Rewterz Threat Alert – Remcos RAT – Active IOCs

Severity

High

Analysis Summary

Remcos malware has been operating since 2016. This RAT was originally promoted as genuine software for remote control of Microsoft Windows from XP onwards, and is frequently found in phishing attempts due to its capacity to completely infect an afflicted machine. Remcos malware attacks Windows systems and provides the attacker complete control over the machine.It is frequently distributed by malicious documents or archive files that contain scripts or executables. Remcos, like other RATs, offers the threat actor complete access over the infected PCs which allow them to record keystrokes, passwords, and other critical information. Remcos incorporates various obfuscation and anti-debugging techniques to evade detection. Regular updates of its features by its creators make this malware a challenging adversary.

Impact

• Breach of: Victim’s machine information (OS version, computer name, system type, product name, primary adapter).
• User information (user access, user profile, user name, user domain)
• Processor information (processor revision number, processor level, processor identifier, processor architecture)

Indicators of Compromise

MD5

• 0e510b8aa3c1023214aede6eff05f8a6
• 5fa8c19a5d4794a3e788a993334c69b3

SHA-256

• 5b5e3c05228509199c257d659beafeeffc842d4fb35ede6b33d9d2b26721d4ad
• 2a70f2e81f357515212d6c13faec095988ab319450a8cf315df1246a51f11926

SHA-1

• b5421ade663e04b87f80d076047163912552f93f
• 79b5b58bac2f477549082e248bd7a80b17f72f44

Remediation

• Block all threat indicators at your respective controls.
• Search for IOCs in your environment.