General

  • Target
    Extreme injector.exe
  • Size 3.8MB
  • Sample250126-rdjrkatjft
  • SHA256 cc92c665e4e26f4bf880e69666f019f9d568533510d8ca3d5e4651c1e121231e
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Targets

    • Target
      Extreme injector.exe
    • Size 3.8MB
    • SHA256 cc92c665e4e26f4bf880e69666f019f9d568533510d8ca3d5e4651c1e121231e
    • MD5 SHA1 SHA512 SSDEEP
    • DcRat

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

    • Dcrat family

    • Process spawned unexpected child process

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

    • DCRat payload

      Detects payload of DCRat, commonly dropped by NSIS installers.

    • 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

    • Loads dropped DLL

    • Adds Run key to start application

    • Checks whether UAC is enabled

    • Legitimate hosting services abused for malware hosting/C2

    • Drops file in System32 directory

MITRE ATT&CK Enterprise v15

Tasks