General

  • Target

    ec21aa9e54a3a986e8abb83ba03b9209d0743c368629144155894ac0441698a5N

  • Size

    1.5MB

  • Sample

    241004-p8ae9szaph

  • MD5

    551bb93b115d30fd78e5a83900381e20

  • SHA1

    cd075318bb809299c4453ae4b3b0a8cbcc0a5b7b

  • SHA256

    ec21aa9e54a3a986e8abb83ba03b9209d0743c368629144155894ac0441698a5

  • SHA512

    3a5837a408ee5093b71303eb8fe31169d984f1b69ff6a2b524bd5553bdc97f19a5669274c2cca216942925c8cb441bd57b604799e4a6aa9078601911684bbed3

  • SSDEEP

    24576:0NNUtQhWhtqDfDXQdy+N+gfQqRsgFlDRluQ70eJiVbWpR:EzhWhCXQFN+0IEuQgyiVK

Malware Config

Targets

    • Target

      ec21aa9e54a3a986e8abb83ba03b9209d0743c368629144155894ac0441698a5N

    • Size

      1.5MB

    • MD5

      551bb93b115d30fd78e5a83900381e20

    • SHA1

      cd075318bb809299c4453ae4b3b0a8cbcc0a5b7b

    • SHA256

      ec21aa9e54a3a986e8abb83ba03b9209d0743c368629144155894ac0441698a5

    • SHA512

      3a5837a408ee5093b71303eb8fe31169d984f1b69ff6a2b524bd5553bdc97f19a5669274c2cca216942925c8cb441bd57b604799e4a6aa9078601911684bbed3

    • SSDEEP

      24576:0NNUtQhWhtqDfDXQdy+N+gfQqRsgFlDRluQ70eJiVbWpR:EzhWhCXQFN+0IEuQgyiVK

    • 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.

    • UAC bypass

    • 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

MITRE ATT&CK Enterprise v15

Tasks