General

  • Target
    EAX Advanced HD.rar
  • Size 2.8MB
  • Sample260914-e65hhsstcx
  • SHA256 c17deb3159afa6cc3b26863de0aa8be542fac24a42573802a8f293f5b9cabc84
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • umbral

Version
  • v1.3

C2
  • https://discord.com/api/webhooks/1548723145387544596/arUdv6tkx5u1Qh42y_3rSjjSl6kw6I3-oD3L5zJDhUHxHXwHxTUy7VRKR2Akg6d4DNck

Targets

    • Target
      EAX Advanced HD/EAX Advanced HD.exe
    • Size 2.2MB
    • SHA256 925c8fa085c56e92bf3762409cbddf9750bea788a8dfb88edd3725a9e39add64
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Detects Umbral payload

    • Family: Umbral

      Umbral stealer is an open-source modular stealer written in C#.

    • Command and Scripting Interpreter: PowerShell

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

    • Disables one or more Microsoft Defender components

      Uses the Powershell Set-MpPreference cmdlet to disable one or more Microsoft Defender components.

    • Drops file in Drivers directory

    • Checks computer location settings

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

    • Disables automatic submission of suspicious files to Microsoft by Windows Defender

      Uses the Powershell Set-MpPreference cmdlet to prevent Windows Defender from automatically sending files to Microsoft for analysis.

    • Executes dropped EXE

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Looks up external IP address via web service

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

    • Target
      EAX Advanced HD/Guna.UI2.dll
    • Size 2.1MB
    • SHA256 6d876b257a97995d21072acd44580633468516121145cc218277edc18f971030
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    1/10
    • Target
      EAX Advanced HD/Melanchall.DryWetMidi.dll
    • Size 778KB
    • SHA256 ad4ac36ecd26a0dd9c79ed0fadd6a9a18fcbdef0032af22f083e9430e1c84e87
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    1/10
    • Target
      EAX Advanced HD/Melanchall_DryWetMidi_Native32.dll
    • Size 56KB
    • SHA256 080346c638e219ec7cd4748e370e5e11931ed3a228c17f76d84c4d10ba9c9e6f
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    3/10
    • Target
      EAX Advanced HD/Melanchall_DryWetMidi_Native64.dll
    • Size 65KB
    • SHA256 80ca89af931e43642a125ec82e253d9bd7002088d000daba6e0661cdad89f5aa
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    1/10
    • Target
      EAX Advanced HD/Melanchall_DryWetMidi_Native64.dylib
    • Size 88KB
    • SHA256 aa08c542e77b045fa1e00d4feab21080ceb415c4b6c343b0dbc5704d1fb02f92
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    3/10
    • Target
      EAX Advanced HD/VoicemeeterRemote.dll
    • Size 156KB
    • SHA256 5d85a8e00c714a707a65671936fb49611f4e7751a9065c618804ed5ca47872cb
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    3/10
    • Target
      EAX Advanced HD/VoicemeeterRemote64.dll
    • Size 188KB
    • SHA256 6c108f99c955ec963702dba37739d70c31c9ce4d77758b312c0233a1f435f4fb
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    1/10

MITRE ATT&CK Enterprise v16

Tasks