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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

  • 336e11346f73a09b1a7e117fa2542558
  • 5235a9ab9fdfb520489032bf44d1f8ea

SHA-256

  • 1f2c57feb6fcb80fe02d53778fa7c6b3bcba0319229fe9b9ff725a24d939c2b6
  • 34e1a82f7334c825aab19a21d94361c3225ee8ad9a2027830aeea7d82f59ca15

SHA1

  • dc7dccdeb25715e2652168f4b1853485410dee4f
  • 2abd05a0a0b65d5b7f8acad36a7d8ecd4a5dcb11

Remediation

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