Rewterz Threat Alert – Phobos Ransomware – Active IOC

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

• 4c8679645b0e6b3749a1cc7d5917bde8

SHA-256

• d3565f751197a40d3f16180bc4b405b546e51503b2474ab15145276ceba2f202

SHA1

• ead682ca1356dcd6e6de96f551fbe3676cdc0981

Remediation

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