General

  • Target
    vvininit.exe
  • Size 31.0MB
  • Sample261017-e4g97swzbx
  • SHA256 5d6760d29fc5e1e1661d58b4d9db2c36ff7a2970761ee6080e896da145659d58
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Targets

    • Target
      vvininit.exe
    • Size 31.0MB
    • SHA256 5d6760d29fc5e1e1661d58b4d9db2c36ff7a2970761ee6080e896da145659d58
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Detects SentinelRAT payload

    • Family: SentinelRAT

      SentinelRAT is a Windows remote access tool written in C#.

    • Modifies firewall policy service

    • Command and Scripting Interpreter: PowerShell

      Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

    • Disables RegEdit via registry modification

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Checks whether UAC is enabled

    • Contacts third-party web service commonly abused for C2

      Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Executes a VBScript file via the Windows Script Host.

MITRE ATT&CK Enterprise v16

Tasks