Rewterz Threat Alert – Phobos Ransomware – Active IOCs

Severity

High

Analysis Summary

Phobos Ransomware is based on the Dharma malware that first appeared at the beginning of 2019. It spreads into several systems via compromised Remote Desktop Protocol (RDP) connections. This malware does not use any UAC bypass methods. Unlike other cybercrime gangs that go after big hunts, Phobos creators go after smaller firms that don’t have sufficient funding to pay massive ransoms. This ransomware usually targets healthcare providers, with victims in the United States, Seychelles, Portugal, Brazil, Indonesia, Germany, Romania, and Japan. Its perpetrators demand a little ransom payment, which appeals to victims and enhances the chances of payment. The average Phobos ransom payment in July 2021 was $54,700.

Impact

• File Encryption
• Data Exfiltration

Indicators of Compromise

MD5

• 4cbcf650c75c6cd0cc16ed24c3b24de6

SHA-256

• 782d18b840c4ea06c51b9dfae728ddd918f38abbb98583c0ac5eb637b0127d8a

SHA1

• 223624b11878f4daaa7461cdb63b019a09d7f9bc

Remediation

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