Rewterz Threat Alert – Gamaredon APT – Active IOCs
January 24, 2022Rewterz Threat Alert – RedLine Stealer – Active IOCs
January 24, 2022Rewterz Threat Alert – Gamaredon APT – Active IOCs
January 24, 2022Rewterz Threat Alert – RedLine Stealer – Active IOCs
January 24, 2022Severity
High
Analysis Summary
Researchers have analyzed the Dark Crystal RAT capabilities and C2 message format. Unlike a real RAT server, this one does not have a user interface to allow the attacker to pick and launch commands. Instead, it has a pre-scripted command list that it sends to the RAT. When the server starts up, it uses the Python BaseHTTPServer to begin listening for incoming web requests. Incoming POST requests are assumed to hold a file that the RAT is uploading to the server; this server assumes all file uploads are screenshots and saves them to “screen.png”. The server sends four types of commands in sequence: first, it hides the desktop icons; then, it causes the string “Hello this is tech support” to be spoken; next, it displays a message box asking for a password; finally, it launches the Windows Calculator.
Impact
- Data Theft
- Exposure of Sensitive Data
Indicators of Compromise
MD5
- cfa1c7da22074be04b699a186cf8616b
- 9b6e603d08ab129a83b0e5c6c9867414
- afdf852515e10992e7f8b3f643ad0b27
SHA-256
- 8f934e965b1a1fa5fe5f6c32bbae9fd62b9b5c39274bddc17c8c9922f1c7a3cc
- 6187b7445fff5343ef45810b7bb1eb699b98479bd58044559e37e5ca67ffd33b
- 2b9ac4b1b80df1654cee367a618a5c536d4c97c7b2956fe8fc18815264ff79db
SHA-1
- e22ce36e6cc9a4b7140c530fe5a619d507560105
- a9bc5eee56380ba466c43055dc7f0122df34f40e
- 2f4d3c8e843e2fae1393e7704033290bfdd55130
Remediation
- Block the threat indicators at their respective controls.
- Search for IOCs in your environment.