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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

  • ee5c921f15ceb506c0e82081cc6866fe

SHA-256

  • ee70aa43b12005bbcb5ae983780fa777889ef7e0d11fa971bc6d1e27bd6d0b32

SHA1

  • a77cdbe421db6a4b02912a2f60cbd36289b0bfbe

Remediation

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