General

  • Target
    xdfc69f5afbb39afb797e228f76e91e24d84a1d2dc5bf06370f701b816680acb6.exe
  • Size 1.7MB
  • Sample260701-fxzrcaez4n
  • SHA256 dfc69f5afbb39afb797e228f76e91e24d84a1d2dc5bf06370f701b816680acb6
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Targets

    • Target
      xdfc69f5afbb39afb797e228f76e91e24d84a1d2dc5bf06370f701b816680acb6.exe
    • Size 1.7MB
    • SHA256 dfc69f5afbb39afb797e228f76e91e24d84a1d2dc5bf06370f701b816680acb6
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Family: DcRat

      DarkCrystal(DC) is a new .NET RAT active since June 2019 capable of loading additional plugins.

    • Modifies WinLogon for persistence

    • Process spawned unexpected child process

      This typically indicates the parent process was compromised via an exploit or macro.

    • Command and Scripting Interpreter: PowerShell

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

    • Checks computer location settings

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

    • Executes dropped EXE

    • Adds Run key to start application

    • Checks whether UAC is enabled

    • SmartAssembly .NET packer

      Detects SmartAssembly .NET packer.

MITRE ATT&CK Enterprise v16

Tasks