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2025-08-24 19:15:46 -04:00
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North Koreans APT/Ricochet Chollima/README.md
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@@ -12,14 +12,21 @@ The attacker impersonated a North Korea-focused expert based in South Korea, and
<img width="702" height="354" alt="imageedit_3_2570117683" src="https://github.com/user-attachments/assets/cf10354c-b377-4baf-b217-76f01b353f15" />
1. Social Engineering Technique: Create document file masquerading as information on North Korean troops deployed to Russia.
1. Social Delivery Technique: Create document file masquerading as information on North Korean troops deployed to Russia.
2. malicious shortcut: make single shortcut (LNK) file. This LNK file executes malicious code and shares the same name as the ZIP archive, with only the file extension being different.
3. PowerShell commands: The shortcut (LNK) file is configured to run via PowerShell commands embedded arguments.
2. Malicious shortcut: make single shortcut (LNK) file. This LNK file executes malicious code and shares the same name as the ZIP archive, with only the file extension being different.
4. toy.bat: When the PowerShell command in “toy03.bat” file is executed, it loads “toy02.dat” file created in temporary folder, functioning as a loader.
5.
3. PowerShell Commands: The shortcut (LNK) file is configured to run via PowerShell commands embedded arguments.
4. Toy.Bat: When the PowerShell command in “toy03.bat” file is executed, it loads “toy02.dat” file created in temporary folder, functioning as a loader.
5. shellcode injection: As a result the shellcode is loaded into memory and the memory area becomes executable.
6. Dropbox C2: Get Command and Control through payload uses the Dropbox API to upload data including command output to Dropbox.