General

  • Target
    xb38ef3f9cd8368575754482f80eeef6e1d751422c685835b919d33e71d6fd08c.exe
  • Size 1.7MB
  • Sample260511-bfjatact6r
  • SHA256 b38ef3f9cd8368575754482f80eeef6e1d751422c685835b919d33e71d6fd08c
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Targets

    • Target
      xb38ef3f9cd8368575754482f80eeef6e1d751422c685835b919d33e71d6fd08c.exe
    • Size 1.7MB
    • SHA256 b38ef3f9cd8368575754482f80eeef6e1d751422c685835b919d33e71d6fd08c
    • 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.

    • Adds Run key to start application

    • Checks whether UAC is enabled

    • SmartAssembly .NET packer

      Detects SmartAssembly .NET packer.

MITRE ATT&CK Enterprise v16

Tasks