General

  • Target
    aee60a48843f6adae8ec15e49760f5c22a25d6bf6fab6d4293f8ea644874bb2b
  • Size 1.1MB
  • Sample260826-nhw1xavthy
  • SHA256 aee60a48843f6adae8ec15e49760f5c22a25d6bf6fab6d4293f8ea644874bb2b
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Targets

    • Target
      aee60a48843f6adae8ec15e49760f5c22a25d6bf6fab6d4293f8ea644874bb2b
    • Size 1.1MB
    • SHA256 aee60a48843f6adae8ec15e49760f5c22a25d6bf6fab6d4293f8ea644874bb2b
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • DCRat payload

    • 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.

    • Drops file in Drivers directory

    • 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

    • Drops file in System32 directory

    • Executes a VBScript file via the Windows Script Host.

    • SmartAssembly .NET packer

      Detects SmartAssembly .NET packer.

MITRE ATT&CK Enterprise v16

Tasks