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North Koreans APT/Labyrinth Chollima/README.md
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@@ -84,3 +84,21 @@ This file is a modified version of a legitimate DLL file used by the SumatraPDF.
The BURNBOOK includes a network connectivity check that prevents the trojanized reader from displaying the decrypted PDF lure if it cannot reach google[.]com.
![Screenshot from 2024-09-21 12-53-34](https://github.com/user-attachments/assets/517c7639-dcb9-4ac9-9491-e96163742c14)
## MITRE ATT&CK Techniques
| Technique ID | Technique | Implementation |
|---------------|-----------|----------------|
| **T1566.001** | Phishing: Spearphishing Attachment | Delivers a weaponized Microsoft Office document to initiate the attack chain. |
| **T1204.002** | User Execution: Malicious File | Relies on the victim opening the malicious document and enabling macro execution. |
| **T1059.005** | Command and Scripting Interpreter: Visual Basic | Uses an obfuscated VBA macro to execute the initial payload. |
| **T1027** | Obfuscated Files or Information | Hides malicious logic using VBA obfuscation, encoded strings, and macro evasion techniques. |
| **T1105** | Ingress Tool Transfer | Downloads the next-stage payload from the attacker-controlled infrastructure. |
| **T1055.001** | Process Injection: Dynamic-link Library Injection | Injects the payload into a legitimate process to evade detection. |
| **T1547.001** | Registry Run Keys / Startup Folder | Establishes persistence through Windows Registry Run keys. |
| **T1071.001** | Application Layer Protocol: Web Protocols | Uses HTTP/HTTPS for Command and Control communications. |
| **T1132** | Data Encoding | Protects C2 traffic using Base64 and TLS. |
| **T1036** | Masquerading | Disguises payloads as legitimate Windows components using trusted filenames and metadata. |
| **T1497** | Virtualization/Sandbox Evasion | Detects virtualized and sandboxed environments before executing the payload. |
| **T1082** | System Information Discovery | Collects host information to profile the victim before continuing execution. |