General

  • Target
    F67B08ACB8AE930C53B21771A17F4E28B528EB31A7078.exe
  • Size 1.4MB
  • Sample221116-d8rh1ach7s
  • SHA256 f67b08acb8ae930c53b21771a17f4e28b528eb31a70781cbdce31fef6c97b00a
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Targets

    • Target
      F67B08ACB8AE930C53B21771A17F4E28B528EB31A7078.exe
    • Size 1.4MB
    • SHA256 f67b08acb8ae930c53b21771a17f4e28b528eb31a70781cbdce31fef6c97b00a
    • MD5 SHA1 SHA512 SSDEEP
    • 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.

    • Executes dropped EXE

    • Checks computer location settings

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

    • Loads dropped DLL

    • Adds Run key to start application

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Enterprise v6

Tasks