General

  • Target

    krampus (1).zip

  • Size

    2.4MB

  • Sample

    240507-qwslrahg4v

  • MD5

    a6ff8476134d69ac2805e9fe6fc8a00d

  • SHA1

    474821d771064683c3fb243b4ab36b3907b3d423

  • SHA256

    d3b861fab82e305bc0ed504731aa44fbe4717ef1536c7e7a3049b722d95e4c12

  • SHA512

    90f3070e11432194661fffb566526c5bd02d6dfa5daefd8e9f23b5d8ea46fb5e2a06d60385edcd4f93fe401d696f642dea21fb5686e426b37aff44ede417192d

  • SSDEEP

    49152:yWRN8FlMWhpRkI91qIQ855/rMIzpwpibr5K6Rb2zAlosZ3QQw0Nlzwpp:yWRmFlMELkI3FzMIzpwpiRKQbjG0r5Ns

Malware Config

Targets

    • Target

      krampus (1).zip

    • Size

      2.4MB

    • MD5

      a6ff8476134d69ac2805e9fe6fc8a00d

    • SHA1

      474821d771064683c3fb243b4ab36b3907b3d423

    • SHA256

      d3b861fab82e305bc0ed504731aa44fbe4717ef1536c7e7a3049b722d95e4c12

    • SHA512

      90f3070e11432194661fffb566526c5bd02d6dfa5daefd8e9f23b5d8ea46fb5e2a06d60385edcd4f93fe401d696f642dea21fb5686e426b37aff44ede417192d

    • SSDEEP

      49152:yWRN8FlMWhpRkI91qIQ855/rMIzpwpibr5K6Rb2zAlosZ3QQw0Nlzwpp:yWRmFlMELkI3FzMIzpwpiRKQbjG0r5Ns

    • Command and Scripting Interpreter: PowerShell

      Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

    • Downloads MZ/PE file

    • Sets file execution options in registry

    • Executes dropped EXE

    • Loads dropped DLL

    • Registers COM server for autorun

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Checks whether UAC is enabled

    • Checks system information in the registry

      System information is often read in order to detect sandboxing environments.

    • Drops file in System32 directory

    • Suspicious use of NtCreateThreadExHideFromDebugger

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Enterprise v15

Tasks