From ac11afc5a459a0b9c496f8822c5beb0994aa86c3 Mon Sep 17 00:00:00 2001 From: S3N4T0R <121706460+S3N4T0R-0X0@users.noreply.github.com> Date: Mon, 27 Jul 2026 03:58:51 -0400 Subject: [PATCH] Update README.md --- North Koreans APT/Labyrinth Chollima/README.md | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) diff --git a/North Koreans APT/Labyrinth Chollima/README.md b/North Koreans APT/Labyrinth Chollima/README.md index d630744..bcec701 100644 --- a/North Koreans APT/Labyrinth Chollima/README.md +++ b/North Koreans APT/Labyrinth Chollima/README.md @@ -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. |