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

• d0b43e830e825dc2fa5815ac035f698a
• c4af352d193e62dedbbafcb74aba78c0

SHA-256

• 64ae9a93872bf6cf3338887483568d17676bc2b1a449903fc0f681e975086cd8
• 9969e4c5b2496651be60078e79551a2f8a4440c3d150fac77a7e29621a766924

SHA1

• 5056ac394686df90d16ea2000634e2a25dac7715
• f0fba53440d995e559cb129aa8b2c99430b3a7c9

Remediation

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