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August 24, 2022Severity
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
remittance@nvoicepay-ach[.]com
MD5
- 135a1b45054fd8c36e854fb696d7391a
- c135c2dad6b8d014bfd512fd94d31200
- 5a060aa2e0e82ee0b03b65ce9ed52c2f
- 4b04a1aed8a1398e7d0139f367917d8e
SHA-256
- 7e59886a1137a4e857507cc61b150d5637ff71b09af43deeb70d1c9644ce465e
- e805a1a3bfff781d5f38af1cef377669b44354c40a4edbe5d0aad6c1e2d6e406
- a224dcb4bd0ac20f6241885b3cd0ca5f552dc6ddcca360d27204bd9c47cec4a7
- 90a5c56cc9847dde12d4fd035f90f5afcc6235336d55e16c48e943365dfe85c2
SHA-1
- 80e56aad8cf5281d4374ae3b3f99ae7bd3f46198
- 9769b8c4d5e9fe2c04044f80410dac8fa079a9f8
- c8ef799fb03c6ae42b6f7590d7733c80f54c7c5a
- c38842cddf2bfae8d84a843dc876e4432cd4b734
URL
http[:]//mckinneytighe[.]com/newmon/calc/Attack[.]jpg
http[:]//mckinneytighe[.]com/newmon/calc/Client[.]vbs
Remediation
- Block all threat indicators at your respective controls.
- Search for IOCs in your environment.