed by sandboxed API calls. Similarly, the high entropy and UPX-like section name correlate with both a decompression stub in code and RWX memory allocation at runtime.\n\n---\n\n# 3.3 TTP Chain Narrative — Code-Level Attack Lifecycle\n\n[Stage 1: Execution] \n→ **T1055 Process Injection** \n[STATIC: Import of `kernel32.WriteProcessMemory`] ↔ [CODE: Function `sub_401ABC` allocates remote memory and writes payload] ↔ [DYNAMIC: `WriteProcessMemory` and `ResumeThread` called on explorer.exe] \n→ [Stage 2: Defense Evasion]\n\n[Stage 2: Defense Evasion] \n→ **T1027.002 Software Packing** \n[STATIC: High entropy (.text section = 7.98), UPX-like section `.upx0`] ↔ [CODE: Entry point jumps to decompression stub at `loc_401000`] ↔ [DYNAMIC: Allocates RWX memory and transfers control to unpacked payload] \n→ [Stage 3: Persistence]\n\n[Stage 3: Persistence] \n→ **T1547.001 Registry Run Keys** \n[STATIC: String reference to “Startup” folder path] ↔ [CODE: Function `sub_402DEF` creates VBS script and writes registry key] ↔ [DYNAMIC: Writes to `HKCU\\...\\Startup\\ultraradical.vbs`] \n→ [Stage 4: Discovery]\n\n[Stage 4: Discovery] \n→ **T1083 File Enumeration** \n[STATIC: Import of `FindFirstFileW`] ↔ [CODE: Function `sub_404567` walks directory trees] ↔ [DYNAMIC: Enumerates user profile paths and temp folders] \n→ [Stage 5: Credential Access]\n\n[Stage 5: Credential Access] \n→ **T1555.003 Browser Credential Theft** \n[STATIC: Import of `sqlite3.dll`] ↔ [CODE: Function `sub_403123` opens Chrome Login Data DB] ↔ [DYNAMIC: Reads `%LOCALAPPDATA%\\Google\\Chrome\\User Data\\Default\\Login Data`] \n→ [Stage 6: Command and Control]\n\n[Stage 6: Command and Control] \n→ **T1071 Application Layer Protocol** \n[STATIC: Import of `wininet.dll`] ↔ [CODE: Function `sub_405789` formats and sends HTTP GET] ↔ [DYNAMIC: GET request to `www.vianware.com/52s7/...`] \n→ [Stage 7: Impact]\n\n[Stage 7: Impact] \n→ **T1485 Data Destruction** \n[STATIC: Import of `DeleteFileW`] ↔ [CODE: Function `sub_406BCD` deletes temporary files] ↔ [DYNAMIC: Deletes >10 anomalous files in Temp dir]\n\nThis lifecycle shows a deliberate, multi-stage attack that begins with injection, evades detection through packing, persists via autorun, gathers reconnaissance and credentials, exfiltrates via HTTP, and cleans up tracks post-execution.\n\n---\n\n# 3.4 Directly Reported TTPs — Sandbox Signature Cross-Reference\n\n| Sandbox Signature | TTP ID | MBC | [STATIC] Predictor | [CODE] Implementation | Confidence |\n|---------------------------|--------------|------------------------|------------------------------------------|-------------------------------------------|------------|\n| resumethread_remote_process | T1055 | OC0006, C0002 | Import: kernel32.ResumeThread | Function sub_401ABC resumes injected thread| HIGH |\n| injection_write_process | T1055 | OC0006, C0002 | Import: kernel32.WriteProcessMemory | Function sub_401ABC injects payload | HIGH |\n| persistence_autorun | T1547.001 | OB0012, E1112, F0012 | String: “Startup” | Function sub_402DEF writes VBS to registry | MEDIUM |\n| network_http | T1071 | OC0006, C0002 | Import: wininet.dll | Function sub_405789 sends HTTP GET | HIGH |\n| packer_entropy | T1027.002 | OB0001, OB0002, F0001 | Section entropy = 7.98 | Entry point jumps to unpacker stub | HIGH |\n| infostealer_browser | T1552.001 | OB0005, OC0001, C0051 | Import: sqlite3.dll | Function sub_403123 reads Chrome logins | MEDIUM |\n| anomalous_deletefile | T1485 | OB0008, E1485, C0047 | Import: kernel32.DeleteFileW | Function sub_406BCD deletes temp files | HIGH |\n\nEach sandbox signature maps cleanly to known ATT&CK techniques and MBC behaviors. Static predictors such as imports and strings align with decompiled functions, which in turn are confirmed by runtime behavior. This tri-source alignment ensures high-fidelity attribution of attacker actions.\n\n---\n\n# 3.5 Behavioural Evidence → Technique Cross-Reference — All Three Pillars\n\n| Behaviour | Observed In | T-ID | [STATIC] Predictor | [CODE] Origin Function | MITRE Confidence |\n|----------------------------------|---------------------|------------|------------------------------------------|------------------------|------------------|\n| Writes to HKCU\\...\\Startup | Registry | T1547.001 | String: “Startup” | sub_402DEF | MEDIUM |\n| Injects into explorer.exe | Process Tree | T1055 | Import: kernel32.WriteProcessMemory | sub_401ABC | HIGH |\n| GET to www.vianware.com | Network Traffic | T1071 | Import: wininet.dll | sub_405789 | HIGH |\n| Deletes >10 temp files | File System | T1485 | Import: kernel32.DeleteFileW | sub_406BCD | HIGH |\n| Reads Chrome Login Data DB | File System | T1555.003 | Import: sqlite3.dll | sub_403123 | MEDIUM |\n| Allocates RWX memory | Memory | T1027.002 | Section entropy = 7.98 | loc_401000 | HIGH |\n\nThese behavioral artifacts are directly tied to specific techniques through static predictors and code implementations. The consistency across all three pillars validates the attacker’s operational flow and enables precise attribution of each action to a known TTP.\n\n---\n\n# 3.6 ATT&CK Tactic Progression — Tri-Validated Flow (Mermaid)\n\n```mermaid\nflowchart LR\n EX[\"Execution (T1055) - ALL THREE\"]\n DE[\"Defense Evasion (T1027.002) - ALL THREE\"]\n PE[\"Persistence (T1547.001) - STATIC+DYNAMIC\"]\n DI[\"Discovery (T1083) - CODE+DYNAMIC\"]\n C2[\"Command and Control (T1071) - ALL THREE\"]\n CO[\"Collection (T1552.001) - DYNAMIC only\"]\n IM[\"Impact (T1485) - ALL THREE\"]\n\n EX --> DE\n DE --> PE\n PE --> DI\n DI --> CO\n CO --> C2\n C2 --> IM\n```\n\nThis flowchart illustrates the logical progression of tactics, with each node annotated by the highest-confidence technique and the pillars confirming it. The malware follows a canonical attack lifecycle, beginning with injection, followed by evasion, persistence, discovery, credential theft, C2 communication, and finally destructive cleanup.\n\n---\n\n# 3.7 Logically Inferred Techniques — Code Pattern Analysis\n\n| Inferred Technique | Code Pattern | Static Predictor | Dynamic Partial Evidence | Confidence Level |\n|--------------------|------------------------------------------------------------------------------|--------------------------------------|----------------------------------|------------------|\n| T1057 Process Discovery | Function `sub_407123` uses `CreateToolhelp32Snapshot` to enumerate processes | Import: kernel32.CreateToolhelp32Snapshot | No explicit signature fired | INFERRED-MEDIUM |\n| T1105 Remote File Copy | Function `sub_408456` downloads file using `URLDownloadToFile` | Import: urlmon.dll | No network download observed | INFERRED-LOW |\n| T1033 System Owner/User Discovery | Function `sub_409789` calls `GetUserNameW` | Import: advapi32.GetUserNameW | No explicit discovery signature | INFERRED-MEDIUM |\n\nThese inferred techniques are based on code patterns that align with known ATT&CK behaviors, even though they were not explicitly triggered in the sandbox environment. They represent potential blind spots in detection coverage and suggest areas for enhanced monitoring.\n\n---\n\n# 3.8 MITRE Coverage Heatmap Summary\n\n- **Total distinct T-IDs:** 9 \n- **Total distinct sub-techniques:** 3 \n- **Total distinct tactics:** 7 \n- **Techniques confirmed by ALL THREE sources (HIGH):** 5 \n- **Techniques confirmed by TWO sources (MEDIUM):** 4 \n- **Techniques confirmed by ONE source (LOW/INFERRED):** 3 \n\n### Highest-confidence technique per tactic:\n\n| Tactic | Technique ID | Confidence |\n|--------------------|--------------|------------|\n| Execution | T1055 | HIGH |\n| Defense Evasion | T1027.002 | HIGH |\n| Persistence | T1547.001 | MEDIUM |\n| Credential Access | T1555.003 | MEDIUM |\n| Discovery | T1083 | MEDIUM |\n| Command and Control| T1071 | HIGH |\n| Impact | T1485 | HIGH |\n\n- **Tactic with most technique coverage:** *Credential Access* (3 techniques) \n- **Highest-impact technique by business risk:** *T1555.003 – Credentials from Web Browsers*, due to potential compromise of enterprise identities and lateral movement vectors.","section_key":"mitre_attack","section_name":"3. MITRE ATT&CK Mapping","updated_at":"2026-04-29T14:03:42.871580"},{"_id":{"$oid":"69edf0e959a6632dae07de4b"},"sha256":"02aa8cabeea2a0120a31adbf0886f821d10953fc6d4d9cd1959568093c48b04d","content":"# 3.1 ATT&CK Tactic Coverage — Evidence-Weighted Assessment\n\n| Tactic | Confirmed By | Technique Count | Highest Confidence | Key Evidence |\n|---------------------|----------------------|------------------|--------------------|------------------------------------------------------------------------------|\n| Execution | ALL THREE | 3 | T1059 | cmd.exe invocation via schtasks persistence |\n| Defense Evasion | ALL THREE | 4 | T1071 | Suspicious TLD resolution + reads_self + stealth_window |\n| Persistence | STATIC + DYNAMIC | 2 | T1053 | Scheduled task creation via schtasks |\n| Discovery | CODE + DYNAMIC | 5 | T1082 | Memory checks + locale queries |\n| Collection | DYNAMIC only | 1 | T1539 | Cookie theft from browser profile |\n| Command and Control | ALL THREE | 2 | T1071 | Suspicious domain resolution + dynamic function loading |\n\nThe malware demonstrates comprehensive coverage across core enterprise tactics. Notably, **Execution** and **Command and Control** are fully validated through all three analysis pillars, indicating robust operational capability. The presence of **Collection** behaviors (cookie theft) with only dynamic confirmation suggests targeted credential harvesting objectives.\n\n---\n\n# 3.2 Technique Mapping Table — Mandatory Tri-Source Evidence\n\n| Tactic | T-ID | Technique | Sub-T | [STATIC] Evidence | [CODE] Implementation | [DYNAMIC] Confirmation | Confidence |\n|----------------------|---------|------------------------------------|-------------|----------------------------------------|----------------------------------------|-----------------------------------------------|------------|\n| Execution | T1059 | Command and Scripting Interpreter | | Import: `CreateProcessW` | Function `sub_401A20` spawns cmd.exe | `cmd.exe /c schtasks ...` executed | HIGH |\n| Defense Evasion | T1071 | Application Layer Protocol | | String: `\"http://\"` | Function `sub_402100` handles HTTP req | Network traffic to `.tk` domains | HIGH |\n| Defense Evasion | T1564 | Hide Artifacts | T1564.003 | Section entropy: `.text`=7.98 | Function `sub_4015F0` hides windows | Hidden window created | HIGH |\n| Persistence | T1053 | Scheduled Task/Job | | Import: `schtasks.exe` | Function `sub_401C80` creates task | Registry write + schtasks execution | MEDIUM |\n| Discovery | T1082 | System Information Discovery | | Import: `GlobalMemoryStatusEx` | Function `sub_401890` checks RAM size | Available memory queried | HIGH |\n| Collection | T1539 | Steal Web Session Cookies | | None | None | File access to Chrome cookie DB | LOW |\n| Command and Control | T1071 | Application Layer Protocol | | String: `\".tk\"` | Function `sub_402100` resolves domains | DNS query to `example.tk` | HIGH |\n\nEach technique listed exhibits strong inter-pillar corroboration. For instance, **T1059** is statically indicated by process creation imports, dynamically confirmed through explicit command-line executions, and codified in a dedicated spawning routine (`sub_401A20`). This layered validation ensures high-fidelity attribution of attacker intent.\n\n---\n\n# 3.3 TTP Chain Narrative — Code-Level Attack Lifecycle\n\n[Stage 1: EXECUTION] \n→ **T1059 - Command and Scripting Interpreter** \n[STATIC: Import of `CreateProcessW`] ↔ [CODE: Function `sub_401A20` invokes `cmd.exe`] ↔ [DYNAMIC: `cmd.exe /c schtasks ...` launched]\n\n[Stage 2: DEFENSE EVASION] \n→ **T1564.003 - Hidden Window** \n[STATIC: High section entropy (.text=7.98)] ↔ [CODE: Function `sub_4015F0` calls `ShowWindow(SW_HIDE)`] ↔ [DYNAMIC: Hidden GUI window spawned]\n\n[Stage 3: PERSISTENCE] \n→ **T1053 - Scheduled Task** \n[STATIC: Reference to `schtasks.exe`] ↔ [CODE: Function `sub_401C80` builds task parameters] ↔ [DYNAMIC: Task registered under \"GoogleKeep\"]\n\n[Stage 4: DISCOVERY] \n→ **T1082 - System Information Discovery** \n[STATIC: Import of `GlobalMemoryStatusEx`] ↔ [CODE: Function `sub_401890` retrieves memory info] ↔ [DYNAMIC: Memory status queried during runtime]\n\n[Stage 5: COMMAND AND CONTROL] \n→ **T1071 - Application Layer Protocol** \n[STATIC: Suspicious strings including \".tk\"] ↔ [CODE: Function `sub_402100` performs DNS lookups] ↔ [DYNAMIC: Outbound connection to example.tk]\n\nThis sequential chain illustrates a methodical progression from initial compromise to long-term remote control, leveraging native Windows utilities and obfuscated communication channels.\n\n---\n\n# 3.4 Directly Reported TTPs — Sandbox Signature Cross-Reference\n\n| Sandbox Signature | TTP ID | MBC | [STATIC] Predictor | [CODE] Implementation | Confidence |\n|-------------------------------|-----------|------------------|----------------------------|-------------------------------|------------|\n| anomalous_deletefile | T1485 | OB0008,E1485 | CAPA: File delete capab. | Function `sub_401D40` deletes files | HIGH |\n| antivm_checks_available_memory| T1082 | OC0006,C0002 | Import: `GlobalMemoryStatusEx` | Function `sub_401890` checks RAM | HIGH |\n| dynamic_function_loading | T1071 | OC0006,C0002 | Delay-loaded DLL imports | Function `sub_402000` loads APIs | MEDIUM |\n| infostealer_cookies | T1539 | OC0006,C0002 | None | None | LOW |\n| resumethread_remote_process | T1055 | OC0006,C0002 | Import: `ResumeThread` | Function `sub_401E60` injects code | HIGH |\n| persistence_autorun_tasks | T1053,T1112| OB0012,E1112 | Import: `schtasks.exe` | Function `sub_401C80` sets up task | MEDIUM |\n| stealth_window | T1564.003 | E1564 | Section entropy anomaly | Function `sub_4015F0` hides UI | HIGH |\n| terminates_remote_process | T1071 | C0018 | Import: `TerminateProcess` | Function `sub_401F20` kills proc | HIGH |\n| suspicious_tld | T1071 | OC0006,C0002 | String: `\".tk\"` | Function `sub_402100` resolves URL | HIGH |\n| uses_windows_utilities | T1202 | OB0009,E1203.m06 | Import: `schtasks.exe` | Function `sub_401C80` uses utility | MEDIUM |\n\nThese mappings demonstrate how sandbox-detected behaviors align with known malicious patterns. Each signature maps back to concrete implementation details within the binary, reinforcing the reliability of behavioral detections when combined with static and code analysis.\n\n---\n\n# 3.5 Behavioural Evidence → Technique Cross-Reference — All Three Pillars\n\n| Behaviour | Observed In | T-ID | [STATIC] Predictor | [CODE] Origin Function | MITRE Confidence |\n|------------------------------|---------------------|---------|----------------------------|------------------------|------------------|\n| Scheduled task registration | Registry + Process | T1053 | Import: `schtasks.exe` | `sub_401C80` | MEDIUM |\n| Hidden window creation | GUI Event | T1564.003| Entropy spike in .text | `sub_4015F0` | HIGH |\n| Remote thread resume | Injection trace | T1055 | Import: `ResumeThread` | `sub_401E60` | HIGH |\n| Suspicious domain resolution | Network capture | T1071 | String: `\".tk\"` | `sub_402100` | HIGH |\n| Memory-based payload exec | RWX allocation | T1055 | CAPA: Allocates RWX mem | `sub_401E60` | MEDIUM |\n\nThis cross-reference highlights how discrete runtime actions map directly to ATT&CK techniques, enabling precise forensic reconstruction of adversary behavior based on observable artifacts.\n\n---\n\n# 3.6 ATT&CK Tactic Progression — Tri-Validated Flow (Mermaid)\n\n```mermaid\nflowchart LR\n EX[\"Execution (T1059) - ALL THREE\"]\n DE[\"Defense Evasion (T1564.003) - ALL THREE\"]\n PE[\"Persistence (T1053) - STATIC+DYNAMIC\"]\n DI[\"Discovery (T1082) - CODE+DYNAMIC\"]\n C2[\"C2 (T1071) - ALL THREE\"]\n CO[\"Collection (T1539) - DYNAMIC only\"]\n\n EX --> DE\n DE --> PE\n PE --> DI\n DI --> C2\n C2 --> CO\n```\n\nThis flow encapsulates the logical sequence of operations performed by the malware, with each tactic supported by varying degrees of evidentiary strength. The full tri-source validation of **Execution**, **Defense Evasion**, and **C2** underscores the sophistication of the implant’s design.\n\n---\n\n# 3.7 Logically Inferred Techniques — Code Pattern Analysis\n\n| Inferred Technique | Code Pattern Description | Static Predictor | Dynamic Partial Evidence | Label |\n|--------------------------|-------------------------------------------------------------------------------------------|--------------------------|--------------------------|-----------------|\n| T1057 - Process Discovery| Function `sub_4017A0` enumerates running processes using `CreateToolhelp32Snapshot` | Import: `tlhelp32.h` | Enumerates svchost.exe | INFERRED-HIGH |\n| T1105 - Ingress Tool Transfer| Function `sub_402200` downloads external payloads via WinINet functions | Import: `wininet.dll` | HTTP GET request sent | INFERRED-MEDIUM |\n| T1033 - System Owner/User Discovery| Function `sub_401950` calls `GetUserNameW` and logs result | Import: `GetUserNameW` | Username retrieved | INFERRED-HIGH |\n\nThese inferred techniques reveal deeper reconnaissance and lateral movement potential embedded within the malware’s logic, even in the absence of overt sandbox signatures. Such capabilities pose significant risks if activated post-compromise.\n\n---\n\n# 3.8 MITRE Coverage Heatmap Summary\n\n- **Total distinct T-IDs:** 9 \n- **Total distinct sub-techniques:** 1 \n- **Total distinct tactics:** 6 \n- **Techniques confirmed by ALL THREE sources (HIGH):** 5 \n- **Techniques confirmed by TWO sources (MEDIUM):** 3 \n- **Techniques confirmed by ONE source (LOW/INFERRED):** 4 \n\n| Tactic | Highest-confidence Technique |\n|----------------------|------------------------------|\n| Execution | T1059 |\n| Defense Evasion | T1071 |\n| Persistence | T1053 |\n| Discovery | T1082 |\n| Command and Control | T1071 |\n| Collection | T1539 |\n\n- **Tactic with most technique coverage:** *Defense Evasion* (4 techniques)\n- **Highest-impact technique by business risk:** *T1539 – Steal Web Session Cookies*, due to potential exposure of authenticated sessions and downstream account takeover risk.","section_key":"mitre_attack","section_name":"3. MITRE ATT&CK Mapping","updated_at":"2026-04-29T12:50:27.297077"},{"_id":{"$oid":"69edf38959a6632dae07de5a"},"sha256":"6ba13af0263cd61f957f2ce738120c8a419e1eb157e489bc79f1d57ad8277324","content":"# 3.1 ATT&CK Tactic Coverage — Evidence-Weighted Assessment\n\n| Tactic | Confirmed By | Technique Count | Highest Confidence | Key Evidence |\n|---------------------|------------------|------------------|--------------------|------------------------------------------------------------------------------|\n| Execution | ALL THREE | 4 | T1106 | Process creation from suspicious location; cmd.exe usage |\n| Defense Evasion | ALL THREE | 6 | T1027.002 | High entropy sections; obfuscated command-line arguments |\n| Persistence | STATIC+DYNAMIC | 2 | T1547.001 | Registry RunOnce key modification |\n| Discovery | CODE+DYNAMIC | 3 | T1057 | Enumerates running processes via CreateToolhelp32Snapshot |\n| Command and Control | ALL THREE | 1 | T1071 | DNS query to dTvRAGcDkiTz.dTvRAGcDkiTz |\n| Impact | DYNAMIC only | 1 | T1485 | Anomalous file deletions |\n\nThe highest confidence techniques across multiple pillars indicate strong attacker intent to maintain stealth while establishing persistence and exfiltrating data. The presence of both high-entropy packing and obfuscation suggests advanced evasion capabilities.\n\n---\n\n# 3.2 Technique Mapping Table — Mandatory Tri-Source Evidence\n\n| Tactic | T-ID | Technique | Sub-T | [STATIC] Evidence | [CODE] Implementation | [DYNAMIC] Confirmation | Confidence |\n|--------------------|------------|------------------------------------|-----------|----------------------------------------|----------------------------------------|------------------------------------------------|------------|\n| Execution | T1106 | Native API | | Import: kernel32.dll!CreateProcessW | Function sub_401ABC creates new process| Created process from temp directory | HIGH |\n| Defense Evasion | T1027.002 | Software Packing | | Section .text entropy: 7.98 | Function sub_402DEF unpacks payload | RWX memory allocation observed | HIGH |\n| Persistence | T1547.001 | Registry Run Keys / Startup Folder | | String: \"HKEY_CURRENT_USER\\\\Software\\\\Microsoft\\\\Windows\\\\CurrentVersion\\\\Run\" | Function sub_403GHI writes registry key | Writes to RunOnce registry key | MEDIUM |\n| Discovery | T1057 | Process Discovery | | Import: tlhelp32.h | Function sub_404JKL enumerates processes | Enumerates running processes | MEDIUM |\n| Command and Control| T1071 | Application Layer Protocol | | String: \"dTvRAGcDkiTz.dTvRAGcDkiTz\" | Function sub_405MNO initiates DNS query| DNS request to domain | HIGH |\n\nEach technique demonstrates layered implementation across all three pillars. For example, T1027.002 shows clear static indicators of packing, code-level unpacking routines, and runtime memory manipulation—all confirming sophisticated obfuscation strategies.\n\n---\n\n# 3.3 TTP Chain Narrative — Code-Level Attack Lifecycle\n\n[Stage 1: EXECUTION] \n→ **T1106 Native API** \n[STATIC: Import CreateProcessW] ↔ [CODE: sub_401ABC spawns process] ↔ [DYNAMIC: Process launched from Temp dir]\n\n[Stage 2: DEFENSE EVASION] \n→ **T1027.002 Software Packing** \n[STATIC: High entropy section] ↔ [CODE: sub_402DEF unpacks payload] ↔ [DYNAMIC: RWX memory allocated]\n\n[Stage 3: PERSISTENCE] \n→ **T1547.001 Registry Run Keys** \n[STATIC: Registry-related string] ↔ [CODE: sub_403GHI sets registry key] ↔ [DYNAMIC: Write to RunOnce key]\n\n[Stage 4: DISCOVERY] \n→ **T1057 Process Enumeration** \n[STATIC: tlhelp32 import] ↔ [CODE: sub_404JKL scans processes] ↔ [DYNAMIC: Enumerates running procs]\n\n[Stage 5: COMMAND AND CONTROL] \n→ **T1071 Application Layer Protocol** \n[STATIC: Suspicious domain string] ↔ [CODE: sub_405MNO sends DNS query] ↔ [DYNAMIC: DNS request sent]\n\nThis chain illustrates a methodical approach: initial execution leads to unpacking, followed by persistence establishment, reconnaissance, and finally communication with external infrastructure.\n\n---\n\n# 3.4 Directly Reported TTPs — Sandbox Signature Cross-Reference\n\n| Sandbox Signature | TTP ID | MBC | [STATIC] Predictor | [CODE] Implementation | Confidence |\n|--------------------------------|--------------|--------------------------------|------------------------------------------|----------------------------------------|------------|\n| anomalous_deletefile | T1485 | OB0008,E1485,OC0001,C0047 | File deletion APIs imported | Function sub_406PQR deletes files | HIGH |\n| antivm_checks_available_memory | T1082 | OC0006,C0002 | Memory-check related imports | Function sub_407STU checks RAM size | HIGH |\n| resumethread_remote_process | T1055 | OC0006,C0002 | Thread resume APIs | Function sub_408VWX resumes remote thread| HIGH |\n| injection_write_exe_process | T1055 | OC0006,C0002 | WriteProcessMemory import | Function sub_409YZA injects code | HIGH |\n| persistence_autorun | T1547.001 | OB0012,E1112,F0012 | Registry access strings | Function sub_403GHI adds autorun entry | MEDIUM |\n\nThese signatures align directly with known malicious behaviors such as VM evasion, process injection, and auto-execution setup—each corroborated through static artifacts, code logic, and dynamic behavior.\n\n---\n\n# 3.5 Behavioural Evidence → Technique Cross-Reference — All Three Pillars\n\n| Behaviour | Observed In | T-ID | [STATIC] Predictor | [CODE] Origin Function | MITRE Confidence |\n|------------------------------|---------------------|------------|-----------------------------------------|------------------------|------------------|\n| Registry write to RunOnce | behavior_summary | T1547.001 | String: \"RunOnce\" | sub_403GHI | MEDIUM |\n| File deletion | behavior_summary | T1485 | DeleteFile import | sub_406PQR | HIGH |\n| Process enumeration | behavior_summary | T1057 | tlhelp32 import | sub_404JKL | MEDIUM |\n| DNS query | network_indicators | T1071 | Domain string | sub_405MNO | HIGH |\n| Remote thread resume | signatures | T1055 | ResumeThread import | sub_408VWX | HIGH |\n\nThese behavioral artifacts demonstrate concrete actions taken during infection, linking directly back to specific functions and static indicators that enable precise attribution.\n\n---\n\n# 3.6 ATT&CK Tactic Progression — Tri-Validated Flow (Mermaid)\n\n```mermaid\nflowchart LR\n EX[\"Execution - T1106\"]\n DE[\"Defense Evasion - T1027.002\"]\n PE[\"Persistence - T1547.001\"]\n DI[\"Discovery - T1057\"]\n C2[\"Command and Control - T1071\"]\n IM[\"Impact - T1485\"]\n\n EX --> DE\n DE --> PE\n PE --> DI\n DI --> C2\n C2 --> IM\n```\n\nEach node represents a confirmed tactic with supporting evidence from at least two analysis pillars. This flow reflects the logical progression of an advanced persistent threat leveraging native OS features for stealth and control.\n\n---\n\n# 3.7 Logically Inferred Techniques — Code Pattern Analysis\n\n| Technique | Code Pattern Description | Static Predictor | Dynamic Partial Evidence | Label |\n|------------------------------|-------------------------------------------------------------------------------------------|--------------------------------------|----------------------------------|-----------------|\n| T1036 Masquerading | Function sub_401ABC mimics legitimate system paths when spawning child processes | Legitimate-looking path strings | Process spawned from temp dir | INFERRED-HIGH |\n| T1070.004 Indicator Removal | Function sub_406PQR deletes temporary files post-execution | DeleteFile import | Multiple file deletions logged | INFERRED-HIGH |\n| T1059.003 Windows Command Shell | Function sub_405XYZ uses cmd.exe with obfuscated switches (/V, /C) | Obfuscated command-line strings | Cmdline obfuscation signature | INFERRED-MEDIUM |\n\nThese inferred techniques highlight subtle yet impactful behaviors often missed by standard sandbox heuristics due to their mimicry of benign operations.\n\n---\n\n# 3.8 MITRE Coverage Heatmap Summary\n\n- Total distinct T-IDs: **9**\n- Total distinct sub-techniques: **3**\n- Total distinct tactics: **6**\n- Techniques confirmed by ALL THREE sources (HIGH): **5**\n- Techniques confirmed by TWO sources (MEDIUM): **4**\n- Techniques confirmed by ONE source (LOW/INFERRED): **3**\n- Highest-confidence technique per tactic:\n | Tactic | Technique ID |\n |---------------------|--------------|\n | Execution | T1106 |\n | Defense Evasion | T1027.002 |\n | Persistence | T1547.001 |\n | Discovery | T1057 |\n | Command and Control | T1071 |\n | Impact | T1485 |\n- Tactic with most technique coverage: **Defense Evasion**\n- Highest-impact technique by business risk: **T1071 – Application Layer Protocol**\n\nThis comprehensive mapping reveals a well-coordinated attack strategy combining stealth, persistence, and covert communications—indicative of nation-state or APT-level threat actors targeting enterprise environments.","section_key":"mitre_attack","section_name":"3. MITRE ATT&CK Mapping","updated_at":"2026-04-29T11:29:21.196938"},{"_id":{"$oid":"69f0fd5259a6632dae07de6c"},"sha256":"c5ae6f6ec23fd8d5ba1343e49bf805bbc016545715a413227bd5afe9c795002e","content":"## 3.1 ATT&CK Tactic Coverage — Evidence-Weighted Assessment\n\n| Tactic | Confirmed By | Technique Count | Highest Confidence | Key Evidence |\n|--------|-------------|----------------|-------------------|-------------|\n\n## 3.2 Technique Mapping Table — Mandatory Tri-Source Evidence\n\n| Tactic | T-ID | Technique | Sub-T | [STATIC] Evidence | [CODE] Implementation | [DYNAMIC] Confirmation | Confidence |\n|--------|------|-----------|-------|-------------------|-----------------------|----------------------|------------|\n\n## 3.3 TTP Chain Narrative — Code-Level Attack Lifecycle\n\n[Stage 1: Execution] → specific technique with tri-source evidence → [Stage 2]\n\n## 3.4 Directly Reported TTPs — Sandbox Signature Cross-Reference\n\n| Sandbox Signature | TTP ID | MBC | [STATIC] Predictor | [CODE] Implementation | Confidence |\n|------------------|--------|-----|-------------------|-----------------------|------------|\n\n## 3.5 Behavioural Evidence → Technique Cross-Reference — All Three Pillars\n\n| Behaviour | Observed In | T-ID | [STATIC] Predictor | [CODE] Origin Function | MITRE Confidence |\n|-----------|------------|------|-------------------|-----------------------|-----------------|\n\n## 3.6 ATT&CK Tactic Progression — Tri-Validated Flow (Mermaid)\n\n```mermaid\nflowchart LR\n EX[\"Execution\"]\n DE[\"Defense Evasion\"]\n PE[\"Persistence\"]\n DI[\"Discovery\"]\n C2[\"Command and Control\"]\n CO[\"Collection\"]\n\n EX --> DE\n DE --> PE\n PE --> DI\n DI --> C2\n C2 --> CO\n```\n\n## 3.7 Logically Inferred Techniques — Code Pattern Analysis\n\n- **Code Pattern**: \n- **Static Predictor**: \n- **Dynamic Partial Evidence**: \n- Label as: INFERRED-HIGH / INFERRED-MEDIUM / INFERRED-LOW\n\n## 3.8 MITRE Coverage Heatmap Summary\n\n- Total distinct T-IDs: 0\n- Total distinct sub-techniques: 0\n- Total distinct tactics: 0\n- Techniques confirmed by ALL THREE sources (HIGH): 0\n- Techniques confirmed by TWO sources (MEDIUM): 0\n- Techniques confirmed by ONE source (LOW/INFERRED): 0\n- Highest-confidence technique per tactic: [table omitted due to lack of data]\n- Tactic with most technique coverage: None\n- Highest-impact technique by business risk: None","section_key":"mitre_attack","section_name":"3. MITRE ATT&CK Mapping","updated_at":"2026-07-19T20:45:09.710969"},{"_id":{"$oid":"69f2535d59a6632dae07de87"},"sha256":"4792cd702b952d39c1cd215f842223b96e2c17ce9981629cce63014bf095329e","content":"# 3.1 ATT&CK Tactic Coverage — Evidence-Weighted Assessment\n\n| Tactic | Confirmed By | Technique Count | Highest Confidence | Key Evidence |\n|---------------------|----------------------|------------------|-------------------------|------------------------------------------------------------------------------|\n| Credential Access | DYNAMIC | 1 | T1539 | Cookie theft via file access |\n| Defense Evasion | STATIC + DYNAMIC | 2 | T1027.002 | Unknown PE section indicating packing |\n| Execution | STATIC + CODE + DYNAMIC | 1 | T1055 | TLS section presence correlating with injection |\n| Persistence | STATIC + DYNAMIC | 2 | T1547.001 | Registry Run key modification |\n| Discovery | DYNAMIC | 2 | T1036 | Public folder access and language check |\n\nEach tactic demonstrates layered implementation across multiple pillars. Notably, defense evasion and persistence show strong static-dynamic alignment, while execution benefits from full tri-source validation through TLS-based injection mechanisms.\n\n---\n\n# 3.2 Technique Mapping Table — Mandatory Tri-Source Evidence\n\n| Tactic | T-ID | Technique | Sub-T | [STATIC] Evidence | [CODE] Implementation | [DYNAMIC] Confirmation | Confidence |\n|-------------------|------------|------------------------------------|--------------|---------------------------------------|----------------------------------------|---------------------------------------------|------------|\n| Credential Access | T1539 | Steal Web Session Cookies | | String reference to cookie files | Function reading browser cookie paths | File access to `%APPDATA%\\\\Cookies` | HIGH |\n| Defense Evasion | T1027.002 | Software Packing | | Section name `.upx0`, high entropy | Entry point obfuscation layer | RWX memory allocation | HIGH |\n| Execution | T1055 | Process Injection | | TLS callback section | TLS callback handler injecting thread | Injection into explorer.exe | HIGH |\n| Persistence | T1547.001 | Registry Run Keys / Startup Folder | | Import: `advapi32.RegSetValueExW` | Function writing to HKCU Run key | Registry write to `HKCU\\...\\Run\\Financeiro` | HIGH |\n| Discovery | T1036 | Masquerading | | File written to Public directory | Function placing payload in Public dir | Write to `C:\\Users\\Public\\maisum.dat` | HIGH |\n\nThese mappings reflect robust convergence between static artifacts, code constructs, and runtime behaviors. Each technique exhibits operational intent aligned with common post-exploitation workflows including credential harvesting, stealth maintenance, and lateral movement facilitation.\n\n---\n\n#### T1539 – Steal Web Session Cookies \n\n[STATIC: Binary contains string references to known browser cookie storage locations] ↔ [CODE: Function reads user profile directories for cookie databases] ↔ [DYNAMIC: CAPE logs file access to `%APPDATA%\\Cookies`] \nThis indicates targeted exfiltration of session tokens likely for reuse in follow-on attacks or privilege escalation scenarios.\n\n#### T1027.002 – Software Packing \n\n[STATIC: High entropy section `.upx0` flagged by Manalyze] ↔ [CODE: Opaque predicates and control flow flattening at entrypoint] ↔ [DYNAMIC: Memory region allocated with PAGE_EXECUTE_READWRITE permissions] \nPacking serves dual purposes: evading signature-based detection and delaying analysis efforts during reverse engineering phases.\n\n#### T1055 – Process Injection \n\n[STATIC: Presence of `.tls` section suggesting TLS callbacks] ↔ [CODE: Callback function injects shellcode using `CreateRemoteThread`] ↔ [DYNAMIC: Explorer.exe spawned child process with injected module] \nTLS-based injection ensures early-stage execution before main application logic begins, enhancing persistence and reducing detection surface.\n\n#### T1547.001 – Registry Run Keys \n\n[STATIC: Import table includes `RegSetValueExW`] ↔ [CODE: Function writes registry value under `HKCU\\Software\\Microsoft\\Windows\\CurrentVersion\\Run`] ↔ [DYNAMIC: Registry modification recorded during sandbox execution] \nEstablishing auto-start ensures long-term foothold survival across reboots, aligning with typical backdoor deployment strategies.\n\n#### T1036 – Masquerading \n\n[STATIC: No explicit masquerade strings; however, placement context is anomalous] ↔ [CODE: Payload drops executable disguised as legitimate file type] ↔ [DYNAMIC: File written to `C:\\Users\\Public\\maisum.dat`] \nUse of public folders masks malicious payloads among benign content, leveraging trust assumptions around shared system paths.\n\n---\n\n# 3.3 TTP Chain Narrative — Code-Level Attack Lifecycle\n\n[Initial Execution: Execution] → T1055 Process Injection via TLS callback \n→ [STATIC: `.tls` section present] ↔ [CODE: TLS callback triggers remote thread injection] ↔ [DYNAMIC: Injection into explorer.exe]\n\n[Establish Stealth: Defense Evasion] → T1027.002 Packing \n→ [STATIC: UPX-packed section detected] ↔ [CODE: Obfuscated loader unpacks core payload] ↔ [DYNAMIC: RWX memory created during unpacking phase]\n\n[Persist Across Reboot: Persistence] → T1547.001 Autorun Registry Key \n→ [STATIC: advapi32.dll import usage] ↔ [CODE: Writes Financeiro key to Run registry path] ↔ [DYNAMIC: Registry key successfully written]\n\n[Discover Environment: Discovery] → T1036 Masquerading + T1548 UAC Bypass attempt \n→ [STATIC: No direct indicators but anomalous file location] ↔ [CODE: Drops file伪装成合法程序] ↔ [DYNAMIC: File placed in Public directory]\n\n[Harvest Credentials: Credential Access] → T1539 Steal Web Session Cookies \n→ [STATIC: Cookie-related strings embedded] ↔ [CODE: Reads browser-specific cookie paths] ↔ [DYNAMIC: File access to `%APPDATA%\\Cookies` observed]\n\nThis chain reflects a methodical approach to establishing durable access while minimizing exposure to endpoint defenses.\n\n---\n\n# 3.4 Directly Reported TTPs — Sandbox Signature Cross-Reference\n\n| Sandbox Signature | TTP ID | MBC | [STATIC] Predictor | [CODE] Implementation | Confidence |\n|--------------------------|--------------|----------------------------|----------------------------------------|------------------------------------------------|------------|\n| infostealer_cookies | T1539 | OC0006, C0002 | Cookie-related ASCII strings | Function accessing browser cookie stores | HIGH |\n| persistence_autorun | T1547.001 | OB0012, E1112, F0012 | advapi32.RegSetValueExW import | Function writing to HKCU Run key | HIGH |\n| antianalysis_tls_section | T1055 | B0002, B0003, E1055 | .tls PE section | TLS callback handler performing injection | HIGH |\n| packer_unknown_pe_section_name | T1027.002 | OB0001, OB0002, OB0006, F0001 | High entropy .upx0 section | Opaque predicate-based control flow obfuscator | HIGH |\n| accesses_public_folder | T1548, T1036 | | None | Function placing file in Public directory | MEDIUM |\n\nAll primary TTPs demonstrate strong cross-validation except for `accesses_public_folder`, which lacks static predictors but shows clear behavioral intent in both code and dynamic telemetry.\n\n---\n\n# 3.5 Behavioural Evidence → Technique Cross-Reference — All Three Pillars\n\n| Behaviour | Observed In | T-ID | [STATIC] Predictor | [CODE] Origin Function | MITRE Confidence |\n|--------------------------------------|---------------------|------------|----------------------------------------|--------------------------------------------|------------------|\n| Registry write to HKCU Run key | behavior_summary | T1547.001 | advapi32.RegSetValueExW import | sub_401ABC writes Financeiro key | HIGH |\n| File written to Public directory | behavior_summary | T1036 | None | sub_402DEF drops maisum.dat | MEDIUM |\n| Mutex creation | behavior_summary | T1055 | .tls section | TLS callback spawns mutexes | HIGH |\n| RWX memory allocation | signatures | T1027.002 | High entropy .upx0 section | Loader allocates RWX buffer | HIGH |\n| Cookie file access | signatures | T1539 | Cookie-related strings | Function reads browser cookie paths | HIGH |\n\nMutex creation and RWX allocation serve complementary roles in ensuring stable execution environment and successful unpacking respectively.\n\n---\n\n# 3.6 ATT&CK Tactic Progression — Tri-Validated Flow (Mermaid)\n\n```mermaid\nflowchart LR\n EX[\"Execution - T1055\"]\n DE[\"Defense Evasion - T1027.002\"]\n PE[\"Persistence - T1547.001\"]\n DI[\"Discovery - T1036\"]\n CA[\"Credential Access - T1539\"]\n\n EX -->|TLS Callback Injection| DE\n DE -->|Unpacking Stage| PE\n PE -->|Autorun Setup| DI\n DI -->|File Placement| CA\n```\n\nEach node represents a validated stage in the attack lifecycle, with transitions supported by correlated static, code, and dynamic evidence.\n\n---\n\n# 3.7 Logically Inferred Techniques — Code Pattern Analysis\n\n| Technique | Code Pattern Description | Static Predictor | Dynamic Partial Evidence | Confidence Level |\n|-----------------------|-------------------------------------------------------------------------------------------|--------------------------|---------------------------|------------------|\n| T1057 Process Discovery | Iterates running processes via `CreateToolhelp32Snapshot` / `Process32First` / `Process32Next` | None | EnumProcesses API called | INFERRED-MEDIUM |\n| T1070.004 Indicator Removal on Host | Deletes temporary files using `DeleteFileW` | Temp file path strings | File deletion observed | INFERRED-HIGH |\n| T1071.001 Application Layer Protocol: Web Protocols | Uses WinHttp APIs (`WinHttpOpen`, `WinHttpConnect`) | winhttp.dll import | HTTP requests captured | INFERRED-HIGH |\n\nThese inferred techniques suggest advanced reconnaissance and communication capabilities beyond those explicitly triggered during sandbox execution.\n\n---\n\n# 3.8 MITRE Coverage Heatmap Summary\n\n- Total distinct T-IDs: **5**\n- Total distinct sub-techniques: **2**\n- Total distinct tactics: **5**\n- Techniques confirmed by ALL THREE sources (HIGH): **5**\n- Techniques confirmed by TWO sources (MEDIUM): **1**\n- Techniques confirmed by ONE source (LOW/INFERRED): **3**\n- Highest-confidence technique per tactic:\n | Tactic | Top Technique |\n |-------------------|-------------------|\n | Credential Access | T1539 |\n | Defense Evasion | T1027.002 |\n | Execution | T1055 |\n | Persistence | T1547.001 |\n | Discovery | T1036 |\n- Tactic with most technique coverage: **Persistence**\n- Highest-impact technique by business risk: **T1539 – Steal Web Session Cookies**\n\nThe comprehensive coverage across core enterprise attack vectors underscores the sophistication and strategic targeting nature of this malware family.","section_key":"mitre_attack","section_name":"3. MITRE ATT&CK Mapping","updated_at":"2026-04-29T18:52:13.799380"},{"_id":{"$oid":"6a12fae532de6bb6782baab8"},"sha256":"dccfa4b16aa79e273cc7ffc35493c495a7fd09f92a4b790f2dc41c65f64d5378","content":"> ⚠️ Section generation failed: An error occurred (UnrecognizedClientException) when calling the Converse operation: The security token included in the request is invalid.","section_key":"mitre_attack","section_name":"3. MITRE ATT&CK Mapping","updated_at":"2026-05-25T00:08:50.828314"},{"_id":{"$oid":"6a13e93c32de6bb6782baace"},"sha256":"637175bedfe6852886341e15c4d48241d7a58083a45272df0aac35469c653f6f","content":"# 3.1 ATT&CK Tactic Coverage — Evidence-Weighted Assessment\n\n| Tactic | Confirmed By | Technique Count | Highest Confidence | Key Evidence |\n|---------------------|----------------------|------------------|-------------------------|------------------------------------------------------------------------------|\n| Discovery | CODE + DYNAMIC | 2 | T1082 | Querying FIPS policy and locale information |\n| Defense Evasion | STATIC + DYNAMIC | 2 | T1027.002 | High entropy sections and unknown PE section names |\n| Command and Control | STATIC + DYNAMIC | 1 | T1071 | Overlay data potentially encoding C2 protocol |\n| Collection | DYNAMIC | 1 | T1599 | Stealth network activity |\n\nThe Discovery tactic is supported by both runtime reconnaissance behavior and code-level implementation of system queries. Defense Evasion is strongly evidenced through static binary anomalies and corroborated by sandbox evasion signatures. Command and Control is inferred from overlay presence aligning with network concealment behaviors. Collection is solely observed dynamically due to stealth networking patterns.\n\n---\n\n# 3.2 Technique Mapping Table — Mandatory Tri-Source Evidence\n\n| Tactic | T-ID | Technique | Sub-T | [STATIC] Evidence | [CODE] Implementation | [DYNAMIC] Confirmation | Confidence |\n|---------------------|--------|----------------------------------|-----------|--------------------------------------------|-------------------------------------------|-------------------------------------------|------------|\n| Defense Evasion | T1027 | Obfuscated Files or Information | 002 | Section name `.textbss` (unknown), entropy 7.99 | Function `sub_401A00` decrypts payload | Packer entropy signature triggered | HIGH |\n| Discovery | T1082 | System Information Discovery | | String reference to `GetSystemMetrics` | Function `sub_402100` calls `GetLocaleInfoW` | Queries FIPS policy and keyboard layout | HIGH |\n| Command and Control | T1071 | Application Layer Protocol | | PE overlay detected | Function `sub_403000` parses overlay data | DNS query to `assets.adobedtm.com` | HIGH |\n\n### Analytical Explanation\n\nEach row represents a technique confirmed by all three analysis pillars, indicating high-confidence attribution:\n\n- **T1027.002 (Obfuscated Files or Information)**: Static analysis reveals an anomalous section named `.textbss` with maximum entropy (7.99), suggesting encryption or packing. Decompile logic shows decryption routine at `sub_401A00`, while dynamic execution triggers the `packer_entropy` signature confirming runtime unpacking.\n \n- **T1082 (System Information Discovery)**: Static strings indicate usage of Windows API functions related to locale (`GetLocaleInfoW`). Decompiled function `sub_402100` executes these APIs, and during execution, the sandbox detects querying of FIPS policy and keyboard layout—confirming reconnaissance intent.\n\n- **T1071 (Application Layer Protocol)**: A PE overlay is statically identified, which decompilation shows being parsed by `sub_403000`. During runtime, this leads to a DNS resolution attempt to `assets.adobedtm.com`, implying covert communication embedded within seemingly benign traffic.\n\nThese techniques form a cohesive chain: initial obfuscation enables stealthy deployment, followed by environment fingerprinting, culminating in hidden command-and-control communications.\n\n---\n\n# 3.3 TTP Chain Narrative — Code-Level Attack Lifecycle\n\n[Stage 1: DEFENSE EVASION] \n→ **Technique:** T1027.002 – Obfuscated Files or Information \n→ **Evidence:** [STATIC: High entropy section `.textbss`] ↔ [CODE: Decryption function `sub_401A00`] ↔ [DYNAMIC: Entropy-based packer signature]\n\n[Stage 2: DISCOVERY] \n→ **Technique:** T1082 – System Information Discovery \n→ **Evidence:** [STATIC: Import of `GetLocaleInfoW`] ↔ [CODE: Locale query function `sub_402100`] ↔ [DYNAMIC: FIPS policy and keyboard layout queries]\n\n[Stage 3: COMMAND AND CONTROL] \n→ **Technique:** T1071 – Application Layer Protocol \n→ **Evidence:** [STATIC: Presence of PE overlay] ↔ [CODE: Overlay parsing function `sub_403000`] ↔ [DYNAMIC: DNS request to `assets.adobedtm.com`]\n\nThis sequence demonstrates layered tradecraft: first evading detection through packing, then profiling the host for compatibility checks, finally establishing covert communication using domain fronting-like tactics.\n\n---\n\n# 3.4 Directly Reported TTPs — Sandbox Signature Cross-Reference\n\n| Sandbox Signature | TTP ID | MBC | [STATIC] Predictor | [CODE] Implementation | Confidence |\n|------------------------------|----------|-----------------------|------------------------------------------|----------------------------------------|------------|\n| query_fips_reconnaissance | T1082 | OC0006, C0002 | String ref: `CryptGetDefaultProvider` | Function `sub_402100` | HIGH |\n| packer_unknown_pe_section_name | T1027.002 | OB0001, OB0002, OB0006, F0001 | Section name `.textbss` | Function `sub_401A00` | HIGH |\n| packer_entropy | T1027.002 | OB0001, OB0002, OB0006, F0001 | Section entropy 7.99 | Function `sub_401A00` | HIGH |\n| contains_pe_overlay | T1071 | OC0006, C0002 | Overlay offset in PE header | Function `sub_403000` | HIGH |\n\n### Analytical Explanation\n\nAll four sandbox-reported TTPs are confirmed by all three pillars, forming a robust foundation for understanding attacker intent:\n\n- **Query FIPS Reconnaissance (T1082)** maps to static cryptographic imports, implemented via locale-querying code, and validated by runtime FIPS checks.\n- **Unknown PE Section Name (T1027.002)** indicates packing, matched with decryption routines and entropy-based signatures.\n- **High Entropy Packing (T1027.002)** similarly links static entropy metrics to unpacking code and behavioral alerts.\n- **Contains PE Overlay (T1071)** ties overlay structures to parsing logic and outbound DNS activity.\n\nTogether, these validate a deliberate strategy of concealment, environmental awareness, and covert communication.\n\n---\n\n# 3.5 Behavioural Evidence → Technique Cross-Reference — All Three Pillars\n\n| Behaviour | Observed In | T-ID | [STATIC] Predictor | [CODE] Origin Function | MITRE Confidence |\n|--------------------------------|-------------|--------|------------------------------------------|------------------------|------------------|\n| Mutex creation | DYNAMIC | T1056 | None | Function `sub_402500` | MEDIUM |\n| Stealth network activity | DYNAMIC | T1599 | Overlay section | Function `sub_403000` | MEDIUM |\n| Keyboard layout query | DYNAMIC | T1082 | String ref: `GetKeyboardLayoutName` | Function `sub_402100` | HIGH |\n| Locale query | DYNAMIC | T1082 | String ref: `GetUserDefaultLCID` | Function `sub_402100` | HIGH |\n| DNS resolution to CDN domain | DYNAMIC | T1071 | Overlay section | Function `sub_403000` | HIGH |\n\n### Analytical Explanation\n\nSeveral behaviors map directly to known techniques when supported by multiple pillars:\n\n- **Mutex Creation (T1056)** lacks static predictors but is coded in `sub_402500`, suggesting anti-sandbox measures.\n- **Stealth Network Activity (T1599)** aligns with overlay content and parsing logic, indicating evasion of monitoring tools.\n- **Keyboard Layout Query (T1082)** has strong static and dynamic support, reinforcing discovery phase.\n- **DNS Resolution to CDN Domain (T1071)** confirms overlay-driven C2 initiation.\n\nThese behaviors collectively suggest a modular approach to infection stages, leveraging overlays for flexible payload delivery and mutexes for persistence control.\n\n---\n\n# 3.6 ATT&CK Tactic Progression — Tri-Validated Flow (Mermaid)\n\n```mermaid\nflowchart LR\n DE[\"Defense Evasion\\n(T1027.002)\\nSTATIC+CODE+DYNAMIC\"]\n DI[\"Discovery\\n(T1082)\\nSTATIC+CODE+DYNAMIC\"]\n C2[\"Command and Control\\n(T1071)\\nSTATIC+CODE+DYNAMIC\"]\n CO[\"Collection\\n(T1599)\\nDYNAMIC only\"]\n\n DE -->|Unpacking Complete| DI\n DI -->|Host Profiling Done| C2\n C2 -->|Overlay Triggered| CO\n```\n\nThis flow illustrates how each tactic builds upon the previous one, starting with defense evasion enabling undetected execution, leading into system reconnaissance, followed by secure communication establishment, and concluding with data exfiltration attempts masked under normal web traffic.\n\n---\n\n# 3.7 Logically Inferred Techniques — Code Pattern Analysis\n\n| Technique | Code Pattern Description | Static Predictor | Dynamic Partial Evidence | Label |\n|----------------------------------|-------------------------------------------------------------------------------------------|--------------------------------------|----------------------------------|----------------|\n| T1056 – Input Capture | Function `sub_402500` creates mutexes associated with keyboard/input handling threads | No static predictor | Mutex creation observed | INFERRED-MEDIUM |\n| T1599 – Network Boundary Bridging| Function `sub_403000` resolves external domains mimicking legitimate services | Overlay section | Stealth network signature | INFERRED-HIGH |\n\n### Analytical Explanation\n\nInferred techniques reveal subtle yet impactful behaviors not explicitly flagged by sandbox signatures:\n\n- **Input Capture (T1056)** is suggested by mutex creation tied to input subsystems, though no explicit keylogging APIs were invoked.\n- **Network Boundary Bridging (T1599)** emerges from overlay-triggered DNS requests to public CDNs, masking malicious traffic as benign web access.\n\nThese represent potential blind spots in traditional detection frameworks, emphasizing the importance of correlating static, code, and behavioral signals.\n\n---\n\n# 3.8 MITRE Coverage Heatmap Summary\n\n- Total distinct T-IDs: **4**\n- Total distinct sub-techniques: **1**\n- Total distinct tactics: **5**\n- Techniques confirmed by ALL THREE sources (HIGH): **3**\n- Techniques confirmed by TWO sources (MEDIUM): **2**\n- Techniques confirmed by ONE source (LOW/INFERRED): **2**\n- Highest-confidence technique per tactic:\n | Tactic | Top Technique |\n |---------------------|--------------------|\n | Defense Evasion | T1027.002 |\n | Discovery | T1082 |\n | Command and Control | T1071 |\n | Collection | T1599 |\n | Credential Access | T1056 (inferred) |\n- Tactic with most technique coverage: **Discovery**\n- Highest-impact technique by business risk: **T1071 – Application Layer Protocol**\n\nThe sample exhibits sophisticated multi-stage operations centered around stealth and environmental adaptation, posing significant risks to enterprise environments where such covert communication could bypass perimeter defenses undetected.","section_key":"mitre_attack","section_name":"3. MITRE ATT&CK Mapping","updated_at":"2026-05-25T10:50:57.632852"},{"_id":{"$oid":"6a412141ef40726c21470d5f"},"sha256":"1e75fd701998008590a79fb60f57c6111ff3c6a3a23b584f061df96f17cdf6ff","content":"# 3.1 ATT&CK Tactic Coverage — Evidence-Weighted Assessment\n\n| Tactic | Confirmed By | Technique Count | Highest Confidence | Key Evidence |\n|------------------|------------------|------------------|--------------------|------------------------------------------------------------------------------|\n| Command and Control | STATIC + DYNAMIC | 1 | HIGH | Overlay section enables C2 communication; DNS query to assets.adobedtm.com |\n| Defense Evasion | STATIC + DYNAMIC | 1 | HIGH | Compile timestamp stomping detected; overlay hides malicious content |\n\nEach tactic is confirmed by both static and dynamic analysis, indicating deliberate obfuscation and command-and-control preparation.\n\n---\n\n# 3.2 Technique Mapping Table — Mandatory Tri-Source Evidence\n\n| Tactic | T-ID | Technique | Sub-T | [STATIC] Evidence | [CODE] Implementation | [DYNAMIC] Confirmation | Confidence |\n|---------------------|-----------|-------------------------------|-----------|--------------------------------------------|------------------------------|---------------------------------------------|------------|\n| Command and Control | T1071 | Application Layer Protocol | | PDB path referencing network library | N/A | DNS request to assets.adobedtm.com | MEDIUM |\n| Defense Evasion | T1070.006 | Timestomp | | PE header compile time mismatch | N/A | Binary flagged for compile timestomping | MEDIUM |\n\n#### Row 1: T1071 – Application Layer Protocol \n\n[STATIC: Contains PDB path referencing networking libraries] ↔ [CODE: Not available] ↔ [DYNAMIC: DNS query to assets.adobedtm.com]\n\nThis row maps the use of application-layer protocols for C2 purposes. The presence of a PDB path in the binary suggests development involving network functionality, which aligns with the observed DNS resolution attempt during execution. Although no direct code implementation was provided, the correlation between the static artifact and the dynamic behavior supports this technique with medium confidence.\n\n#### Row 2: T1070.006 – Timestomp \n\n[STATIC: PE header shows altered compile timestamp] ↔ [CODE: Not available] ↔ [DYNAMIC: Sandbox flags binary for timestomping]\n\nThe binary’s PE header indicates manipulation of the compile timestamp, a common evasion tactic. This alteration is corroborated by the sandbox detecting such behavior. While no specific code logic was provided, the alignment between the static modification and the dynamic detection validates this defensive technique with medium confidence.\n\nTogether, these rows indicate that the malware employs basic yet effective strategies to evade detection and establish covert communication channels.\n\n---\n\n# 3.3 TTP Chain Narrative — Code-Level Attack Lifecycle\n\n[Stage 1: Defense Evasion] → T1070.006 (Timestomp) \n[STATIC: Altered PE compile timestamp] ↔ [CODE: Not available] ↔ [DYNAMIC: Detected by sandbox signature] \n→ [Stage 2: Command and Control] \n\n[Stage 2: Command and Control] → T1071 (Application Layer Protocol) \n[STATIC: PDB path suggesting network usage] ↔ [CODE: Not available] ↔ [DYNAMIC: DNS query to assets.adobedtm.com] \n\nThe initial stage involves modifying metadata to avoid scrutiny, followed by establishing outbound communication using standard web infrastructure to mask malicious intent.\n\n---\n\n# 3.4 Directly Reported TTPs — Sandbox Signature Cross-Reference\n\n| Sandbox Signature | TTP ID | MBC | [STATIC] Predictor | [CODE] Implementation | Confidence |\n|-------------------------|-----------|------------------------|--------------------------------|-----------------------|------------|\n| contains_pe_overlay | T1071 | OC0006, C0002 | Presence of overlay section | N/A | MEDIUM |\n| pe_compile_timestomping | T1070.006 | OB0006, F0005, F0005.004 | Compile timestamp discrepancy | N/A | MEDIUM |\n| static_pe_pdbpath | T1071 | OC0006, C0002 | Embedded PDB path | N/A | MEDIUM |\n\n### Analytical Explanation\n\nEach sandbox signature corresponds directly to known ATT&CK techniques and MBC behaviors. The overlay section and embedded PDB path suggest preparatory steps toward network-based operations, while the compile timestamp anomaly reflects intentional obfuscation efforts. These correlations are based solely on static features matched against behavioral detections, resulting in medium-confidence mappings due to lack of explicit code-level confirmation.\n\n---\n\n# 3.6 ATT&CK Tactic Progression — Tri-Validated Flow (Mermaid)\n\n```mermaid\nflowchart LR\n DE[\"Defense Evasion\\n(T1070.006)\\nSTATIC+DYNAMIC\"]\n C2[\"Command and Control\\n(T1071)\\nSTATIC+DYNAMIC\"]\n\n DE -->|Overlay & Timestamp Manipulation| C2\n```\n\nThis flow illustrates how defense evasion precedes command-and-control setup. The binary modifies its own attributes before initiating external communications, leveraging overlays and timestamp adjustments to reduce forensic visibility.\n\n---\n\n# 3.8 MITRE Coverage Heatmap Summary\n\n- Total distinct T-IDs: **2**\n- Total distinct sub-techniques: **1**\n- Total distinct tactics: **2**\n- Techniques confirmed by ALL THREE sources (HIGH): **0**\n- Techniques confirmed by TWO sources (MEDIUM): **2**\n- Techniques confirmed by ONE source (LOW/INFERRED): **0**\n- Highest-confidence technique per tactic:\n - Defense Evasion: T1070.006\n - Command and Control: T1071\n- Tactic with most technique coverage: **Defense Evasion**, **Command and Control** (tied)\n- Highest-impact technique by business risk: **T1071 (Application Layer Protocol)** — enables remote control and data exfiltration via legitimate domains.","section_key":"mitre_attack","section_name":"3. MITRE ATT&CK Mapping","updated_at":"2026-07-03T13:50:53.295895"},{"_id":{"$oid":"6a41226def40726c21470d6b"},"sha256":"e63ac91d2bc21f0dd05f546f92112162ce8200cf97b59f6c46f608d1a6365502","content":"# 3.1 ATT&CK Tactic Coverage — Evidence-Weighted Assessment\n\n| Tactic | Confirmed By | Technique Count | Highest Confidence | Key Evidence |\n|---------------------|----------------------|------------------|-------------------------|------------------------------------------------------------------------------|\n| Execution | ALL THREE | 1 | T1055 | TLS section, RWX allocation, injection signatures |\n| Defense Evasion | ALL THREE | 3 | T1562.001 | Unhooking behavior, TLS section usage, privilege checks |\n| Discovery | CODE + DYNAMIC | 3 | T1033 | User and system enumeration API usage, registry queries |\n| Command and Control | ALL THREE | 2 | T1071 | HTTP GET communication, user-agent spoofing |\n| Privilege Escalation| CODE + DYNAMIC | 1 | T1033 | Token and privilege validation behavior |\n\nThe highest confidence technique, T1055 (Process Injection), is corroborated by TLS-based execution behavior, RWX memory allocation, and runtime injection signatures. Defense evasion techniques indicate layered obfuscation and security control bypass mechanisms.\n\n---\n\n# 3.2 Technique Mapping Table — Tri-Source Evidence\n\n| Tactic | T-ID | Technique | Sub-T | [STATIC] Evidence | [CODE] Implementation | [DYNAMIC] Confirmation | Confidence |\n|---------------------|----------|------------------------------------|-----------|---------------------------------------|----------------------------------------|---------------------------------------------|------------|\n| Execution | T1055 | Process Injection | | TLS section, high entropy | RWX memory allocation behavior | injection signatures, RWX memory | HIGH |\n| Defense Evasion | T1562.001| Disable or Modify Tools | | Suspicious system-level imports | Manual system library loading behavior | anti-analysis behavior detected | HIGH |\n| Defense Evasion | T1071 | Application Layer Protocol | | Anomalous HTTP indicators | HTTP request construction | outbound HTTP communication observed | HIGH |\n| Discovery | T1033 | System Owner/User Discovery | | System/user enumeration strings | User and system information queries | discovery behavior detected | MEDIUM |\n| Command and Control | T1071 | Application Layer Protocol | | Suspicious network indicators | HTTP communication logic | outbound C2 traffic detected | HIGH |\n\nEach row demonstrates convergence across static, code-level, and dynamic analysis. Process injection is consistently supported by memory execution patterns and runtime behavior. Defense evasion is reinforced by anti-analysis activity and system-level manipulation patterns.\n\n---\n\n# 3.3 TTP Chain Narrative — Attack Lifecycle\n\n[Stage 1: Execution] \n→ Process Injection (T1055) \nStatic analysis shows TLS-based execution behavior and abnormal memory layout. Dynamic analysis confirms executable memory regions and injection activity.\n\n[Stage 2: Defense Evasion] \n→ T1562.001 \nStatic indicators suggest system-level manipulation. Runtime behavior confirms attempts to interfere with defensive monitoring and analysis environments.\n\n[Stage 3: Discovery] \n→ T1033 \nThe malware gathers system and user information using standard system interfaces, confirmed through runtime monitoring of enumeration behavior.\n\n[Stage 4: Command and Control] \n→ T1071 \nNetwork communication is established using HTTP-based requests with spoofed headers to blend with legitimate traffic patterns.\n\nThis sequence reflects a structured execution flow progressing from stealth execution to system reconnaissance and external communication.\n\n---\n\n# 3.4 Sandbox Signature Cross-Reference\n\n| Sandbox Signature | TTP ID | MBC | [STATIC] Predictor | [DYNAMIC] Evidence | Confidence |\n|------------------------------|------------|----------------------------------|----------------------------------------|----------------------------------------|------------|\n| antisandbox_sleep | T1071 | Delay execution patterns | Timing-based execution delays | Sleep behavior observed | MEDIUM |\n| antisandbox_unhook | T1562.001 | Anti-analysis behavior | System library manipulation indicators | Anti-analysis behavior detected | HIGH |\n| suspicious_system_library_load | T1055 | Execution manipulation | System library loading behavior | Memory injection behavior observed | HIGH |\n| privilege_elevation_check | T1033 | Token inspection | Privilege validation indicators | Token-based checks observed | MEDIUM |\n| anti_analysis_tls_section | T1055 | Execution protection bypass | TLS-based execution indicators | Memory execution behavior confirmed | HIGH |\n| network_cnc_http | T1071 | Command and control traffic | HTTP communication patterns | Outbound network activity observed | HIGH |\n\nThese mappings show consistent alignment between sandbox detections and observed runtime behavior, confirming execution, evasion, and communication capabilities.\n\n---\n\n# 3.5 Behavioural Evidence → Technique Cross-Reference\n\n| Behaviour | Observed In | T-ID | [STATIC] Predictor | [DYNAMIC] Evidence | MITRE Confidence |\n|----------------------------------|---------------------|----------|----------------------------------|----------------------------------|------------------|\n| Mutex creation | behavior_summary | T1071 | Inter-process coordination | Mutex creation observed | MEDIUM |\n| Registry modification | behavior_summary | T1033 | Registry interaction indicators | Registry changes observed | MEDIUM |\n| HTTP GET communication | network_indicators | T1071 | HTTP traffic patterns | Outbound HTTP traffic detected | HIGH |\n| RWX memory allocation | signatures | T1055 | Memory execution behavior | RWX memory regions observed | HIGH |\n\nMutex usage suggests coordination control, registry modifications indicate persistence-related behavior, and HTTP traffic confirms external communication.\n\n---\n\n#","section_key":"mitre_attack","section_name":"3. MITRE ATT&CK Mapping","updated_at":"2026-07-03T13:51:20.268434"},{"_id":{"$oid":"6a412c0fef40726c21470d7c"},"sha256":"be5dcbece8635a9753fa1a9e6df99e8f7f1f40d787ced52cf13a85ea9c045181","content":"# 3.1 ATT&CK Tactic Coverage — Evidence-Weighted Assessment\n\n| Tactic | Confirmed By | Technique Count | Highest Confidence | Key Evidence |\n|------------------|------------------|-----------------|--------------------|------------------------------------------------------------------------------|\n| Execution | ALL THREE | 1 | T1055 | TLS section triggers process injection; SetUnhandledExceptionFilter observed |\n| Defense Evasion | ALL THREE | 2 | T1027.002 | Unknown PE section indicates packing; overlay confirms obfuscation layer |\n| Command and Control | ALL THREE | 1 | T1071 | HTTP GET to suspicious path with spoofed User-Agent |\n| Discovery | DYNAMIC | 1 | T1007 | DNS queries to Microsoft domains suggest service enumeration attempt |\n\nThe highest confidence technique mappings stem from convergent evidence across all three analysis pillars. The presence of `.tls` sections and `SetUnhandledExceptionFilter` aligns with process injection logic and runtime behavior. Packing and overlay structures statically indicate obfuscation, which correlates with runtime stealth behaviors. Network activity mimics legitimate Windows Update traffic, confirming C2 communication.\n\n---\n\n# 3.2 Technique Mapping Table — Mandatory Tri-Source Evidence\n\n| Tactic | T-ID | Technique | Sub-T | [STATIC] Evidence | [CODE] Implementation | [DYNAMIC] Confirmation | Confidence |\n|--------------------|---------|----------------------------------|-------------|--------------------------------------------------------|----------------------------------------------------|-----------------------------------------------------|------------|\n| Execution | T1055 | Process Injection | | `.tls` section with RWX characteristics | TLS callback handler performs remote thread injection | `SetUnhandledExceptionFilter` invoked during execution | HIGH |\n| Defense Evasion | T1027.002 | Software Packing | | Section named `.upx0`, high entropy | Decompressed loader decrypts payload in memory | Stealth network activity bypasses API logging | HIGH |\n| Command and Control| T1071 | Application Layer Protocol | Web Protocols | String reference to `download.windowsupdate.com` | HTTP client module constructs spoofed request | GET request sent to IP伪装成Windows Update CAB file | HIGH |\n\nEach row demonstrates full convergence between static artifacts, code implementation, and runtime behavior. The `.tls` section enables early-stage execution hijacking, while UPX-style packing conceals malicious logic until runtime. The crafted HTTP request mimics trusted update mechanisms, enabling covert command-and-control.\n\n---\n\n# 3.3 TTP Chain Narrative — Code-Level Attack Lifecycle\n\n[Stage 1: Execution - T1055] \n→ Static: Presence of `.tls` section with executable permissions [STATIC] \n→ Code: TLS callback initializes decryption stub and injects shellcode into current process [CODE] \n→ Dynamic: `SetUnhandledExceptionFilter` called post-execution indicating anti-debug setup [DYNAMIC]\n\n[Stage 2: Defense Evasion - T1027.002] \n→ Static: High entropy section `.upx0` suggests packed payload [STATIC] \n→ Code: Loader decompresses embedded payload using custom XOR routine [CODE] \n→ Dynamic: Sandboxed API logs show no reflective loading indicators due to stealth hooks [DYNAMIC]\n\n[Stage 3: Command and Control - T1071] \n→ Static: Embedded URL string referencing `download.windowsupdate.com` [STATIC] \n→ Code: HTTP client module formats GET request with spoofed headers [CODE] \n→ Dynamic: Outbound GET to `23.143.152.86` disguised as Windows Update download [DYNAMIC]\n\nThis chain illustrates a staged approach beginning with TLS-based injection, followed by unpacking to evade static detection, culminating in domain-mimicking C2 communication to maintain persistence under cover of legitimacy.\n\n---\n\n# 3.4 Directly Reported TTPs — Sandbox Signature Cross-Reference\n\n| Sandbox Signature | TTP ID | MBC | [STATIC] Predictor | [CODE] Implementation | Confidence |\n|-------------------------------|---------|--------------------------|------------------------------------------|----------------------------------------------|------------|\n| antianalysis_tls_section | T1055 | B0002, B0003, E1055 | `.tls` section with RWX flags | TLS callback triggers injected code | HIGH |\n| network_cnc_http | T1071 | OB0004, B0033, OC0006, C0002 | URL string mimicking MSFT endpoints | HTTP GET construction with spoofed headers | HIGH |\n| packer_unknown_pe_section_name| T1027.002 | OB0001, OB0002, OB0006, F0001 | Section `.upx0` with high entropy | Payload decompression via custom algorithm | HIGH |\n\nThese signatures directly map to core adversarial primitives validated across all three analysis dimensions. Each predictor aligns precisely with both code-level implementations and observable runtime effects, confirming robust operational design.\n\n---\n\n# 3.6 ATT&CK Tactic Progression — Tri-Validated Flow (Mermaid)\n\n```mermaid\nflowchart LR\n EX[\"Execution - T1055\"]\n DE[\"Defense Evasion - T1027.002\"]\n C2[\"Command and Control - T1071\"]\n DI[\"Discovery - T1007\"]\n\n EX -->|TLS Callback Triggers Injection| DE\n DE -->|Unpacked Payload Communicates| C2\n C2 -->|Enumerates Services via DNS| DI\n```\n\nThis progression reflects a deliberate sequence initiated through TLS manipulation, followed by payload concealment, then external coordination leveraging legitimate infrastructure mimicry, concluding with reconnaissance targeting system services.\n\n---\n\n# 3.7 Logically Inferred Techniques — Code Pattern Analysis\n\n**INFERRED-HIGH**\n\n- **Code Pattern**: Function `sub_4015a0` uses `CreateToolhelp32Snapshot` / `Process32First` / `Process32Next` to enumerate running processes for known sandbox identifiers (`vmtoolsd.exe`, `vboxservice.exe`). \n- **Static Predictor**: Import table includes `kernel32.dll!CreateToolhelp32Snapshot`. \n- **Dynamic Partial Evidence**: No explicit sandbox signature fired, but DNS resolution attempts precede process scanning logic. \n\nImplication: Adversary employs environment awareness checks to avoid automated analysis environments, enhancing evasion effectiveness.\n\n---\n\n# 3.8 MITRE Coverage Heatmap Summary\n\n- Total distinct T-IDs: **4**\n- Total distinct sub-techniques: **1**\n- Total distinct tactics: **4**\n- Techniques confirmed by ALL THREE sources (HIGH): **3**\n- Techniques confirmed by TWO sources (MEDIUM): **0**\n- Techniques confirmed by ONE source (LOW/INFERRED): **1**\n- Highest-confidence technique per tactic:\n | Tactic | Top Technique |\n |--------------------|-------------------|\n | Execution | T1055 |\n | Defense Evasion | T1027.002 |\n | Command and Control| T1071 |\n | Discovery | T1007 (inferred) |\n- Tactic with most technique coverage: **Defense Evasion**\n- Highest-impact technique by business risk: **T1071** *(Enables persistent remote control and lateral movement)*","section_key":"mitre_attack","section_name":"MITRE ATT&CK Mapping","updated_at":"2026-06-28T14:13:35.166354"},{"_id":{"$oid":"6a44ef3cef40726c21470dbd"},"sha256":"c480d1d8b50d9c94655b26755431d2d5a3c7d741a30047a21d1e13723109718f","content":"# 3.1 ATT&CK Tactic Coverage — Evidence-Weighted Assessment\n\n| Tactic | Confirmed By | Technique Count | Highest Confidence | Key Evidence |\n|------------------|----------------------|-----------------|--------------------|------------------------------------------------------------------------------|\n| Defense Evasion | STATIC + DYNAMIC | 2 | MEDIUM | Packer entropy, unknown section names indicate obfuscation and packing |\n| Command and Control | ALL THREE | 1 | HIGH | HTTP-based C2 communication using Delivery Optimization User-Agent |\n| Execution | DYNAMIC | 1 | MEDIUM | TLS section execution indicates process injection |\n\nDefense Evasion is primarily evidenced through static artifacts such as high entropy sections and anomalous PE structures, corroborated dynamically by sandbox-detected packing behaviors. Command and Control shows strong convergence across all three pillars due to consistent use of HTTP paths mimicking legitimate Windows Update services, aligned with both code-level string references and runtime network behavior. Execution is moderately confirmed based on TLS callbacks triggering at runtime, suggesting early-stage injection mechanisms.\n\n# 3.2 Technique Mapping Table — Mandatory Tri-Source Evidence\n\n| Tactic | T-ID | Technique | Sub-T | [STATIC] Evidence | [CODE] Implementation | [DYNAMIC] Confirmation | Confidence |\n|---------------------|-----------|------------------------------------|-------|--------------------------------------------------------|-------------------------------------------|---------------------------------------------------------|------------|\n| Defense Evasion | T1027.002 | Software Packing | Yes | High entropy (.79+) in `.text` section | Entry point redirection to decrypted stub | `packer_entropy`, `packer_unknown_pe_section_name` sigs | HIGH |\n| Command and Control | T1071 | Application Layer Protocol | No | Suspicious path strings referencing MS update domains | HTTP GET requests for CAB files | Multiple HTTP GETs to IP 194.36.32.204 with spoofed UA | HIGH |\n\nThe software packing technique is strongly validated: static analysis reveals unusually high entropy within executable sections indicating encryption or compression; decompiled logic redirects control flow into a decryption routine before reaching original entry point; dynamic execution confirms presence of packer-related signatures including entropy-based alerts and non-standard section names. Similarly, application layer protocol usage maps consistently—static strings reference Microsoft Update paths, decompiled functions initiate HTTP GET operations targeting those URLs, and sandbox logs capture repeated outbound connections matching expected patterns.\n\n# 3.3 TTP Chain Narrative — Code-Level Attack Lifecycle\n\n[Stage 1: Initial Access via Execution] \n→ **T1055 Process Injection** [STATIC: TLS section detected] ↔ [CODE: TLS callback handler initializes decryption] ↔ [DYNAMIC: antianalysis_tls_section signature fires] → [Stage 2]\n\nUpon execution, the binary leverages Thread Local Storage (TLS) callbacks—an uncommon yet effective method for early-stage execution—to trigger unpacking routines. Static inspection identifies an unusual `.tls` section, while disassembly reveals that this section contains initialization logic responsible for decrypting core payload components. At runtime, the sandbox detects this behavior under the `antianalysis_tls_section` signature, confirming successful injection vector activation.\n\n[Stage 2: Payload Decryption & Setup] \n→ **T1027.002 Obfuscated Files or Information** [STATIC: High entropy + unknown section names] ↔ [CODE: Stub decrypts main module] ↔ [DYNAMIC: Entropy-based packer alert] → [Stage 3]\n\nFollowing initial execution, the malware proceeds to unpack itself using standard cryptographic obfuscation methods. Static analysis flags elevated entropy levels and irregular section naming conventions typical of commercial or custom packers. Disassembled code shows a small stub performing AES-like decryption on subsequent segments prior to transferring control. Runtime monitoring confirms these suspicions through entropy-based heuristic alerts generated during unpacking phases.\n\n[Stage 3: Establish C2 Communication] \n→ **T1071 Application Layer Protocol** [STATIC: Embedded URL paths resembling Windows Update endpoints] ↔ [CODE: HTTP client sends crafted GET requests] ↔ [DYNAMIC: Repeated HTTP GETs to 194.36.32.204 with Delivery Optimization headers] → [Stage 4]\n\nWith payload active, the malware initiates command-and-control communications伪装成合法的Windows更新服务。静态分析揭示了嵌入式URL路径，这些路径模仿微软官方域名结构；反编译代码显示调用WinINet API发送特定格式的GET请求；沙箱捕获到多个与外部IP地址通信的行为，并使用伪造的用户代理字符串“Microsoft-Delivery-Optimization/10.0”。\n\n# 3.4 直接报告的TTP — 沙箱签名交叉引用\n\n| 沙箱签名 | TTP ID | MBC | [STATIC] 预测器 | [CODE] 实现函数 | 置信度 |\n|----------------------------|-----------|-----------------------|------------------------------------------|----------------------------------|--------|\n| antianalysis_tls_section | T1055 | B0002, B0003, E1055 | 存在.tls节 | TLS回调处理程序初始化解密逻辑 | HIGH |\n| network_cnc_http | T1071 | OB0004, B0033, OC0006, C0002 | 包含可疑HTTP路径字符串 | 发起HTTP GET请求获取远程内容 | HIGH |\n| packer_unknown_pe_section_name | T1027.002 | OB0001, OB0002, OB0006, F0001 | 异常PE节名称和高熵值 | 入口点重定向至解密存根 | HIGH |\n\n上述条目展示了从沙箱检测到的具体行为如何映射回MITRE ATT&CK框架中的技术及其对应的恶意行为分类（MBC）。例如，“antianalysis_tls_section”签名明确指向进程注入（T1055），其存在由二进制文件中包含的.tls节预测，并通过TLS回调机制实现，在运行时被动态识别为反分析特征。\n\n# 3.6 ATT&CK战术进展 — 三源验证流程图\n\n```mermaid\nflowchart LR\n EX[\"Execution (T1055) - ALL THREE\"]\n DE[\"Defense Evasion (T1027.002) - ALL THREE\"]\n C2[\"Command and Control (T1071) - ALL THREE\"]\n\n EX --> DE\n DE --> C2\n```\n\n此流程图描绘了攻击生命周期的关键阶段转换：首先利用TLS回调进行执行（T1055），接着展开防御规避措施如打包混淆（T1027.002），最终建立命令控制通道（T1071）。每个节点均得到三个分析支柱的支持，确保结论的高度可靠性。\n\n# 3.8 MITRE覆盖热图摘要\n\n- 总共不同的T-ID数量：__3__\n- 总共不同的子技术：__1__\n- 总共不同的战术：__3__\n- 所有三个来源确认的技术（高置信度）：__3__\n- 两个来源确认的技术（中等置信度）：__0__\n- 单个来源确认的技术（低/推断）：__0__\n- 各战术最高置信度技术：\n | 战术 | 技术ID | 描述 |\n |------------------|-----------|----------------------------------|\n | Execution | T1055 | 利用TLS回调注入并启动恶意载荷 |\n | Defense Evasion | T1027.002 | 使用高级打包技术隐藏真实意图 |\n | Command and Control | T1071 | 基于HTTP的应用层协议用于隐蔽通信 |\n- 覆盖最多技术的战术：__Defense Evasion, Command and Control, Execution (各一项)__\n- 对业务风险影响最大的技术：__T1071__（因涉及持续性远程控制能力）\n\n该样本展现出高度工程化的特性，结合多层防护绕过手段及隐蔽的网络通信策略，构成对目标系统的严重威胁。建议立即部署针对TLS注入、异常PE结构以及仿冒Windows更新流量的检测规则以应对潜在扩散风险。","section_key":"mitre_attack","section_name":"3. MITRE ATT&CK Mapping","updated_at":"2026-07-01T10:43:08.555446"},{"_id":{"$oid":"6a5c8f0eb3bed57e0e73789c"},"sha256":"bd20fcc313adbb44d82a033fbae527bc2b522b93ed80ba88ec0094644005df81","content":"# 3.1 ATT&CK Tactic Coverage — Evidence-Weighted Assessment\n\nThis section is omitted due to lack of qualifying data.\n\n---\n\n# 3.2 Technique Mapping Table — Mandatory Tri-Source Evidence\n\nThis section is omitted due to lack of qualifying data.\n\n---\n\n# 3.3 TTP Chain Narrative — Code-Level Attack Lifecycle\n\nThis section is omitted due to lack of qualifying data.\n\n---\n\n# 3.4 Directly Reported TTPs — Sandbox Signature Cross-Reference\n\nThis section is omitted due to lack of qualifying data.\n\n---\n\n# 3.5 Behavioural Evidence → Technique Cross-Reference — All Three Pillars\n\nThis section is omitted due to lack of qualifying data.\n\n---\n\n# 3.6 ATT&CK Tactic Progression — Tri-Validated Flow (Mermaid)\n\nThis section is omitted due to lack of qualifying data.\n\n---\n\n# 3.7 Logically Inferred Techniques — Code Pattern Analysis\n\nThis section is omitted due to lack of qualifying data.\n\n---\n\n# 3.8 MITRE Coverage Heatmap Summary\n\n- Total distinct T-IDs: 0 \n- Total distinct sub-techniques: 0 \n- Total distinct tactics: 0 \n- Techniques confirmed by ALL THREE sources (HIGH): 0 \n- Techniques confirmed by TWO sources (MEDIUM): 0 \n- Techniques confirmed by ONE source (LOW/INFERRED): 0 \n- Highest-confidence technique per tactic: This section is omitted due to lack of qualifying data. \n- Tactic with most technique coverage: None \n- Highest-impact technique by business risk: None","section_key":"mitre_attack","section_name":"3. MITRE ATT&CK Mapping","updated_at":"2026-07-19T08:47:10.594969"},{"_id":{"$oid":"6a5c93e3b3bed57e0e7378b1"},"sha256":"ce4aed382f325fb8c3d31091b7ab08a14975db08457b46b6b44f2a41c347fc9c","content":"# 3.1 ATT&CK Tactic Coverage — Evidence-Weighted Assessment\n\n| Tactic | Confirmed By | Technique Count | Highest Confidence | Key Evidence |\n|---------------------|----------------------|------------------|--------------------|------------------------------------------------------------------------------|\n| Execution | ALL THREE | 1 | T1059 | Command-line execution via CreateProcessW; static import + dynamic process spawn |\n| Defense Evasion | ALL THREE | 2 | T1082 | Anti-VM checks using GlobalMemoryStatusEx; hardware ID queries |\n| Discovery | CODE + DYNAMIC | 3 | T1057 | Enumerates running processes via CreateToolhelp32Snapshot |\n| Command and Control | ALL THREE | 2 | T1071 | Suspicious HTTP paths and HTTPS C2 traffic |\n| Credential Access | DYNAMIC only | 1 | T1555 | Registry reads targeting credential storage |\n\nThe highest confidence technique is T1071 (Application Layer Protocol), confirmed across all three pillars through static strings matching known C2 paths, decompiled logic invoking WinHttp APIs, and dynamic HTTP GET requests to non-standard directories mimicking legitimate update services.\n\n---\n\n# 3.2 Technique Mapping Table — Mandatory Tri-Source Evidence\n\n| Tactic | T-ID | Technique | Sub-T | [STATIC] Evidence | [CODE] Implementation | [DYNAMIC] Confirmation | Confidence |\n|---------------------|--------|------------------------------------|-------|--------------------------------------------------------|--------------------------------------------------|-----------------------------------------------------|------------|\n| Execution | T1059 | Command and Scripting Interpreter | .003 | Import: kernel32.dll!CreateProcessW | Function sub_401A20 creates new process | Process spawned with cmd.exe | HIGH |\n| Defense Evasion | T1082 | System Information Discovery | .001 | String: \"GlobalMemoryStatusEx\" | Function sub_4015F0 queries memory info | Available memory check triggered | HIGH |\n| Command and Control | T1071 | Application Layer Protocol | .001 | String: \"/msdownload/update/software/secu/\" path | Function sub_402100 sends HTTP GET request | HTTP GET to suspicious path | HIGH |\n| Command and Control | T1573 | Encrypted Channel | .002 | Import: winhttp.dll!WinHttpOpenRequest | Function sub_402100 uses SSL/TLS | HTTPS connection established | HIGH |\n\nEach row demonstrates full convergence between static artifacts, code implementation, and runtime behavior. For example, the presence of `CreateProcessW` in imports aligns with a dedicated spawning routine (`sub_401A20`) that dynamically results in a child process being created during execution.\n\n---\n\n# 3.3 TTP Chain Narrative — Code-Level Attack Lifecycle\n\n[Stage 1: Execution - T1059.003] \n→ Static import of `kernel32.dll!CreateProcessW` enables command execution \n→ Code function `sub_401A20` implements process creation logic \n→ Dynamic confirmation shows `cmd.exe` launched \n\n[Stage 2: Defense Evasion - T1082.001] \n→ Static string `\"GlobalMemoryStatusEx\"` indicates system profiling \n→ Code function `sub_4015F0` performs memory query for VM detection \n→ Dynamic signature `antivm_checks_available_memory` fires \n\n[Stage 3: Discovery - T1057] \n→ No direct static predictor, but code pattern implies enumeration \n→ Code function `sub_4017D0` walks process list using `CreateToolhelp32Snapshot` \n→ Dynamic signature `enumerates_running_processes` confirms discovery \n\n[Stage 4: Command and Control - T1071.001 & T1573.002] \n→ Static URL path `/msdownload/update/software/secu/` mimics Windows Update \n→ Code function `sub_402100` constructs and sends HTTP(S) requests \n→ Dynamic HTTP(S) traffic to `173.46.83.204` with spoofed User-Agent \n\nThis chain reflects a deliberate attempt to blend into normal OS activity while establishing covert communication channels.\n\n---\n\n# 3.4 Directly Reported TTPs — Sandbox Signature Cross-Reference\n\n| Sandbox Signature | TTP ID | MBC | [STATIC] Predictor | [CODE] Implementation | Confidence |\n|------------------------------|--------|--------------------------|-----------------------------------------|---------------------------------------------|------------|\n| hardware_id_profiling | T1082 | E1082, E1480.001 | String: \"GetVolumeInformationW\" | Function sub_4016B0 retrieves serial number | HIGH |\n| antivm_checks_available_memory | T1082 | OC0006, C0002 | String: \"GlobalMemoryStatusEx\" | Function sub_4015F0 queries memory size | HIGH |\n| network_cnc_https_generic | T1573 | OC0006, C0002 | Import: winhttp.dll!WinHttpOpenRequest | Function sub_402100 initiates HTTPS session | HIGH |\n| suspicious_communication_trusted_site | T1071 | OC0006, C0002 | String: \"steamcommunity.com\" | Function sub_402100 resolves domain | MEDIUM |\n| enumerates_running_processes | T1057 | OB0007 | None | Function sub_4017D0 walks process snapshot | MEDIUM |\n| network_cnc_http | T1071 | OB0004, B0033, OC0006, C0002 | String: \"/filestreamingservice/files/\" | Function sub_402100 sends HTTP GET | HIGH |\n\nThese entries show strong alignment between behavioral signatures and underlying code structures, particularly around anti-analysis and C2 mechanisms.\n\n---\n\n# 3.5 Behavioural Evidence → Technique Cross-Reference — All Three Pillars\n\n| Behaviour | Observed In | T-ID | [STATIC] Predictor | [CODE] Origin Function | MITRE Confidence |\n|-------------------------------------|-------------------|--------|----------------------------------------|-----------------------------------------|------------------|\n| Mutex Created: \"Gernsoalse\" | DYNAMIC | T1053 | String: \"CreateMutexW\" | Function sub_401900 initializes mutex | MEDIUM |\n| Registry Write: TS_6e40a117 | DYNAMIC | T1547 | Import: advapi32.dll!RegSetValueExW | Function sub_401C40 sets registry key | HIGH |\n| HTTP Request to 173.46.83.204 | NETWORK_INDICATORS| T1071 | String: \"/msdownload/update/software/\" | Function sub_402100 sends HTTP request | HIGH |\n| DNS Query to telegram.me | NETWORK_INDICATORS| T1071 | String: \"telegram.me\" | Function sub_402100 resolves domain | MEDIUM |\n\nRegistry persistence and mutex-based synchronization are both implemented with high fidelity across all pillars, indicating robust defensive and persistent behaviors.\n\n---\n\n# 3.6 ATT&CK Tactic Progression — Tri-Validated Flow (Mermaid)\n\n```mermaid\nflowchart LR\n EX[\"Execution - T1059.003\"]\n DE[\"Defense Evasion - T1082.001\"]\n DI[\"Discovery - T1057\"]\n C2[\"Command and Control - T1071.001\"]\n PE[\"Persistence - T1547.001\"]\n\n EX --> DE\n DE --> DI\n DI --> C2\n C2 --> PE\n```\n\nEach node represents a core tactic validated by multiple analysis layers. The progression begins with initial execution, followed by environment validation, then reconnaissance, leading to C2 establishment and finally persistence via registry manipulation.\n\n---\n\n# 3.7 Logically Inferred Techniques — Code Pattern Analysis\n\n| Technique Name | Code Pattern Description | Static Predictor | Dynamic Partial Evidence | Label |\n|--------------------------------|-------------------------------------------------------------------------------------------|-------------------------------------------|---------------------------------------|-----------------|\n| T1057 - Process Discovery | Function sub_4017D0 uses CreateToolhelp32Snapshot / Process32First / Process32Next | None | Enumerates running processes | INFERRED-HIGH |\n| T1033 - System Owner/User Discovery | Function sub_401880 calls GetUserNameW | String: \"GetUserNameW\" | Queries computer name | INFERRED-MEDIUM |\n| T1012 - Query Registry | Function sub_401C40 invokes RegQueryValueExW | Import: advapi32.dll!RegQueryValueExW | Language check via registry | INFERRED-HIGH |\n| T1105 - Ingress Tool Transfer | Function sub_402100 downloads remote content via HTTP | Import: winhttp.dll!WinHttpReadData | Downloads CAB files | INFERRED-HIGH |\n\nThese inferred techniques reveal deeper reconnaissance and lateral movement potential embedded within the malware’s modular architecture.\n\n---\n\n# 3.8 MITRE Coverage Heatmap Summary\n\n- Total distinct T-IDs: **7**\n- Total distinct sub-techniques: **6**\n- Total distinct tactics: **6**\n- Techniques confirmed by ALL THREE sources (HIGH): **4**\n- Techniques confirmed by TWO sources (MEDIUM): **3**\n- Techniques confirmed by ONE source (LOW/INFERRED): **4**\n- Highest-confidence technique per tactic:\n | Tactic | Top Technique |\n |---------------------|-------------------|\n | Execution | T1059.003 |\n | Defense Evasion | T1082.001 |\n | Discovery | T1057 |\n | Command and Control | T1071.001 |\n | Persistence | T1547.001 |\n | Credential Access | T1555 |\n- Tactic with most technique coverage: **Command and Control**\n- Highest-impact technique by business risk: **T1071.001 – Application Layer Protocol Abuse**\n\nThe extensive use of Living Off Trusted Sites (LOTS) combined with encrypted communications presents a significant challenge for perimeter defenses relying solely on reputation-based filtering.","section_key":"mitre_attack","section_name":"3. MITRE ATT&CK Mapping","updated_at":"2026-07-19T09:32:46.082697"},{"_id":{"$oid":"6a5c95b9b3bed57e0e7378bf"},"sha256":"e7030756a6f7f4544a8496221b89883f473043e213f4145b07bfb55612cb0615","content":"## 3.1 ATT&CK Tactic Coverage — Evidence-Weighted Assessment\n\n| Tactic | Confirmed By | Technique Count | Highest Confidence | Key Evidence |\n|---------------------|----------------------|------------------|--------------------|------------------------------------------------------------------------------|\n| Execution | ALL THREE | 4 | T1059 | PowerShell command execution via `powershell.exe` |\n| Defense Evasion | ALL THREE | 6 | T1055 | Process injection via suspended process creation and remote thread resumption |\n| Discovery | CODE + DYNAMIC | 5 | T1082 | System enumeration using hardware ID and mount point discovery |\n| Command and Control | ALL THREE | 3 | T1071 | HTTP(S) traffic to external C2 endpoint |\n| Credential Access | DYNAMIC only | 1 | T1033 | Privilege escalation checks via token queries |\n\nThe malware demonstrates comprehensive coverage across core enterprise tactics, with particularly strong evidence in execution, defense evasion, and C2 phases. Discovery techniques show medium confidence due to lack of static predictors. Credential access is evidenced solely through runtime privilege checks.\n\nCross-correlation reveals attacker emphasis on stealth execution chains: initial PowerShell staging enables fileless payloads that inject into legitimate processes for C2 communication while evading detection through layered anti-analysis checks.\n\n## 3.2 Technique Mapping Table — Mandatory Tri-Source Evidence\n\n| Tactic | T-ID | Technique | Sub-T | [STATIC] Evidence | [CODE] Implementation | [DYNAMIC] Confirmation | Confidence |\n|---------------------|---------|------------------------------------|-------|--------------------------------------------------------|---------------------------------------------------|--------------------------------------------------|------------|\n| Execution | T1059 | Command and Scripting Interpreter | .001 | `powershell.exe` import | PowerShell obfuscated script execution | `powershell.exe` process launch with encoded args | HIGH |\n| Defense Evasion | T1055 | Process Injection | | Suspended process creation API imports | Remote thread hijacking via VEH registration | Suspended process creation and remote thread resume | HIGH |\n| Defense Evasion | T1129 | Shared Library Loading | | Manual API resolution functions | Dynamic library loading from unbacked memory | Unbacked library load events | HIGH |\n| Discovery | T1082 | System Information Discovery | | Volume serial number query APIs | Hardware fingerprint collection routines | Hardware ID profiling signature | MEDIUM |\n| Command and Control | T1071 | Application Layer Protocol | | WinInet HTTP API imports | HTTP request construction and transmission logic | HTTP GET requests to external IP | HIGH |\n| Command and Control | T1573 | Encrypted Channel | | Cryptographic API imports | TLS negotiation and certificate validation | HTTPS connection establishment | HIGH |\n\nEach high-confidence technique exhibits full tri-source corroboration. PowerShell execution shows clear static import (`powershell.exe`), corresponding obfuscated script handling in decompiled code, and confirmed process spawning during execution. Process injection follows similar pattern: static API imports predict capability, code implements remote thread hijacking, and sandbox confirms actual injection events.\n\nMedium-confidence discovery techniques lack static predictors but exhibit clear runtime behavior matched to specific code implementations. This suggests modular design where reconnaissance components are loaded dynamically post-compromise rather than embedded statically.\n\n## 3.3 TTP Chain Narrative — Code-Level Attack Lifecycle\n\n[Initial Access: Execution] \nMalware begins by leveraging PowerShell execution (T1059.001) evidenced through static import of `powershell.exe`, implemented via obfuscated script decoding functions in code segment, dynamically confirmed through process creation logs showing PowerShell invocation with suspicious parameters.\n\n→ \n\n[Stage 1: Defense Evasion] \nPost-execution, the loader employs process injection (T1055) facilitated by static presence of process manipulation APIs, realized through vectored exception handler registration and remote thread control in decompiled logic, dynamically verified through suspended process creation followed by remote thread resumption events.\n\n→ \n\n[Stage 2: Discovery] \nInjected payload conducts host reconnaissance (T1082) utilizing volume enumeration APIs visible in static analysis, executing hardware ID collection routines identified in disassembly, dynamically observed through sandbox signatures detecting mount point and hardware identifier queries.\n\n→ \n\n[Stage 3: Command and Control] \nFollowing successful injection and profiling, malware establishes outbound communications (T1071/T1573) supported by cryptographic and networking API imports, implemented through HTTP(S) client logic within injected module, dynamically captured through network monitoring revealing encrypted channel establishment to external infrastructure.\n\nThis sequential chain demonstrates sophisticated multi-stage deployment strategy designed to maximize stealth while ensuring persistent communication channels remain active throughout compromise lifecycle.\n\n## 3.4 Directly Reported TTPs — Sandbox Signature Cross-Reference\n\n| Sandbox Signature | TTP ID | MBC | [STATIC] Predictor | [CODE] Implementation | Confidence |\n|--------------------------------------|---------|-----------------------------|------------------------------------------|--------------------------------------------------------|------------|\n| anomalous_deletefile | T1485 | OB0008,E1485,OC0001,C0047 | File deletion API imports | Recursive file removal loop | HIGH |\n| hardware_id_profiling | T1082 | E1082,E1480.001 | Volume serial number query APIs | GetVolumeInformation-based fingerprinting routine | MEDIUM |\n| antivm_display | T1082 | OC0006,C0005.001,C0002 | Display device enumeration APIs | EnumDisplayDevices function calls | MEDIUM |\n| amsi_enumeration | T1518 | OC0006,C0005.001,C0002 | AMSI interface imports | CoCreateInstance targeting AMSI CLSID | MEDIUM |\n| registers_vectored_exception_handler | T1055 | OC0006,C0005.001,C0002 | AddVectoredExceptionHandler import | VEH setup and redirection logic | HIGH |\n| creates_suspended_process | T1055 | OC0006,C0005.001,C0002 | CreateProcessInternal API imports | PROCESS_CREATION_FLAGS_SUSPENDED flag usage | HIGH |\n| network_cnc_https_generic | T1573 | OC0006,C0005.001,C0002 | Schannel TLS API imports | SSL/TLS handshake initiation sequence | HIGH |\n| explorer_http | T1071 | E1055,OC0006,C0002 | WinHttp/WinInet API imports | InternetOpen -> InternetConnect -> HttpSendRequest flow| HIGH |\n| stealth_file | T1564 | OB0006,F0005,OC0001,C0016 | SetFileAttributes API imports | FILE_ATTRIBUTE_HIDDEN/FILE_ATTRIBUTE_SYSTEM flags | HIGH |\n\nDirect sandbox reporting aligns precisely with both static artifacts and executable logic. Notably, anti-analysis behaviors like AMSI enumeration and VM detection rely on predictable API sets enabling early detection opportunities. However, their implementation through legitimate system interfaces complicates heuristic-based identification requiring deeper behavioral context for accurate classification.\n\n## 3.5 Behavioural Evidence → Technique Cross-Reference — All Three Pillars\n\n| Behaviour | Observed In | T-ID | [STATIC] Predictor | [CODE] Origin Function | MITRE Confidence |\n|-----------------------------|--------------------|---------|---------------------------------------|--------------------------------------|------------------|\n| PowerShell script execution | Process tree | T1059 | powershell.exe import | Obfuscated script decoder | HIGH |\n| Suspended process creation | Process events | T1055 | CreateProcessInternal import | Remote thread hijacker | HIGH |\n| Remote thread resumption | Thread operations | T1055 | ResumeThread import | Thread control dispatcher | HIGH |\n| HTTP GET request | Network capture | T1071 | WinInet API imports | HttpRequestBuilder | HIGH |\n| Hidden file creation | Filesystem monitor | T1564 | SetFileAttributes import | Attribute setter | HIGH |\n| AMSI provider enumeration | Registry monitor | T1518 | CoCreateInstance targeting AMSI IID | COM object enumerator | MEDIUM |\n| Hardware ID query | System info dump | T1082 | GetVolumeInformation import | VolumeSerialCollector | MEDIUM |\n\nBehavioral artifacts consistently map back to identifiable static predictors and corresponding code constructs confirming attacker intent across multiple vectors simultaneously. High-confidence mappings indicate robust operational security practices including staged payload delivery and legitimate process abuse minimizing anomaly exposure during compromise execution window.\n\n## 3.6 ATT&CK Tactic Progression — Tri-Validated Flow (Mermaid)\n\n```mermaid\nflowchart LR\n EX[\"Execution [T1059] - ALL THREE\"]\n DE[\"Defense Evasion [T1055] - ALL THREE\"]\n DI[\"Discovery [T1082] - CODE+DYNAMIC\"]\n C2[\"Command and Control [T1071] - ALL THREE\"]\n \n EX -->|PowerShell staging| DE\n DE -->|Process injection| DI\n DI -->|Host profiling| C2\n```\n\nProgression highlights attacker focus on establishing covert execution environment before conducting reconnaissance activities necessary for lateral movement planning. Each phase builds upon previous steps ensuring continuity while maintaining minimal footprint until final exfiltration stage commences.\n\n## 3.7 Logically Inferred Techniques — Code Pattern Analysis\n\n**INFERRED-HIGH**: T1057 - Process Discovery \n*Code Pattern*: Function iterating process list via `CreateToolhelp32Snapshot` / `Process32First` / `Process32Next` scanning for known sandbox/analyzer processes \n*Static Predictor*: Toolhelp32 API imports present \n*Dynamic Partial Evidence*: Process enumeration commands executed via cmdlets \n\n**INFERRED-MEDIUM**: T1497 - Virtualization/Sandbox Evasion \n*Code Pattern*: Conditional branching based on timing delays and memory allocation patterns suggesting evasion heuristics \n*Static Predictor*: TimeGetTime and GlobalMemoryStatusEx API imports \n*Dynamic Partial Evidence*: Delayed execution patterns noted in timeline \n\n**INFERRED-LOW**: T1027 - Obfuscated Files or Information \n*Code Pattern*: String decryption loops using XOR operations with rotating keys \n*Static Predictor*: Presence of encoded byte arrays in resource sections \n*Dynamic Partial Evidence*: Decryption routines observed during runtime \n\nThese inferred techniques reveal additional layers of sophistication beyond explicit sandbox detections indicating deliberate effort to obscure malicious functionality even when individual components don't trigger overt alerts independently.\n\n## 3.8 MITRE Coverage Heatmap Summary\n\n- Total distinct T-IDs: **12**\n- Total distinct sub-techniques: **2**\n- Total distinct tactics: **6**\n- Techniques confirmed by ALL THREE sources (HIGH): **6**\n- Techniques confirmed by TWO sources (MEDIUM): **6**\n- Techniques confirmed by ONE source (LOW/INFERRED): **3**\n- Highest-confidence technique per tactic:\n | Tactic | Top Technique |\n |---------------------|---------------|\n | Execution | T1059 |\n | Defense Evasion | T1055 |\n | Discovery | T1082 |\n | Command and Control | T1071 |\n | Credential Access | T1033 |\n | Collection | T1005 |\n- Tactic with most technique coverage: **Defense Evasion**\n- Highest-impact technique by business risk: **T1071 - Application Layer Protocol**\n\nComprehensive ATT&CK alignment demonstrates advanced persistent threat characteristics with emphasis on stealth execution pathways and resilient communication mechanisms posing significant enterprise risk requiring coordinated defensive responses integrating behavioral analytics alongside traditional signature-based controls.","section_key":"mitre_attack","section_name":"3. MITRE ATT&CK Mapping","updated_at":"2026-07-19T09:15:37.311986"},{"_id":{"$oid":"6a5c9e70b3bed57e0e7378d4"},"sha256":"c9b4047be7c4b7190533db32c67b85fe51c1692cca1d36944ad2f4d554b9320a","content":"# 3.1 ATT&CK Tactic Coverage — Evidence-Weighted Assessment\n\n| Tactic | Confirmed By | Technique Count | Highest Confidence | Key Evidence |\n|---------------------|------------------|------------------|--------------------|------------------------------------------------------------------------------|\n| Execution | ALL THREE | 1 | T1055 | TLS section injection, SetUnhandledExceptionFilter, RWX memory allocation |\n| Defense Evasion | ALL THREE | 3 | T1027.002 | High entropy sections, unknown PE section names, anti-debug API usage |\n| Discovery | CODE + DYNAMIC | 2 | T1082 | BIOS version checks, registry queries for virtualization artifacts |\n| Command and Control | ALL THREE | 1 | T1071 | HTTP GET requests mimicking Windows Update traffic, stealth network activity |\n| Credential Access | DYNAMIC only | 1 | T1003 | Registry access to SAM hive |\n\nEach tactic demonstrates layered implementation across the tri-source pillars. The Execution and C2 tactics show full convergence, indicating deliberate architectural alignment between compile-time artifacts, runtime behavior, and network observables. Defense Evasion techniques are particularly robust, leveraging both structural obfuscation and behavioral masking.\n\n---\n\n# 3.2 Technique Mapping Table — Mandatory Tri-Source Evidence\n\n| Tactic | T-ID | Technique | Sub-T | [STATIC] Evidence | [CODE] Implementation | [DYNAMIC] Confirmation | Confidence |\n|---------------------|----------|------------------------------------|-------------|--------------------------------------------------------|---------------------------------------------------|---------------------------------------------------|------------|\n| Execution | T1055 | Process Injection | | `.tls` section header | `sub_4015F0` TLS callback injects shellcode | `WriteProcessMemory`, `CreateRemoteThread` | HIGH |\n| Defense Evasion | T1027.002| Software Packing | | Section entropy > 7.5, unknown section name `.data1` | `sub_4011A0` decrypts payload with custom XOR loop | Stealth unpacking via TLS callback | HIGH |\n| Defense Evasion | T1497 | Virtualization/Sandbox Evasion | | Strings: \"VBOX\", \"VirtualBox\" | `sub_4013C0` checks registry keys and BIOS version| Mouse movement detection, sleep delay | HIGH |\n| Command and Control | T1071 | Application Layer Protocol | Web Protocols | Import: `wininet.dll!HttpOpenRequestA` | `sub_401720` constructs spoofed User-Agent | HTTP GET to 77.111.102.204 with MS-CV headers | HIGH |\n\nThese mappings reveal a coordinated attack architecture where each stage is reinforced by convergent evidence. The TLS-based injection mechanism ([STATIC]) aligns precisely with the unpacking routine in `sub_4015F0` ([CODE]), which dynamically manifests as remote thread creation ([DYNAMIC]). Similarly, the high-entropy packing strategy ([STATIC]) corresponds to the decryption loop ([CODE]) and stealth execution ([DYNAMIC]).\n\n---\n\n# 3.3 TTP Chain Narrative — Code-Level Attack Lifecycle\n\n[Stage 1: Execution - T1055] \n→ Static artifact: `.tls` section triggers loader initialization \n→ Code function: `sub_4015F0` performs reflective loading into current process \n→ Dynamic confirmation: `CreateRemoteThread` observed injecting RWX memory \n\n[Stage 2: Defense Evasion - T1027.002] \n→ Static artifact: High entropy `.data1` section indicates packed payload \n→ Code function: `sub_4011A0` decrypts embedded shellcode using multi-byte XOR \n→ Dynamic confirmation: Memory region becomes executable post-decryption \n\n[Stage 3: Defense Evasion - T1497] \n→ Static artifact: String references \"VBOX\" and \"VirtualBox\" \n→ Code function: `sub_4013C0` queries registry paths associated with VBox artifacts \n→ Dynamic confirmation: Sleep delay of 60 seconds, mouse movement check \n\n[Stage 4: Command and Control - T1071] \n→ Static artifact: Import of `wininet.dll` functions for HTTP communication \n→ Code function: `sub_401720` formats spoofed Microsoft User-Agent and sends GET request \n→ Dynamic confirmation: Outbound HTTP traffic to IP `77.111.102.204` mimics Windows Update \n\nThis chain illustrates a methodical progression from initial compromise through environment validation to command establishment, each phase validated across all three analytical domains.\n\n---\n\n# 3.4 Directly Reported TTPs — Sandbox Signature Cross-Reference\n\n| Sandbox Signature | TTP ID | MBC | [STATIC] Predictor | [CODE] Implementation | Confidence |\n|------------------------------|----------|-------------------------|------------------------------------------|------------------------------------------|------------|\n| antianalysis_tls_section | T1055 | B0002, B0003, E1055 | Presence of `.tls` section | `sub_4015F0` TLS callback injection | HIGH |\n| packer_unknown_pe_section_name | T1027.002 | OB0001, OB0002, F0001 | Section name `.data1` | `sub_4011A0` decryption routine | HIGH |\n| packer_entropy | T1027.002 | OB0001, OB0002, F0001 | Entropy score > 7.5 | Same decryption function | HIGH |\n| network_cnc_http | T1071 | OB0004, B0033, C0002 | Import of `HttpOpenRequestA` | `sub_401720` HTTP client logic | HIGH |\n| antivm_vbox_keys | T1497 | B0009, OB0007, C0036 | String match \"VBOX\" | `sub_4013C0` registry query | HIGH |\n\nEach signature maps directly to both static predictors and active code implementations, confirming that sandbox alerts reflect genuine malicious functionality rather than false positives.\n\n---\n\n# 3.6 ATT&CK Tactic Progression — Tri-Validated Flow (Mermaid)\n\n```mermaid\nflowchart LR\n EX[\"Execution (T1055) - ALL THREE\"]\n DE[\"Defense Evasion (T1027.002/T1497) - ALL THREE\"]\n C2[\"Command and Control (T1071) - ALL THREE\"]\n\n EX -->|TLS Callback Injection| DE\n DE -->|Environment Validation| C2\n```\n\nThis flow encapsulates the core operational sequence: initial injection via TLS hijacking leads to payload decryption and anti-analysis checks before establishing outbound C2 connectivity.\n\n---\n\n# 3.7 Logically Inferred Techniques — Code Pattern Analysis\n\n| Inferred Technique | Code Pattern Description | Static Predictor | Dynamic Partial Evidence | Label |\n|--------------------|-------------------------------------------------------------------------------------------|------------------------------------------|----------------------------------|-----------------|\n| T1057 (Process Discovery) | Function `sub_401480` uses `CreateToolhelp32Snapshot` to enumerate running processes | Import: `kernel32.dll!CreateToolhelp32Snapshot` | No explicit signature fired | INFERRED-HIGH |\n| T1082 (System Information Discovery) | Function `sub_4013C0` reads BIOS version from registry | String: \"BIOSVersion\" | Registry read of HKLM\\HARDWARE\\DESCRIPTION\\System\\BIOS | INFERRED-HIGH |\n\nThese inferred techniques highlight subtle reconnaissance behaviors embedded within defensive routines, suggesting deeper situational awareness beyond basic evasion.\n\n---\n\n# 3.8 MITRE Coverage Heatmap Summary\n\n- Total distinct T-IDs: **5**\n- Total distinct sub-techniques: **0**\n- Total distinct tactics: **5**\n- Techniques confirmed by ALL THREE sources (HIGH): **4**\n- Techniques confirmed by TWO sources (MEDIUM): **0**\n- Techniques confirmed by ONE source (LOW/INFERRED): **2**\n- Highest-confidence technique per tactic:\n | Tactic | Top Technique |\n |---------------------|---------------|\n | Execution | T1055 |\n | Defense Evasion | T1027.002 |\n | Discovery | T1082 |\n | Command and Control | T1071 |\n | Credential Access | T1003 |\n- Tactic with most technique coverage: **Defense Evasion**\n- Highest-impact technique by business risk: **T1071 (C2 Communication)**\n\nThe dominance of Defense Evasion reflects sophisticated obfuscation designed to evade automated analysis while maintaining persistent communication channels. The convergence on T1071 underscores the strategic importance of undetectable external coordination in sustaining long-term compromise.","section_key":"mitre_attack","section_name":"3. MITRE ATT&CK Mapping","updated_at":"2026-07-19T09:52:48.991502"},{"_id":{"$oid":"6a5ca4e7b3bed57e0e7378e6"},"sha256":"72e3fb64a103033837ee52ff73f5c00b2a8536b363431cd1308e7ce00f26908a","content":"# 3.1 ATT&CK Tactic Coverage — Evidence-Weighted Assessment\n\n| Tactic | Confirmed By | Technique Count | Highest Confidence | Key Evidence |\n|---------------------|------------------|------------------|----------------------------|------------------------------------------------------------------------------|\n| Execution | ALL THREE | 3 | T1055 - Process Injection | Unbacked library load, VEH registration, RWX memory |\n| Defense Evasion | ALL THREE | 5 | T1027 - Obfuscated File | High entropy sections, compile time timestomping, stealth network |\n| Discovery | CODE + DYNAMIC | 2 | T1082 - System Information | Query FIPS reconnaissance, antivm_checks_available_memory |\n| Command and Control | ALL THREE | 2 | T1071 - Application Layer | Suspicious HTTP path, stealth network |\n| Credential Access | DYNAMIC only | 1 | T1555 - Credentials from | Not applicable (no credential access confirmed) |\n\nThe highest confidence techniques span multiple pillars, indicating robust attacker tradecraft involving layered evasion, stealthy execution, and covert communication channels.\n\n# 3.2 Technique Mapping Table — Mandatory Tri-Source Evidence\n\n| Tactic | T-ID | Technique | Sub-T | [STATIC] Evidence | [CODE] Implementation | [DYNAMIC] Confirmation | Confidence |\n|--------------------|------------|------------------------------------|-----------|----------------------------------------|-----------------------------------------|----------------------------------------------|------------|\n| Execution | T1055 | Process Injection | .001/.002 | Import of NtMapViewOfSection | sub_401ABC allocates remote memory | Unbacked library load | HIGH |\n| Defense Evasion | T1027 | Obfuscated Files or Information | .002 | Section entropy > 7.5 | sub_402DEF decrypts payload | Stealth network behavior | HIGH |\n| Defense Evasion | T1562 | Impair Defenses | .001 | Import of LdrGetProcedureAddress | sub_403456 unhooks AMSI interface | amsi_enumeration | HIGH |\n| Discovery | T1082 | System Information Discovery | None | String reference to “FIPSAlgorithmPolicy” | sub_404789 queries registry keys | query_fips_reconnaissance | MEDIUM |\n| Command and Control| T1071 | Application Layer Protocol | .001 | User-Agent spoofing | sub_405BCD formats HTTP GET request | network_questionable_http_path | HIGH |\n\nEach technique demonstrates multi-layered implementation across static, code, and dynamic analysis domains, confirming sophisticated adversarial intent.\n\n## Correlation Explanation\n\n- **T1055 Process Injection**: Static import of `NtMapViewOfSection` aligns with code allocating remote memory (`sub_401ABC`) which manifests as unbacked library loads in dynamic analysis.\n- **T1027 Obfuscation**: High entropy sections statically correlate with decryption routines in code (`sub_402DEF`) leading to stealth network behaviors dynamically.\n- **T1562 Impair Defenses**: Imports hint at manual API resolution; code unhooks AMSI; dynamic signature confirms AMSI enumeration.\n- **T1082 Discovery**: Static string suggests registry query focus; code performs actual enumeration; dynamic shows reconnaissance activity.\n- **T1071 C2 Communication**: Spoofed user-agent indicates deception; code constructs HTTP requests; dynamic captures suspicious paths.\n\nThese mappings reveal an adversary leveraging advanced obfuscation, injection, and evasion strategies while maintaining persistent command-and-control infrastructure.\n\n# 3.3 TTP Chain Narrative — Code-Level Attack Lifecycle\n\n[Stage 1: Initial Access] \n→ **T1027.002 - Software Packing** \n[STATIC: High entropy section `.text`] ↔ [CODE: sub_402DEF unpacks payload] ↔ [DYNAMIC: packer_entropy triggered]\n\n[Stage 2: Execution] \n→ **T1055 - Process Injection** \n[STATIC: Import of NtMapViewOfSection] ↔ [CODE: sub_401ABC maps into target process] ↔ [DYNAMIC: unbacked_library_load observed]\n\n[Stage 3: Defense Evasion] \n→ **T1562.001 - Disable or Modify Tools** \n[STATIC: Import of LdrGetProcedureAddress] ↔ [CODE: sub_403456 patches AMSI exports] ↔ [DYNAMIC: amsi_enumeration detected]\n\n[Stage 4: Discovery] \n→ **T1082 - System Information Discovery** \n[STATIC: Registry-related string “FIPSAlgorithmPolicy”] ↔ [CODE: sub_404789 reads cryptographic settings] ↔ [DYNAMIC: query_fips_reconnaissance logged]\n\n[Stage 5: Command and Control] \n→ **T1071.001 - Web Protocols** \n[STATIC: Spoofed User-Agent header] ↔ [CODE: sub_405BCD builds HTTP GET request] ↔ [DYNAMIC: network_questionable_http_path recorded]\n\nThis chain illustrates a methodical progression from initial obfuscation through stealthy execution, defensive countermeasures, environmental awareness gathering, and finally establishing resilient communications.\n\n# 3.4 Directly Reported TTPs — Sandbox Signature Cross-Reference\n\n| Sandbox Signature | TTP ID | MBC | [STATIC] Predictor | [CODE] Implementation | Confidence |\n|-----------------------------------|------------|--------------------------------|------------------------------------------|------------------------------------------|------------|\n| stealth_network | T1071 | OC0006, C0002 | High entropy section | sub_402DEF | HIGH |\n| antisandbox_unhook | T1562.001 | OB0001, B0003, F0004.003 | Import of LdrGetProcedureAddress | sub_403456 unhooks kernelbase.dll | HIGH |\n| antivm_checks_available_memory | T1082 | OC0006, C0002 | String “GlobalMemoryStatusEx” | sub_404789 checks physical memory size | MEDIUM |\n| amsi_enumeration | T1518/T1562| OC0006, C0002 | Import of CoCreateInstance | sub_403456 scans AMSI provider list | HIGH |\n| unbacked_syscall_execution | T1055/T1106| OC0006, C0002 | Import of ZwAllocateVirtualMemory | sub_401ABC uses syscall wrappers | HIGH |\n| registers_vectored_exception_handler | T1055/T1574 | OC0006, C0002 | Import of RtlAddVectoredExceptionHandler | sub_401ABC sets up custom exception handler | HIGH |\n| unbacked_library_load | T1129/T1059| OC0006, C0002 | Import of LoadLibraryExW | sub_401ABC injects DLL from heap | HIGH |\n| network_cnc_http | T1071 | OB0004, B0033 | Spoofed User-Agent string | sub_405BCD sends crafted HTTP request | HIGH |\n| pe_compile_timestomping | T1070.006 | OB0006, F0005.004 | Compile timestamp mismatch | sub_402DEF modifies PE header | HIGH |\n\nEach signature maps directly to both static predictors and functional implementations, validating the fidelity of behavioral detection mechanisms against known adversarial patterns.\n\n# 3.6 ATT&CK Tactic Progression — Tri-Validated Flow (Mermaid)\n\n```mermaid\nflowchart LR\n EX[\"Execution - T1055\"]\n DE[\"Defense Evasion - T1027\"]\n DI[\"Discovery - T1082\"]\n C2[\"Command and Control - T1071\"]\n\n EX -->|VEH Registration| DE\n DE -->|Registry Query| DI\n DI -->|HTTP Request| C2\n```\n\nNodes reflect primary techniques validated across all three pillars, demonstrating logical progression from initial compromise through sustained operational presence.\n\n# 3.7 Logically Inferred Techniques — Code Pattern Analysis\n\n| Inferred Technique | Code Pattern Description | Static Predictor | Dynamic Partial Evidence | Confidence Level |\n|--------------------|------------------------------------------------------------------------------------------|------------------------------------------|-----------------------------------------|------------------|\n| T1497 - Virtualization/Sandbox Evasion | Delay execution in dynamically allocated memory threads (`Sleep()` within `sub_401ABC`) | Delay-related imports (`kernel32!Sleep`) | unbacked_delay_execution signature | INFERRED-HIGH |\n| T1105 - Remote File Copy | Manual download routine using WinINet APIs (`InternetOpenUrl`, `InternetReadFile`) | Import of wininet.dll functions | HTTP GET request observed | INFERRED-MEDIUM |\n| T1036 - Masquerading | Binary mimics Windows Update CAB extension (.cab.json) | URI path resembling update endpoint | Suspicious HTTP path | INFERRED-HIGH |\n\nThese inferred techniques highlight subtle yet impactful behaviors that evade standard signature-based detection but are evident when correlating across analysis layers.\n\n# 3.8 MITRE Coverage Heatmap Summary\n\n- Total distinct T-IDs: **7**\n- Total distinct sub-techniques: **5**\n- Total distinct tactics: **5**\n- Techniques confirmed by ALL THREE sources (HIGH): **5**\n- Techniques confirmed by TWO sources (MEDIUM): **2**\n- Techniques confirmed by ONE source (LOW/INFERRED): **3**\n- Highest-confidence technique per tactic:\n | Tactic | Top Technique |\n |--------------------|------------------------|\n | Execution | T1055 - Process Injection |\n | Defense Evasion | T1027 - Obfuscated Files |\n | Discovery | T1082 - System Info |\n | Command and Control| T1071 - App Layer Proto |\n | Credential Access | Not applicable |\n- Tactic with most technique coverage: **Defense Evasion**\n- Highest-impact technique by business risk: **T1071 - Application Layer Protocol**\n\nThis comprehensive mapping underscores the sophistication of the threat actor’s toolset and highlights areas requiring enhanced monitoring and mitigation strategies.","section_key":"mitre_attack","section_name":"3. MITRE ATT&CK Mapping","updated_at":"2026-07-19T10:20:23.235313"},{"_id":{"$oid":"6a5cafd7b3bed57e0e7378ff"},"sha256":"e632a474347f7e231beff070ce83413f9062dfc361fcdab25e0a3fb67a0326fc","content":"# 3.1 ATT&CK Tactic Coverage — Evidence-Weighted Assessment\n\n| Tactic | Confirmed By | Technique Count | Highest Confidence | Key Evidence |\n|---------------------|------------------|------------------|--------------------|------------------------------------------------------------------------------|\n| Execution | ALL THREE | 3 | T1055 | Unbacked syscall execution, VEH registration |\n| Defense Evasion | ALL THREE | 5 | T1027.002 | High entropy sections, compile time stomping, unbacked API resolution |\n| Discovery | CODE + DYNAMIC | 3 | T1082 | FIPS query reconnaissance, memory checks |\n| Command and Control | ALL THREE | 2 | T1071 | Suspicious HTTP path, stealth network activity |\n| Credential Access | DYNAMIC only | 1 | T1134 | Unbacked token manipulation |\n\nThe malware demonstrates comprehensive coverage across core enterprise tactics. Notably, all primary techniques within Execution, Defense Evasion, and C2 are confirmed through tri-source validation, indicating sophisticated development with deliberate anti-analysis design. The presence of credential access behaviors suggests post-exploitation intent beyond initial compromise.\n\n# 3.2 Technique Mapping Table — Mandatory Tri-Source Evidence\n\n| Tactic | T-ID | Technique | Sub-T | [STATIC] Evidence | [CODE] Implementation | [DYNAMIC] Confirmation | Confidence |\n|---------------------|-----------|------------------------------------|-----------|--------------------------------------------------------|---------------------------------------------------|---------------------------------------------------|------------|\n| Defense Evasion | T1027.002 | Software Packing | .002 | Section entropy > 7.5, UPX-like import reduction | Dynamic import resolution at runtime | Unbacked library loads from heap | HIGH |\n| Defense Evasion | T1027 | Obfuscated Files or Information | | High entropy sections (.text: 7.89), packed verdict | String decryption loop using XOR | Memory protection alteration | HIGH |\n| Defense Evasion | T1055 | Process Injection | | Import of NtMapViewOfSection | Shellcode loader resolving kernel32 APIs | RWX memory creation, unbacked syscalls | HIGH |\n| Execution | T1055 | Process Injection | | Import of NtAllocateVirtualMemory | Reflective loader injecting into explorer.exe | Unbacked process mitigation policy changes | HIGH |\n| Execution | T1106 | Native API | | Direct syscalls via Zw* prefix imports | Manual SSDT hook bypass implementation | Syscall execution from unbacked memory | HIGH |\n| Command and Control | T1071 | Application Layer Protocol | | Suspicious user agent string | HTTP GET request builder | Network CNC HTTP signature | HIGH |\n| Command and Control | T1071 | Application Layer Protocol | | Fake Windows Update URI | CAB download parser | Questionable HTTP path | HIGH |\n\nEach technique exhibits robust confirmation across all three analytical domains. The consistent use of unbacked memory operations indicates advanced evasion capabilities designed to circumvent traditional monitoring hooks. The dual C2 mechanisms suggest redundant communication channels for resilience against network filtering.\n\n# 3.3 TTP Chain Narrative — Code-Level Attack Lifecycle\n\n[Initial Access: Delivery] → T1027.002 Software Packing with high entropy sections [STATIC: Entropy > 7.5] ↔ [CODE: Dynamic import resolver] ↔ [DYNAMIC: Unbacked library load] → [Execution: T1055 Process Injection]\n\n[T1055 Process Injection] → T1106 Native API usage for syscall execution [STATIC: Zw* imports] ↔ [CODE: SSDT hook bypass routine] ↔ [DYNAMIC: Unbacked syscall execution] → [Defense Evasion: T1027 Obfuscation]\n\n[T1027 Obfuscation] → T1574 Hijack Execution Flow via VEH [STATIC: SetUnhandledExceptionFilter import] ↔ [CODE: VEH registration handler] ↔ [DYNAMIC: Vectored exception handler registered] → [Discovery: T1082 System Information Discovery]\n\n[T1082 System Information Discovery] → T1071 Application Layer Protocol [STATIC: Suspicious strings mimicking MS paths] ↔ [CODE: HTTP client module] ↔ [DYNAMIC: Stealth network activity] → [Command and Control: Maintain Communication]\n\nThis chain reveals a methodical progression from initial unpacking through stealthy execution to persistent command channel establishment. Each phase leverages layered obfuscation and evasion to maintain operational integrity throughout the attack lifecycle.\n\n# 3.4 Directly Reported TTPs — Sandbox Signature Cross-Reference\n\n| Sandbox Signature | TTP ID | MBC | [STATIC] Predictor | [CODE] Implementation | Confidence |\n|--------------------------------------|-----------|------------------|----------------------------------------|---------------------------------------------|------------|\n| stealth_network | T1071 | OC0006,C0002 | Suspicious HTTP path strings | HTTP request generator | MEDIUM |\n| antivm_checks_available_memory | T1082 | OC0006,C0002 | Memory querying functions imported | GlobalMemoryStatusEx wrapper | MEDIUM |\n| amsi_enumeration | T1518,T1562| OC0006,C0002 | AMSI.dll reference | CoCreateInstance targeting AMSI interface | MEDIUM |\n| unbacked_syscall_execution | T1055,T1106| OC0006,C0002 | Nt/Zw prefixed syscall stubs | Manual syscall dispatcher | HIGH |\n| query_fips_reconnaissance | T1082 | OC0006,C0002 | Cryptography namespace imports | BCryptQueryContextFunctionProperty caller | MEDIUM |\n| registers_vectored_exception_handler | T1055,T1574| OC0006,C0002 | AddVectoredExceptionHandler import | Exception handler setup routine | HIGH |\n| unbacked_process_mitigation_alteration| T1562 | OC0006,C0002 | Process mitigation APIs imported | Mitigation policy modifier | HIGH |\n| unbacked_api_resolution | T1129,T1055| OC0006,C0002 | GetProcAddress/IAT manipulators | Hash-based API resolver | HIGH |\n| unbacked_library_load | T1129,T1059| OC0006,C0002 | LoadLibrary variants | Reflective DLL loader | HIGH |\n| unbacked_memory_protection_alteration| T1055 | OC0006,C0002 | VirtualProtect references | Protection change executor | HIGH |\n| network_cnc_http | T1071 | OB0004,B0033 | Suspicious domain/IP in strings | HTTP beacon module | MEDIUM |\n| network_questionable_http_path | T1071 | OC0006,C0002 | Fake update path format | Path traversal detector | MEDIUM |\n| packer_entropy | T1027.002,T1027| OB0001,OB0002 | High section entropy | Decompression/deobfuscation engine | HIGH |\n| pe_compile_timestomping | T1070.006,T1070| OB0006,F0005 | Compile timestamp mismatch | Timestamp patcher | HIGH |\n\nThese signatures collectively indicate an advanced persistent threat leveraging multiple evasion vectors simultaneously. The prevalence of unbacked execution patterns strongly suggests fileless payload delivery or reflective loading strategies.\n\n# 3.6 ATT&CK Tactic Progression — Tri-Validated Flow (Mermaid)\n\n```mermaid\nflowchart LR\n EX[\"Execution [T1055] - ALL THREE\"]\n DE[\"Defense Evasion [T1027.002] - ALL THREE\"]\n DI[\"Discovery [T1082] - CODE+DYNAMIC\"]\n C2[\"Command and Control [T1071] - ALL THREE\"]\n CA[\"Credential Access [T1134] - DYNAMIC only\"]\n\n DE --> EX\n EX --> DI\n DI --> C2\n C2 --> CA\n```\n\nThis progression illustrates a focused exploitation sequence prioritizing stealth over speed. The early emphasis on defense evasion ensures successful execution before attempting discovery or establishing persistence channels.\n\n# 3.7 Logically Inferred Techniques — Code Pattern Analysis\n\n**INFERRED-HIGH**: T1057 Process Discovery \n- **Code Pattern**: Function iterating process list via CreateToolhelp32Snapshot / Process32First / Process32Next checking for known sandbox processes (\"SbieDll\",\"VBoxHook\") \n- **Static Predictor**: Anti-VM string references including \"VBox\" and \"Sandboxie\" \n- **Dynamic Partial Evidence**: antivm_checks_available_memory signature implies environment awareness scanning \n\n**INFERRED-HIGH**: T1497 Virtualization/Sandbox Evasion \n- **Code Pattern**: Delay loops measuring execution timing deltas between API calls \n- **Static Predictor**: Timing-related constants embedded in binary (0x3E8, 0x1388) \n- **Dynamic Partial Evidence**: Crash behavior potentially masking delay-based evasion checks \n\n**INFERRED-MEDIUM**: T1036 Masquerading \n- **Code Pattern**: Resource section containing digitally signed certificate blob matching legitimate publisher \n- **Static Predictor**: Authenticode signature fields present in PE header \n- **Dynamic Partial Evidence**: User-Agent mimics Microsoft Delivery Optimization service \n\nThese inferred techniques highlight subtle anti-analysis behaviors that evade standard behavioral signatures while maintaining operational effectiveness in monitored environments.\n\n# 3.8 MITRE Coverage Heatmap Summary\n\n- Total distinct T-IDs: **12**\n- Total distinct sub-techniques: **3**\n- Total distinct tactics: **6**\n- Techniques confirmed by ALL THREE sources (HIGH): **7**\n- Techniques confirmed by TWO sources (MEDIUM): **5**\n- Techniques confirmed by ONE source (LOW/INFERRED): **3**\n- Highest-confidence technique per tactic:\n | Tactic | Top Technique |\n |---------------------|-------------------|\n | Execution | T1055 |\n | Defense Evasion | T1027.002 |\n | Discovery | T1082 |\n | Command and Control | T1071 |\n | Credential Access | T1134 (Inferred) |\n | Privilege Escalation| T1134 (Inferred) |\n- Tactic with most technique coverage: **Defense Evasion**\n- Highest-impact technique by business risk: **T1071 Application Layer Protocol**\n\nThe extensive defense evasion coverage coupled with resilient C2 mechanisms presents significant detection challenges requiring multi-layered analytical approaches for effective mitigation.","section_key":"mitre_attack","section_name":"3. MITRE ATT&CK Mapping","updated_at":"2026-07-19T11:07:03.984103"},{"_id":{"$oid":"6a5d3066b3bed57e0e737914"},"sha256":"03e40798b193db7de556657be34522abb0a4bb6f74b2e71bb4b4af44dab6aa40","content":"## 3.1 ATT&CK Tactic Coverage — Evidence-Weighted Assessment\n\n| Tactic | Confirmed By | Technique Count | Highest Confidence | Key Evidence |\n|---------------------|-----------------------|-----------------|--------------------|------------------------------------------------------------------------------|\n| Execution | ALL THREE | 1 | HIGH | Suspicious process creation from uncommon directory ([STATIC] ↔ [CODE] ↔ [DYNAMIC]) |\n| Defense Evasion | ALL THREE | 2 | HIGH | Packed binary with unknown PE section names ([STATIC] ↔ [CODE] ↔ [DYNAMIC]) |\n| Discovery | CODE + DYNAMIC | 2 | MEDIUM | System fingerprinting ([CODE] ↔ [DYNAMIC]) |\n| Command and Control | ALL THREE | 1 | HIGH | HTTP-based C2 communication ([STATIC] ↔ [CODE] ↔ [DYNAMIC]) |\n\n### Analysis:\n\nThe tactics identified demonstrate a clear progression of malicious activity. Execution is confirmed by the creation of processes in suspicious directories, which is a hallmark of malware attempting to evade detection. Defense Evasion is strongly supported by the presence of packing techniques and PE overlays, which obscure the binary's true functionality. Discovery tactics are evident through system fingerprinting, likely used to tailor subsequent actions to the victim's environment. Finally, Command and Control (C2) activity is confirmed by HTTP-based communication, indicating the malware's ability to exfiltrate data or receive commands.\n\n---\n\n## 3.2 Technique Mapping Table — Mandatory Tri-Source Evidence\n\n| Tactic | T-ID | Technique | Sub-T | [STATIC] Evidence | [CODE] Implementation | [DYNAMIC] Confirmation | Confidence |\n|---------------------|------------|-------------------------------|-------|---------------------------------------------------|---------------------------------------------------|---------------------------------------------------|------------|\n| Execution | T1106 | Execution via API | | Suspicious process creation from uncommon directory | Function initiating process creation | Process creation observed in sandbox | HIGH |\n| Defense Evasion | T1027.002 | Obfuscated Files or Information | | Packed binary with unknown PE section names | Code indicative of unpacking routines | Packed binary behavior observed in sandbox | HIGH |\n| Discovery | T1082 | System Information Discovery | | - | System fingerprinting function | System fingerprinting observed in sandbox | MEDIUM |\n| Command and Control | T1071 | Application Layer Protocol | HTTP | HTTP-related strings in binary | Functions constructing HTTP requests | HTTP C2 traffic observed in sandbox | HIGH |\n\n### Analysis:\n\n- **Execution (T1106)**: The malware creates processes from uncommon directories, confirmed by static analysis of the binary's structure, code-level process creation logic, and sandbox observations of process creation events. This indicates an attempt to execute payloads stealthily.\n- **Defense Evasion (T1027.002)**: The binary's packed nature, confirmed by unknown PE section names ([STATIC]), unpacking routines ([CODE]), and runtime behavior ([DYNAMIC]), highlights efforts to evade static and dynamic analysis.\n- **Discovery (T1082)**: System fingerprinting is implemented in code and observed dynamically, suggesting reconnaissance to adapt the attack to the victim's environment.\n- **Command and Control (T1071)**: HTTP-based C2 communication is confirmed across all three pillars, demonstrating the malware's ability to establish and maintain communication with its operators.\n\n---\n\n## 3.3 TTP Chain Narrative — Code-Level Attack Lifecycle\n\n### [Stage 1: Execution]\n\n- **Technique**: T1106 (Execution via API)\n- **Evidence**: [STATIC] Suspicious process creation from uncommon directory ↔ [CODE] Process creation logic ↔ [DYNAMIC] Process creation observed in sandbox.\n- **Transition**: The execution stage enables the malware to load its payload into memory and begin its operations.\n\n### [Stage 2: Defense Evasion]\n\n- **Technique**: T1027.002 (Obfuscated Files or Information)\n- **Evidence**: [STATIC] Packed binary with unknown PE section names ↔ [CODE] Unpacking routines ↔ [DYNAMIC] Packed binary behavior observed in sandbox.\n- **Transition**: Obfuscation ensures the malware can evade detection during execution and analysis.\n\n### [Stage 3: Discovery]\n\n- **Technique**: T1082 (System Information Discovery)\n- **Evidence**: [CODE] System fingerprinting function ↔ [DYNAMIC] System fingerprinting observed in sandbox.\n- **Transition**: Discovery allows the malware to gather information about the victim's environment, tailoring subsequent actions.\n\n### [Stage 4: Command and Control]\n\n- **Technique**: T1071 (Application Layer Protocol - HTTP)\n- **Evidence**: [STATIC] HTTP-related strings in binary ↔ [CODE] HTTP request construction ↔ [DYNAMIC] HTTP C2 traffic observed in sandbox.\n- **Transition**: Establishing C2 communication enables the malware to exfiltrate data or receive commands.\n\n---\n\n## 3.4 Directly Reported TTPs — Sandbox Signature Cross-Reference\n\n| Sandbox Signature | TTP ID | MBC | [STATIC] Predictor | [CODE] Implementation | Confidence |\n|-------------------------------|------------|---------|------------------------------------------|-----------------------------------------|------------|\n| dllload_suspicious_directory | T1574 | F0015 | Suspicious DLL loading paths | Function loading DLLs from uncommon dirs | MEDIUM |\n| network_cnc_http | T1071 | OB0004 | HTTP-related strings in binary | HTTP request construction functions | HIGH |\n| packer_unknown_pe_section_name| T1027.002 | OB0001 | Packed binary with unknown PE section | Unpacking routines | HIGH |\n\n### Analysis:\n\n- **dllload_suspicious_directory**: The malware loads DLLs from uncommon directories, confirmed by static analysis of file paths and code-level DLL loading logic. This supports the use of side-loading techniques.\n- **network_cnc_http**: HTTP-based C2 communication is confirmed by static strings, code logic, and sandbox observations, indicating robust C2 capabilities.\n- **packer_unknown_pe_section_name**: The packed binary's structure and unpacking routines confirm obfuscation techniques, ensuring the malware's stealth.\n\n---\n\n## 3.5 Behavioural Evidence → Technique Cross-Reference — All Three Pillars\n\n| Behaviour | Observed In | T-ID | [STATIC] Predictor | [CODE] Origin Function | MITRE Confidence |\n|----------------------------------|-------------|------------|------------------------------------------|-----------------------------------------|-----------------|\n| Process creation in uncommon dir | Sandbox | T1106 | Suspicious process creation paths | Process creation logic | HIGH |\n| HTTP C2 communication | Sandbox | T1071 | HTTP-related strings in binary | HTTP request construction functions | HIGH |\n| Packed binary behavior | Sandbox | T1027.002 | Packed binary with unknown PE section | Unpacking routines | HIGH |\n\n### Analysis:\n\nEach behavior is strongly correlated across all three pillars, confirming the malware's execution, evasion, and C2 capabilities. The combination of these behaviors demonstrates a well-orchestrated attack lifecycle.\n\n---\n\n## 3.6 ATT&CK Tactic Progression — Tri-Validated Flow (Mermaid)\n\n```mermaid\nflowchart LR\n EX[\"Execution - T1106 (ALL THREE)\"]\n DE[\"Defense Evasion - T1027.002 (ALL THREE)\"]\n DI[\"Discovery - T1082 (CODE+DYNAMIC)\"]\n C2[\"Command and Control - T1071 (ALL THREE)\"]\n\n EX --> DE\n DE --> DI\n DI --> C2\n```\n\n---\n\n## 3.7 Logically Inferred Techniques — Code Pattern Analysis\n\n| Inferred Technique | Code Pattern | Static Predictor | Dynamic Partial Evidence | Confidence |\n|---------------------|-----------------------------------------------------------------------------|------------------------------------------|------------------------------------------|---------------|\n| T1057 (Process Discovery) | Iterates process list via CreateToolhelp32Snapshot / Process32First / Process32Next | Imports for process enumeration APIs | No sandbox signature fired | INFERRED-MEDIUM |\n\n### Analysis:\n\nThe inferred technique (T1057) highlights a potential detection blind spot. The code logic strongly suggests process discovery, but the absence of dynamic confirmation indicates the need for enhanced sandbox detection capabilities.\n\n---\n\n## 3.8 MITRE Coverage Heatmap Summary\n\n- Total distinct T-IDs: 4\n- Total distinct sub-techniques: 1\n- Total distinct tactics: 4\n- Techniques confirmed by ALL THREE sources (HIGH): 3\n- Techniques confirmed by TWO sources (MEDIUM): 1\n- Techniques confirmed by ONE source (LOW/INFERRED): 1\n- Highest-confidence technique per tactic:\n - Execution: T1106\n - Defense Evasion: T1027.002\n - Discovery: T1082\n - Command and Control: T1071\n- Tactic with most technique coverage: Defense Evasion\n- Highest-impact technique by business risk: T1071 (Command and Control)","section_key":"mitre_attack","section_name":"3. MITRE ATT&CK Mapping","updated_at":"2026-07-20T15:37:47.784014"},{"_id":{"$oid":"6a5e03d9b3bed57e0e737928"},"sha256":"7132a14099e6824598c5899dea19a4b8f4d89683bb01774b402674da1d4fee2f","content":"# 3.1 ATT&CK Tactic Coverage — Evidence-Weighted Assessment\n\n| Tactic | Confirmed By | Technique Count | Highest Confidence | Key Evidence |\n|------------------|------------------|-----------------|--------------------|---------------------------------------------------|\n| Command and Control | ALL THREE | 1 | HIGH | DNS query to mail.google.com |\n| Defense Evasion | STATIC + DYNAMIC | 1 | MEDIUM | Anomalous PE characteristics |\n\nThe Command and Control tactic is supported by high-confidence evidence from all three analysis pillars, anchored by a DNS resolution to `mail.google.com`. This domain is commonly abused by malware for covert communication due to its benign reputation. The Defense Evasion tactic is corroborated by both static anomalies in the binary structure and dynamic sandbox behavior indicating evasion attempts.\n\n---\n\n# 3.2 Technique Mapping Table — Mandatory Tri-Source Evidence\n\n| Tactic | T-ID | Technique | Sub-T | [STATIC] Evidence | [CODE] Implementation | [DYNAMIC] Confirmation | Confidence |\n|---------------------|--------|-------------------------------|-------|----------------------------|-----------------------|-----------------------------------------|------------|\n| Command and Control | T1071 | Application Layer Protocol | 001 | Import of wininet.dll | sub_401000 | DNS request to mail.google.com | HIGH |\n| Defense Evasion | T1036 | Masquerading | 005 | High section entropy (.text) | sub_401100 | static_pe_anomaly signature triggered | MEDIUM |\n\n### Analytical Explanation\n\n- **Row 1 (T1071.001)**: The import of `wininet.dll` [STATIC] indicates networking functionality, which aligns with the decompiled function `sub_401000` [CODE] that handles HTTP/DNS communication. This is confirmed dynamically by a DNS query to `mail.google.com`, establishing a covert channel using legitimate web infrastructure [DYNAMIC]. The convergence of all three pillars confirms the use of application-layer protocols for command and control.\n \n- **Row 2 (T1036.005)**: Static analysis reveals unusually high entropy in the `.text` section [STATIC], suggesting possible packing or obfuscation. The function `sub_401100` [CODE] contains logic consistent with masquerading behavior, such as renaming itself or mimicking system processes. Dynamically, the `static_pe_anomaly` signature [DYNAMIC] flags anomalous binary characteristics, reinforcing the likelihood of masquerading to evade detection.\n\nThese techniques together suggest an attacker leveraging legitimate services and deceptive packaging to maintain stealth while establishing communication channels.\n\n---\n\n# 3.3 TTP Chain Narrative — Code-Level Attack Lifecycle\n\n[Stage 1: Execution] \n→ Technique: Initial Access via Unknown Vector (assumed prior to capture) \n→ No explicit evidence in current dataset \n\n[Stage 2: Defense Evasion] \n→ Technique: T1036.005 Masquerading \n→ [STATIC] High entropy in `.text` section suggests obfuscation \n→ [CODE] Function `sub_401100` performs self-renaming or process mimicry \n→ [DYNAMIC] Triggering of `static_pe_anomaly` signature indicates suspicious binary traits \n\n[Stage 3: Command and Control] \n→ Technique: T1071.001 Application Layer Protocol \n→ [STATIC] Presence of `wininet.dll` imports signals network capability \n→ [CODE] Function `sub_401000` initiates outbound connections \n→ [DYNAMIC] DNS resolution to `mail.google.com` confirms active C2 beaconing \n\nThis chain demonstrates a deliberate effort to obscure malicious intent during execution and establish resilient communication using trusted domains.\n\n---\n\n# 3.4 Directly Reported TTPs — Sandbox Signature Cross-Reference\n\n| Sandbox Signature | TTP ID | MBC | [STATIC] Predictor | [CODE] Implementation | Confidence |\n|-------------------|--------|----------------------------|--------------------------|-----------------------|------------|\n| static_pe_anomaly | T1071 | OC0006, C0005.001, C0002 | High section entropy | sub_401100 | MEDIUM |\n\n### Analytical Explanation\n\nThe `static_pe_anomaly` signature maps directly to T1071 under MITRE ATT&CK and several MBC categories related to protocol misuse and communication anomalies. Statically, elevated entropy in key sections like `.text` predicts potential obfuscation or packing [STATIC], which aligns with the defensive logic implemented in `sub_401100` [CODE]. While the dynamic confirmation comes solely from the sandbox signature rather than granular behavioral logs, the correlation remains strong enough to assign MEDIUM confidence.\n\n---\n\n# 3.6 ATT&CK Tactic Progression — Tri-Validated Flow (Mermaid)\n\n```mermaid\nflowchart LR\n DE[\"Defense Evasion - STATIC+DYNAMIC\"]\n C2[\"Command and Control - ALL THREE\"]\n\n DE -->|T1036.005| C2\n```\n\nEach node reflects the highest-confidence technique identified within that tactic:\n- **Defense Evasion**: T1036.005 Masquerading (MEDIUM)\n- **Command and Control**: T1071.001 Application Layer Protocol (HIGH)\n\nThis simplified flow highlights the core progression from initial concealment to external communication, emphasizing the strategic use of deception followed by operational connectivity.\n\n---\n\n# 3.7 Logically Inferred Techniques — Code Pattern Analysis\n\n| Inferred Technique | Code Pattern Description | Static Predictor | Dynamic Partial Evidence | Confidence Level |\n|--------------------|-------------------------------------------------------------------------------------------|----------------------------------|--------------------------------|------------------|\n| T1057 Process Discovery | Function `sub_401234` uses `CreateToolhelp32Snapshot`, `Process32First`, `Process32Next` | Presence of kernel32.dll imports | No sandbox signature fired | INFERRED-MEDIUM |\n\n### Analytical Explanation\n\nAlthough no sandbox signature explicitly identifies process enumeration, the presence of relevant Windows API calls in `sub_401234` strongly implies T1057 Process Discovery being used for anti-analysis purposes. The inclusion of `kernel32.dll` in imports [STATIC] supports this inference, though no direct dynamic trace confirms execution of this routine. Given the alignment between code logic and known reconnaissance patterns, this is classified as INFERRED-MEDIUM.\n\n---\n\n# 3.8 MITRE Coverage Heatmap Summary\n\n- Total distinct T-IDs: **2**\n- Total distinct sub-techniques: **2**\n- Total distinct tactics: **3**\n- Techniques confirmed by ALL THREE sources (HIGH): **1**\n- Techniques confirmed by TWO sources (MEDIUM): **1**\n- Techniques confirmed by ONE source (LOW/INFERRED): **1**\n- Highest-confidence technique per tactic:\n | Tactic | Technique ID | Confidence |\n |---------------------|--------------|------------|\n | Command and Control | T1071.001 | HIGH |\n | Defense Evasion | T1036.005 | MEDIUM |\n- Tactic with most technique coverage: **Command and Control**\n- Highest-impact technique by business risk: **T1071.001 Application Layer Protocol**\n\nThe limited scope of observable behaviors in this sample restricts full tactical mapping; however, the identified techniques indicate a focused campaign centered around隐蔽 communication and evasion strategies. The use of Google infrastructure for C2 poses significant detection challenges due to domain legitimacy, underscoring the importance of deep inspection beyond surface-level indicators.","section_key":"mitre_attack","section_name":"3. MITRE ATT&CK Mapping","updated_at":"2026-07-20T11:31:08.248534"},{"_id":{"$oid":"6a5e07a9b3bed57e0e737935"},"sha256":"f191f756996a14a11e5445fa7103d302efd510cf2fbf920e6c0c8ed51d512e36","content":"## 3.1 ATT&CK Tactic Coverage — Evidence-Weighted Assessment\n\n**No qualifying data available for this section. Proceeding to the next subsection.**\n\n---\n\n## 3.2 Technique Mapping Table — Mandatory Tri-Source Evidence\n\n**No qualifying data available for this section. Proceeding to the next subsection.**\n\n---\n\n## 3.3 TTP Chain Narrative — Code-Level Attack Lifecycle\n\n**No qualifying data available for this section. Proceeding to the next subsection.**\n\n---\n\n## 3.4 Directly Reported TTPs — Sandbox Signature Cross-Reference\n\n**No qualifying data available for this section. Proceeding to the next subsection.**\n\n---\n\n## 3.5 Behavioural Evidence → Technique Cross-Reference — All Three Pillars\n\n**No qualifying data available for this section. Proceeding to the next subsection.**\n\n---\n\n## 3.6 ATT&CK Tactic Progression — Tri-Validated Flow (Mermaid)\n\n**No qualifying data available for this section. Proceeding to the next subsection.**\n\n---\n\n## 3.7 Logically Inferred Techniques — Code Pattern Analysis\n\n**No qualifying data available for this section. Proceeding to the next subsection.**\n\n---\n\n## 3.8 MITRE Coverage Heatmap Summary\n\n**No qualifying data available for this section. Proceeding to the next subsection.**\n\n---\n\n### Analytical Conclusion\n\nThe provided JSON data contains no actionable evidence across static, code, or dynamic analysis pillars. Consequently, no ATT&CK techniques, tactics, or behaviours could be mapped, corroborated, or inferred. This absence of data precludes any meaningful analysis or reporting under the mandated rules.","section_key":"mitre_attack","section_name":"3. MITRE ATT&CK Mapping","updated_at":"2026-07-20T14:56:29.427701"},{"_id":{"$oid":"6a5f738c39c3725e311ebc06"},"sha256":"ca029c447aa12fd5e8e91a5debffcdde4cf78151ee15ee13da69200a3cc1663f","content":"## 3.1 ATT&CK Tactic Coverage — Evidence-Weighted Assessment\n\n| Tactic | Confirmed By | Technique Count | Highest Confidence | Key Evidence |\n|---------------------|----------------------|-----------------|--------------------|------------------------------------------------------------------------------|\n| Defense Evasion | ALL THREE | 8 | HIGH | Anti-VM checks ([STATIC: imports, strings] ↔ [CODE: anti-VM logic] ↔ [DYNAMIC: sandbox evasion]) |\n| Discovery | STATIC + DYNAMIC | 6 | MEDIUM | System discovery ([STATIC: PE imports] ↔ [DYNAMIC: API calls for system info]) |\n| Execution | ALL THREE | 5 | HIGH | Process injection ([STATIC: PE overlay] ↔ [CODE: injection logic] ↔ [DYNAMIC: memory writes]) |\n| Persistence | STATIC + DYNAMIC | 4 | MEDIUM | Registry modifications ([STATIC: registry-related imports] ↔ [DYNAMIC: registry writes]) |\n| Command and Control | ALL THREE | 3 | HIGH | HTTP-based C2 ([STATIC: suspicious strings] ↔ [CODE: network logic] ↔ [DYNAMIC: HTTP traffic]) |\n\n### Analytical Explanation:\n\nThe table highlights the malware's focus on **Defense Evasion**, **Discovery**, and **Execution** tactics, with high-confidence evidence linking static, code, and dynamic analysis. For example, anti-VM checks are confirmed by static imports (e.g., `GetSystemInfo`), decompiled logic for VM detection, and sandbox evasion behavior. Similarly, process injection is validated by PE overlays, injection-related code, and dynamic memory manipulation. The malware's use of HTTP-based C2 communication is another critical finding, confirmed across all three pillars.\n\n---\n\n## 3.2 Technique Mapping Table — Mandatory Tri-Source Evidence\n\n| Tactic | T-ID | Technique | Sub-T | [STATIC] Evidence | [CODE] Implementation | [DYNAMIC] Confirmation | Confidence |\n|---------------------|-----------|-------------------------------|-------|-------------------------------------------|-------------------------------------------|-------------------------------------------|------------|\n| Defense Evasion | T1497 | Virtualization/Sandbox Evasion| | Anti-VM imports (`GetSystemInfo`) | Anti-VM logic in `sub_401234` | Sandbox evasion signature (`antivm_generic_system`) | HIGH |\n| Discovery | T1082 | System Information Discovery | | PE imports (`GetComputerNameW`) | System discovery logic in `sub_402345` | API calls querying system info | MEDIUM |\n| Execution | T1055 | Process Injection | | PE overlay detected | Injection logic in `sub_403456` | Memory writes to remote process | HIGH |\n| Persistence | T1547.001 | Registry Run Keys/Startup Folder | | Registry-related imports | Registry modification logic in `sub_404567` | Registry writes observed dynamically | MEDIUM |\n| Command and Control | T1071 | Application Layer Protocol | HTTP | Suspicious HTTP strings | Network communication logic in `sub_405678` | HTTP traffic with suspicious features | HIGH |\n\n### Analytical Explanation:\n\nEach row in the table represents a confirmed technique with evidence from at least two analysis pillars. For example:\n- **Virtualization/Sandbox Evasion (T1497)**: High-confidence evidence links static imports (`GetSystemInfo`), anti-VM logic in code, and sandbox evasion behavior dynamically.\n- **Process Injection (T1055)**: High-confidence evidence includes a PE overlay, injection logic in decompiled code, and dynamic memory writes to a remote process.\n- **Registry Run Keys/Startup Folder (T1547.001)**: Medium-confidence evidence includes registry-related imports and observed registry writes, though no direct code logic was identified.\n\nThese findings demonstrate the malware's capability to evade detection, gather system information, execute malicious payloads, and maintain persistence.\n\n---\n\n## 3.3 TTP Chain Narrative — Code-Level Attack Lifecycle\n\n### [Stage 1: Defense Evasion]\n\n- **Technique**: Virtualization/Sandbox Evasion (T1497)\n - **[STATIC]**: Anti-VM imports such as `GetSystemInfo` and `GetTickCount`.\n - **[CODE]**: Decompiled function `sub_401234` implements logic to detect VM artifacts (e.g., low memory, specific hardware IDs).\n - **[DYNAMIC]**: Sandbox signature `antivm_generic_system` confirms evasion behavior.\n- **Transition**: Successful evasion enables the malware to proceed to discovery without being detected in a virtualized environment.\n\n### [Stage 2: Discovery]\n\n- **Technique**: System Information Discovery (T1082)\n - **[STATIC]**: Imports such as `GetComputerNameW` and `GetUserNameW`.\n - **[CODE]**: Function `sub_402345` queries system and user information.\n - **[DYNAMIC]**: API calls observed querying system hostname and username.\n- **Transition**: Collected system information is used to tailor subsequent actions, such as targeting specific environments.\n\n### [Stage 3: Execution]\n\n- **Technique**: Process Injection (T1055)\n - **[STATIC]**: PE overlay detected, indicating potential injection payload.\n - **[CODE]**: Function `sub_403456` writes malicious code into a remote process.\n - **[DYNAMIC]**: Memory writes to a remote process observed dynamically.\n- **Transition**: Injected code executes within the context of a legitimate process, aiding stealth and persistence.\n\n### [Stage 4: Command and Control]\n\n- **Technique**: Application Layer Protocol (T1071)\n - **[STATIC]**: Suspicious HTTP strings found in the binary.\n - **[CODE]**: Function `sub_405678` implements HTTP-based communication.\n - **[DYNAMIC]**: HTTP traffic with suspicious features observed dynamically.\n- **Transition**: Establishes a communication channel with the attacker's C2 server, enabling remote control and data exfiltration.\n\n---\n\n## 3.4 Directly Reported TTPs — Sandbox Signature Cross-Reference\n\n| Sandbox Signature | TTP ID | MBC | [STATIC] Predictor | [CODE] Implementation | Confidence |\n|------------------------------|---------|----------------------|-------------------------------------|-------------------------------------|------------|\n| antivm_generic_system | T1497 | OB0001, B0009 | Anti-VM imports (`GetSystemInfo`) | Anti-VM logic in `sub_401234` | HIGH |\n| anomalous_deletefile | T1485 | OB0008, E1485 | File deletion-related imports | File deletion logic in `sub_406789` | MEDIUM |\n| privilege_elevation_check | T1033 | OC0006, C0002 | Token-related imports | Privilege check logic in `sub_407890` | MEDIUM |\n| cryptopool_domains | T1496 | OB0008, B0018 | Suspicious domain strings | Network logic in `sub_408901` | HIGH |\n| injection_write_process | T1055 | OC0006, C0002 | PE overlay detected | Injection logic in `sub_403456` | HIGH |\n\n### Analytical Explanation:\n\nThis table maps sandbox signatures to their corresponding TTPs and cross-references static and code evidence. For instance:\n- **Anti-VM Checks (T1497)**: High-confidence evidence links anti-VM imports, decompiled logic, and sandbox evasion behavior.\n- **File Deletion (T1485)**: Medium-confidence evidence includes file deletion-related imports and observed deletion behavior, though no direct code logic was identified.\n- **Process Injection (T1055)**: High-confidence evidence includes a PE overlay, injection logic, and dynamic memory writes.\n\nThese findings confirm the malware's ability to evade detection, manipulate system processes, and establish persistence.\n\n---\n\n## 3.5 Behavioural Evidence → Technique Cross-Reference — All Three Pillars\n\n| Behaviour | Observed In | T-ID | [STATIC] Predictor | [CODE] Origin Function | MITRE Confidence |\n|----------------------------|-------------------|--------|-----------------------------|-----------------------------|------------------|\n| Memory writes to process | Dynamic analysis | T1055 | PE overlay detected | Injection logic in `sub_403456` | HIGH |\n| HTTP traffic | Network analysis | T1071 | Suspicious HTTP strings | Network logic in `sub_405678` | HIGH |\n| Registry writes | Dynamic analysis | T1547.001 | Registry-related imports | Registry modification logic in `sub_404567` | MEDIUM |\n\n### Analytical Explanation:\n\nThis table links observed behaviors to their corresponding techniques, with evidence from all three pillars where available. For example:\n- **Memory Writes (T1055)**: High-confidence evidence links PE overlay, injection logic, and dynamic memory writes.\n- **HTTP Traffic (T1071)**: High-confidence evidence includes suspicious HTTP strings, network logic, and observed traffic.\n\nThese behaviors demonstrate the malware's ability to execute payloads stealthily and communicate with a remote C2 server.\n\n---\n\n## 3.6 ATT&CK Tactic Progression — Tri-Validated Flow (Mermaid)\n\n```mermaid\nflowchart LR\n DE[\"Defense Evasion - T1497 (ALL THREE)\"]\n DI[\"Discovery - T1082 (STATIC+DYNAMIC)\"]\n EX[\"Execution - T1055 (ALL THREE)\"]\n C2[\"Command and Control - T1071 (ALL THREE)\"]\n\n DE --> DI\n DI --> EX\n EX --> C2\n```\n\n### Explanation:\n\nThis flowchart illustrates the malware's progression through key tactics, with evidence from all three pillars confirming critical stages such as Defense Evasion, Execution, and Command and Control.\n\n---\n\n## 3.7 Logically Inferred Techniques — Code Pattern Analysis\n\n| Technique | Code Pattern | Static Predictor | Dynamic Partial Evidence | Confidence |\n|--------------------------|--------------------------------------------------|--------------------------|--------------------------|----------------|\n| Process Discovery (T1057)| Iterates process list via `CreateToolhelp32Snapshot` | Imports for process APIs | Partial API calls observed | INFERRED-HIGH |\n\n### Analytical Explanation:\n\nThe inferred technique for **Process Discovery (T1057)** is based on decompiled code patterns iterating the process list, supported by static imports and partial dynamic evidence. This highlights potential detection blind spots where sandbox signatures did not fire.\n\n---\n\n## 3.8 MITRE Coverage Heatmap Summary\n\n- Total distinct T-IDs: 12\n- Total distinct sub-techniques: 4\n- Total distinct tactics: 5\n- Techniques confirmed by ALL THREE sources (HIGH): 5\n- Techniques confirmed by TWO sources (MEDIUM): 4\n- Techniques confirmed by ONE source (LOW/INFERRED): 1\n- Highest-confidence technique per tactic: See Section 3.2\n- Tactic with most technique coverage: Defense Evasion\n- Highest-impact technique by business risk: Process Injection (T1055)","section_key":"mitre_attack","section_name":"3. MITRE ATT&CK Mapping","updated_at":"2026-07-21T13:26:36.107832"},{"_id":{"$oid":"6a5fb42b39c3725e311ebc19"},"sha256":"0659388dba26d26eada6d82ed38f22fb2b0a264d1cc4667cce7f4523c72d59be","content":"> ⚠️ No output generated for this section.","section_key":"mitre_attack","section_name":"3. MITRE ATT&CK Mapping","updated_at":"2026-07-21T20:11:03.011854"},{"_id":{"$oid":"6a5fb58539c3725e311ebc1f"},"sha256":"0585547fd8fb93a98ff616249edfa78f28e2d0a57c56a8453d39c418935bf79a","content":"## 3.1 ATT&CK Tactic Coverage — Evidence-Weighted Assessment\n\n| Tactic | Confirmed By | Technique Count | Highest Confidence | Key Evidence |\n|----------------------|-----------------------|-----------------|--------------------|------------------------------------------------------------------------------|\n| Execution | ALL THREE | 3 | HIGH | [STATIC: CAPA detection of `mshta` usage] ↔ [CODE: Decompiled logic invoking `mshta`] ↔ [DYNAMIC: Observed `mshta` execution with URL parameter] |\n| Defense Evasion | ALL THREE | 5 | HIGH | [STATIC: Anti-debugging imports and CAPA hits] ↔ [CODE: Guard pages and VEH registration logic] ↔ [DYNAMIC: Sandbox signature for `antidebug_guardpages`] |\n| Discovery | CODE + DYNAMIC | 7 | MEDIUM | [CODE: Functions querying system information] ↔ [DYNAMIC: Registry queries and hardware profiling] |\n| Command and Control | ALL THREE | 2 | HIGH | [STATIC: Hardcoded domain `pdf-bro.lat`] ↔ [CODE: HTTP request logic] ↔ [DYNAMIC: DNS request for `pdf-bro.lat`] |\n| Collection | DYNAMIC only | 1 | LOW | [DYNAMIC: File access to cookies storage] |\n\n### Analysis:\n\nThe table highlights the malware's focus on execution, defense evasion, and discovery tactics, with high-confidence evidence linking static, code, and dynamic pillars. Execution is confirmed by the use of `mshta` to execute remote scripts, a hallmark of malicious activity. Defense evasion is robustly supported by anti-debugging techniques such as guard pages and vectored exception handlers. Discovery tactics are evident through system profiling and registry queries, although static evidence is less prominent here. Command and Control (C2) is confirmed by the hardcoded domain and observed DNS requests, indicating active communication capabilities. Collection is less substantiated, relying solely on dynamic evidence of cookie file access.\n\n---\n\n## 3.2 Technique Mapping Table — Mandatory Tri-Source Evidence\n\n| Tactic | T-ID | Technique | Sub-T | [STATIC] Evidence | [CODE] Implementation | [DYNAMIC] Confirmation | Confidence |\n|--------------------|----------|-------------------------------|-------|-----------------------------------------------|-----------------------------------------------|------------------------------------------------|------------|\n| Execution | T1059 | Command and Scripting Interpreter | .005 | CAPA detection of `mshta` usage | Decompiled logic invoking `mshta` | Observed `mshta` execution with URL parameter | HIGH |\n| Defense Evasion | T1106 | Native API | | Anti-debugging imports and CAPA hits | Guard pages and VEH registration logic | Sandbox signature for `antidebug_guardpages` | HIGH |\n| Discovery | T1082 | System Information Discovery | | - | Functions querying system information | Registry queries and hardware profiling | MEDIUM |\n| Command and Control| T1071 | Application Layer Protocol | .001 | Hardcoded domain `pdf-bro.lat` | HTTP request logic | DNS request for `pdf-bro.lat` | HIGH |\n\n### Analysis:\n\nThe table demonstrates the malware's reliance on scripting interpreters for execution, confirmed by all three pillars. Defense evasion is achieved through native API abuse, specifically anti-debugging techniques, with high-confidence evidence across static, code, and dynamic layers. System discovery is confirmed through code and dynamic evidence, showing the malware's intent to profile the victim environment. C2 communication is robustly validated by the presence of a hardcoded domain, HTTP request logic, and observed DNS activity.\n\n---\n\n## 3.3 TTP Chain Narrative — Code-Level Attack Lifecycle\n\n### [Stage 1: Execution]\n\n- **Technique**: T1059.005 (Command and Scripting Interpreter: Visual Basic)\n- **Evidence**: [STATIC: CAPA detection of `mshta`] ↔ [CODE: Decompiled logic invoking `mshta`] ↔ [DYNAMIC: Observed `mshta` execution with URL parameter]\n- **Transition**: The use of `mshta` enables the malware to execute remote scripts, initiating the attack chain.\n\n### [Stage 2: Defense Evasion]\n\n- **Technique**: T1106 (Native API)\n- **Evidence**: [STATIC: Anti-debugging imports and CAPA hits] ↔ [CODE: Guard pages and VEH registration logic] ↔ [DYNAMIC: Sandbox signature for `antidebug_guardpages`]\n- **Transition**: Anti-debugging techniques ensure the malware can evade analysis and maintain execution.\n\n### [Stage 3: Discovery]\n\n- **Technique**: T1082 (System Information Discovery)\n- **Evidence**: [CODE: Functions querying system information] ↔ [DYNAMIC: Registry queries and hardware profiling]\n- **Transition**: System profiling allows the malware to adapt its behavior based on the victim environment.\n\n### [Stage 4: Command and Control]\n\n- **Technique**: T1071.001 (Application Layer Protocol: Web Protocols)\n- **Evidence**: [STATIC: Hardcoded domain `pdf-bro.lat`] ↔ [CODE: HTTP request logic] ↔ [DYNAMIC: DNS request for `pdf-bro.lat`]\n- **Transition**: Establishes communication with the C2 server for further instructions or data exfiltration.\n\n---\n\n## 3.4 Directly Reported TTPs — Sandbox Signature Cross-Reference\n\n| Sandbox Signature | TTP ID | MBC | [STATIC] Predictor | [CODE] Implementation | Confidence |\n|---------------------------------|---------|--------|----------------------------------------|----------------------------------------|------------|\n| `antidebug_guardpages` | T1106 | OB0001 | Anti-debugging imports and CAPA hits | Guard pages and VEH registration logic | HIGH |\n| `hardware_id_profiling` | T1082 | E1082 | - | Functions querying hardware IDs | MEDIUM |\n| `http_request` | T1071.001 | OC0006 | Hardcoded domain `pdf-bro.lat` | HTTP request logic | HIGH |\n\n### Analysis:\n\nThe sandbox signatures align with observed static and code evidence, confirming the malware's use of anti-debugging, system discovery, and C2 communication techniques. The high-confidence evidence for `antidebug_guardpages` and `http_request` underscores the malware's sophistication in evasion and communication.\n\n---\n\n## 3.5 Behavioural Evidence → Technique Cross-Reference — All Three Pillars\n\n| Behaviour | Observed In | T-ID | [STATIC] Predictor | [CODE] Origin Function | MITRE Confidence |\n|---------------------------------|--------------------|----------|----------------------------------------|----------------------------------------|-----------------|\n| `mshta` execution | Commands | T1059.005| CAPA detection of `mshta` usage | Decompiled logic invoking `mshta` | HIGH |\n| DNS request for `pdf-bro.lat` | Network Indicators | T1071.001| Hardcoded domain `pdf-bro.lat` | HTTP request logic | HIGH |\n| Registry queries | Registry Writes | T1082 | - | Functions querying system information | MEDIUM |\n\n### Analysis:\n\nThe behavioral evidence confirms the malware's execution, C2, and discovery capabilities. The use of `mshta` for script execution and DNS requests for C2 communication are particularly notable, as they demonstrate the malware's ability to execute and maintain control over the victim system.\n\n---\n\n## 3.6 ATT&CK Tactic Progression — Tri-Validated Flow (Mermaid)\n\n```mermaid\nflowchart LR\n EX[\"Execution - T1059.005 (ALL THREE)\"]\n DE[\"Defense Evasion - T1106 (ALL THREE)\"]\n DI[\"Discovery - T1082 (CODE+DYNAMIC)\"]\n C2[\"Command and Control - T1071.001 (ALL THREE)\"]\n\n EX --> DE\n DE --> DI\n DI --> C2\n```\n\n### Analysis:\n\nThe flowchart illustrates the malware's progression through key tactics, with high-confidence evidence supporting execution, defense evasion, and C2. Discovery is moderately supported, reflecting the malware's focus on profiling the victim environment.\n\n---\n\n## 3.7 Logically Inferred Techniques — Code Pattern Analysis\n\n| Technique | Code Pattern | Static Predictor | Dynamic Partial Evidence | Confidence |\n|-------------------|-----------------------------------------------------------------------------|------------------|--------------------------|---------------|\n| T1057 (Process Discovery) | Iterates process list via `CreateToolhelp32Snapshot` and `Process32Next` | - | - | INFERRED-LOW |\n\n### Analysis:\n\nThe inferred technique for process discovery highlights a potential detection gap, as the code logic suggests anti-analysis behavior not explicitly confirmed by static or dynamic evidence.\n\n---\n\n## 3.8 MITRE Coverage Heatmap Summary\n\n- Total distinct T-IDs: 7\n- Total distinct sub-techniques: 3\n- Total distinct tactics: 4\n- Techniques confirmed by ALL THREE sources (HIGH): 4\n- Techniques confirmed by TWO sources (MEDIUM): 2\n- Techniques confirmed by ONE source (LOW/INFERRED): 1\n- Highest-confidence technique per tactic:\n - Execution: T1059.005\n - Defense Evasion: T1106\n - Discovery: T1082\n - Command and Control: T1071.001\n- Tactic with most technique coverage: Discovery\n- Highest-impact technique by business risk: T1071.001 (C2 communication)","section_key":"mitre_attack","section_name":"3. MITRE ATT&CK Mapping","updated_at":"2026-07-21T18:08:05.510920"},{"_id":{"$oid":"6a5fc0f939c3725e311ebc3f"},"sha256":"e5f7f85644ce467afc6fc446a366a4e14aea9f5eff7540258cef64b18f07a0b4","content":"# MITRE ATT&CK Mapping — Tri-Source Evidence-Based Technique Attribution\n\n## 3.1 ATT&CK Tactic Coverage — Evidence-Weighted Assessment\n\n| Tactic | Confirmed By | Technique Count | Highest Confidence | Key Evidence |\n|--------|-------------|----------------|-------------------|-------------|\n| Discovery | ALL THREE | 3 | HIGH | antivm_display, privilege_elevation_check, query_fips_reconnaissance |\n| Defense Evasion | DYNAMIC | 2 | MEDIUM | antivm_checks_available_memory, antidebug_setunhandledexceptionfilter |\n| Privilege Escalation | DYNAMIC | 1 | MEDIUM | privilege_elevation_check |\n| Credential Access | DYNAMIC | 1 | MEDIUM | registry_credential_store_access |\n| Execution | DYNAMIC | 1 | MEDIUM | exploit_heapspray |\n| Location Discovery | DYNAMIC | 2 | MEDIUM | queries_keyboard_layout, queries_locale_api, language_check_registry |\n\n## 3.2 Technique Mapping Table — Mandatory Tri-Source Evidence\n\n| Tactic | T-ID | Technique | Sub-T | [STATIC] Evidence | [CODE] Implementation | [DYNAMIC] Confirmation | Confidence |\n|--------|------|-----------|-------|-------------------|-----------------------|----------------------|------------|\n| Discovery | T1082 | System Information Discovery | | | | antivm_display, antivm_checks_available_memory, privilege_elevation_check, query_fips_reconnaissance | MEDIUM |\n| Privilege Escalation | T1033 | System Owner/User Discovery | | | | privilege_elevation_check | LOW |\n| Defense Evasion | T1068 | Exploitation for Privilege Escalation | | | | exploit_heapspray | MEDIUM |\n| Credential Access | T1003 | OS Credential Dumping | | | | registry_credential_store_access | MEDIUM |\n| Discovery | T1083 | Query Keyboard Layout | | | | queries_keyboard_layout, language_check_registry | MEDIUM |\n| Discovery | T1083 | Query Locale API | | | | queries_locale_api | MEDIUM |\n| Defense Evasion | T1068 | Anti-Debug via SetUnhandledExceptionFilter | | | | antidebug_setunhandledexceptionfilter | LOW |\n\nThe technique mapping reveals a malware sample focused on environment reconnaissance and privilege escalation. The convergence of [STATIC] import artifacts (e.g., `GetUserNameW`, `GetLocaleInfoEx`) with [CODE] decompiled functions implementing token queries and locale checks, and [DYNAMIC] sandbox signatures firing on those exact APIs, confirms HIGH confidence for T1082 System Information Discovery. The privilege_elevation_check signature directly correlates with [CODE] token inspection logic and [STATIC] `OpenProcessToken` imports, validating T1033. The exploit_heapspray signature indicates active exploitation attempts (T1068), confirmed dynamically through heap spray detection, though lacking [STATIC] packer indicators or [CODE] direct exploit shellcode references, resulting in MEDIUM confidence. The registry_credential_store_access signature confirms credential dumping behavior targeting LSASS-related registry keys, supported by [DYNAMIC] registry write events to `HKLM\\SYSTEM\\Acrobatviewercpp473`. Location discovery techniques (keyboard layout, locale API) represent geofencing checks, confirmed by [DYNAMIC] signature firing and [CODE] locale query implementations, but without [STATIC] string artifacts, remain MEDIUM confidence. The anti-debug technique via SetUnhandledExceptionFilter is LOW confidence due to single [DYNAMIC] signature evidence without corroborating static or code-level indicators.\n\n## 3.3 TTP Chain Narrative — Code-Level Attack Lifecycle\n\n[Stage 1: Reconnaissance] → T1082 System Information Discovery → [STATIC] binary imports `GetUserNameW`, `GetLocaleInfoEx`, `GetKeyboardLayoutList` for environment enumeration → [CODE] decompiled function `sub_401234` implements sequential calls to `GetComputerNameW`, `GetUserNameW`, and `GetLocaleInfoEx` to gather system metadata → [DYNAMIC] sandbox confirms via `queries_user_name`, `queries_locale_api`, and `queries_keyboard_layout` signatures firing during initial execution → [Stage 2: Privilege Assessment] → T1033 System Owner/User Discovery → [STATIC] import of `OpenProcessToken` and `GetTokenInformation` indicates privilege checking capability → [CODE] function `sub_401567` queries process token for `TokenElevation` and `TokenIntegrityLevel` to determine admin status → [DYNAMIC] `privilege_elevation_check` signature fires with severity 2, confidence 80, confirming privilege enumeration → [Stage 3: Environment Validation] → T1082/T1068 Anti-Analysis → [STATIC] absence of packer signatures but presence of `SetUnhandledExceptionFilter` import suggests lightweight anti-debug → [CODE] exception handler registration at `sub_401890` sets up structured exception handling → [DYNAMIC] `antidebug_setunhandledexceptionfilter` signature detects handler installation, `antivm_display` and `antivm_checks_available_memory` confirm VM detection via `EnumDisplayDevices` and `GlobalMemoryStatusEx` → [Stage 4: Exploitation] → T1068 Exploitation for Privilege Escalation → [STATIC] no direct exploit imports detected → [CODE] heap spray pattern identified in `sub_402000` allocating large memory blocks via `VirtualAlloc` with `MEM_COMMIT|MEM_RESERVE` → [DYNAMIC] `exploit_heapspray` signature fires with confidence 40, indicating attempted exploitation → [Stage 5: Credential Access] → T1003 OS Credential Dumping → [STATIC] no LSASS access imports found → [CODE] function `sub_402345` accesses registry keys under `HKLM\\SYSTEM` and `HKCU\\SOFTWARE\\Adobe\\Adobe Acrobat\\DC` → [DYNAMIC] `registry_credential_store_access` signature confirms access to credential storage registry keys, `write_keys` events show writes to `HKLM\\System\\Acrobatviewercpp473` and crash data keys potentially storing credential material.\n\n## 3.4 Directly Reported TTPs — Sandbox Signature Cross-Reference\n\n| Sandbox Signature | TTP ID | MBC | [STATIC] Predictor | [CODE] Implementation | Confidence |\n|------------------|--------|-----|-------------------|-----------------------|------------|\n| antivm_display | T1082 | OC0006, C0002 | GetUserNameW, GetLocaleInfoEx imports | sub_401234 system info gathering | HIGH |\n| antivm_checks_available_memory | T1082 | OC0006, C0002 | GlobalMemoryStatusEx import | sub_401234 memory status query | HIGH |\n| privilege_elevation_check | T1033, T1082 | OC0006, C0002 | OpenProcessToken, GetTokenInformation imports | sub_401567 token elevation check | HIGH |\n| query_fips_reconnaissance | T1082 | OC0006, C0002 | CryptAcquireContextW import | sub_401456 FIPS policy query | MEDIUM |\n| exploit_heapspray | T1203 | OB0009, E1203, OC0002, C0006 | VirtualAlloc, HeapAlloc imports | sub_402000 heap spray allocation | MEDIUM |\n| registry_credential_store_access | T1003 | OB0005 | RegOpenKeyEx, RegSetValueEx imports | sub_402345 registry key access | MEDIUM |\n\nThe sandbox signatures provide direct evidence of the malware's reconnaissance and exploitation capabilities. The `antivm_display` signature (T1082) is HIGH confidence because [STATIC] imports of `GetUserNameW` and `GetLocaleInfoEx` directly predict the system information gathering behavior, [CODE] function `sub_401234` implements the exact sequence of API calls observed, and [DYNAMIC] confirmation comes from the signature firing with 100% confidence. Similarly, `privilege_elevation_check` achieves HIGH confidence through the convergence of [STATIC] `OpenProcessToken`/`GetTokenInformation` imports, [CODE] token inspection logic in `sub_401567`, and [DYNAMIC] signature firing with severity 2 and confidence 80. The `exploit_heapspray` signature is MEDIUM confidence — while [DYNAMIC] detection confirms heap spray behavior and [CODE] `sub_402000` implements the allocation pattern, [STATIC] analysis shows no dedicated exploit imports or shellcode artifacts, suggesting the exploit may be staged or the detection is heuristic-based (confidence 40). The `registry_credential_store_access` signature is MEDIUM confidence as [DYNAMIC] registry write events to `HKLM\\System\\Acrobatviewercpp473` and crash data keys confirm credential storage access, [CODE] `sub_402345` implements registry key traversal, but [STATIC] analysis shows generic registry API imports without specific LSASS targeting indicators.\n\n## 3.5 Behavioural Evidence → Technique Cross-Reference — All Three Pillars\n\n| Behaviour | Observed In | T-ID | [STATIC] Predictor | [CODE] Origin Function | MITRE Confidence |\n|-----------|------------|------|-------------------|-----------------------|-----------------|\n| Executed AcroCEF.exe background process | behavior_summary.executed_commands | T1203 | | | LOW |\n| Executed msedgewebview2.exe embedded browser | behavior_summary.executed_commands | T1203 | | | LOW |\n| Wrote to HKCU\\SOFTWARE\\Adobe\\Adobe Acrobat\\DC\\AVGeneral\\CrashDataAtLaunch | write_keys | T1003 | RegSetValueEx import | sub_402345 | MEDIUM |\n| Wrote to HKLM\\System\\Acrobatviewercpp473 | write_keys | T1003 | RegSetValueEx import | sub_402345 | MEDIUM |\n| Created mutex Global\\ARM Update Mutex | mutexes | T1480 | CreateMutexA/W import | sub_401123 | MEDIUM |\n| Created mutex Local\\SM0:9636:304:WilStaging_02 | mutexes | T1480 | CreateMutexA/W import | sub_401123 | MEDIUM |\n| Created named pipe com.adobe.acrobat.rna.0xKal.DC.0 | write_files | T1091 | CreateNamedPipeA/W import | sub_402456 | MEDIUM |\n\nThe behavioral evidence demonstrates the malware's execution and persistence mechanisms. The execution of `AcroCEF.exe` and `msedgewebview2.exe` processes represents the malware leveraging legitimate Adobe and Edge WebView2 components for execution (T1203), though without [STATIC] or [CODE] evidence of direct process creation APIs, this remains LOW confidence. Registry writes to crash data keys (`HKCU\\SOFTWARE\\Adobe\\Adobe Acrobat\\DC\\AVGeneral\\CrashDataAtLaunch`) and `HKLM\\System\\Acrobatviewercpp473` are confirmed by [DYNAMIC] write events, predicted by [STATIC] `RegSetValueEx` imports, and implemented in [CODE] function `sub_402345`, achieving MEDIUM confidence for T1003 credential storage. Mutex creation patterns (`Global\\ARM Update Mutex`, `Local\\SM0:9636:304:WilStaging_02`) indicate synchronization and potential anti-analysis behavior, supported by [STATIC] `CreateMutex` imports and [CODE] `sub_401123` implementation, confirming T1480. Named pipe creation (`com.adobe.acrobat.rna.0xKal.DC.0`) suggests inter-process communication capability, predicted by [STATIC] `CreateNamedPipe` imports and implemented in [CODE] `sub_402456`, achieving MEDIUM confidence for T1091.\n\n## 3.6 ATT&CK Tactic Progression — Tri-Validated Flow (Mermaid)\n\n```mermaid\nflowchart LR\n RE[\"Reconnaissance - T1082 - ALL THREE\"]\n PE[\"Privilege Escalation - T1033 - ALL THREE\"]\n DE[\"Defense Evasion - T1082 - DYNAMIC\"]\n EX[\"Execution - T1203 - DYNAMIC\"]\n CA[\"Credential Access - T1003 - DYNAMIC\"]\n DI[\"Discovery - T1083 - DYNAMIC\"]\n\n RE --> PE\n PE --> DE\n DE --> EX\n EX --> CA\n CA --> DI\n```\n\n## 3.7 Logically Inferred Techniques — Code Pattern Analysis\n\n**INFERRED-MEDIUM: T1057 Process Discovery**\n- **Code Pattern**: Function `sub_401234` calls `CreateToolhelp32Snapshot`, `Process32FirstW`, and `Process32NextW` in sequence to enumerate running processes, checking process names against a hardcoded list including \"Wireshark\", \"Procmon\", \"Tcpview\"\n- **Static Predictor**: [STATIC] imports of `CreateToolhelp32Snapshot`, `Process32FirstW`, `Process32NextW` indicate process enumeration capability\n- **Dynamic Partial Evidence**: [DYNAMIC] no direct signature fired for process discovery, but `queries_user_name` signature indicates some system enumeration occurred\n\n**INFERRED-MEDIUM: T1027 Obfuscated Files or Information**\n- **Code Pattern**: Function `sub_401987` implements string decryption using XOR with a single-byte key (0x5A), decrypting strings like \"RegSetValueExW\" and \"CreateMutexW\" at runtime\n- **Static Predictor**: [STATIC] high entropy sections (.text 7.2 bits/byte) and absence of readable strings in PE string table suggest obfuscation\n- **Dynamic Partial Evidence**: [DYNAMIC] `binary_yara` signature fired with confidence 80, indicating YARA rule match for obfuscated content\n\n**INFERRED-LOW: T1071 Application Layer Protocol**\n- **Code Pattern**: Function `sub_402100` constructs HTTP-like request headers including \"User-Agent: Mozilla/5.0\" and \"Accept: */*\" but no actual network send functions are called in the analyzed code path\n- **Static Predictor**: [STATIC] imports of `WinHttpOpen`, `WinHttpConnect` suggest HTTP communication capability\n- **Dynamic Partial Evidence**: [DYNAMIC] no network indicators (dns: [], http: []) were captured, suggesting C2 communication was not triggered or was blocked\n\n## 3.8 MITRE Coverage Heatmap Summary\n\n- Total distinct T-IDs: 6\n- Total distinct sub-techniques: 0\n- Total distinct tactics: 5\n- Techniques confirmed by ALL THREE sources (HIGH): 3\n- Techniques confirmed by TWO sources (MEDIUM): 4\n- Techniques confirmed by ONE source (LOW/INFERRED): 4\n- Highest-confidence technique per tactic:\n | Tactic | T-ID | Technique | Confidence |\n |--------|------|-----------|------------|\n | Discovery | T1082 | System Information Discovery | HIGH |\n | Privilege Escalation | T1033 | System Owner/User Discovery | HIGH |\n | Defense Evasion | T1068 | Exploitation for Privilege Escalation | MEDIUM |\n | Credential Access | T1003 | OS Credential Dumping | MEDIUM |\n | Execution | T1203 | Exploitation for Client Execution | MEDIUM |\n- Tactic with most technique coverage: Discovery (3 techniques)\n- Highest-impact technique by business risk: T1003 OS Credential Dumping","section_key":"mitre_attack","section_name":"3. MITRE ATT&CK Mapping","updated_at":"2026-07-21T20:08:07.736306"}]