Extracted

Extracted

• • Target

    Credential Guard & VBS Key Isolation.exe

  • Size

    55KB

  • MD5

    dac20ddb2cfb3cb89ce5bcd907c796df

  • SHA1

    84ec40d9a683ed62a25f8e1e570b0a2ee3987af0

  • SHA256

    9a727d5cfc4c67cb0d3c0f8195087042fd04b83bb29cbe0c0439a4094a2adfc7

  • SHA512

    5a3199f76bc18eb20a1e9e7d0bdbadbff3deaa06ec00b3aee33360f1497cc22ae0bc1a125aeaadcef1647c5f03cb386bfbc62375ca5e70ac57c01168043c8762

  • SSDEEP

    768:iPZlFQ+v3HM88U6lB5hNfLShjqmEsbYt+UcYzF6t/X62GJhJOZouejI:iPK+vMhHatbYZJzG/gbOGu7

  Score

  10^/10

  xwormbootkitdefense_evasiondiscoveryexecutionpersistencerattrojan

  • Detect Xworm Payload

  • Suspicious use of NtCreateUserProcessOtherParentProcess

  • Xworm

    Xworm is a remote access trojan written in C#.

    trojanratxworm

  • Xworm family

    xworm

  • Blocklisted process makes network request

  • Command and Scripting Interpreter: PowerShell

    Run Powershell and hide display window.

    execution

  • Downloads MZ/PE file

  • Sets service image path in registry

    persistence

  • Checks BIOS information in registry

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

  • Checks computer location settings

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

  • Executes dropped EXE

  • Indicator Removal: Clear Windows Event Logs

    Clear Windows Event Logs to hide the activity of an intrusion.

    defense_evasion

  • Adds Run key to start application

    persistence

  • Legitimate hosting services abused for malware hosting/C2

  • Writes to the Master Boot Record (MBR)

    Bootkits write to the MBR to gain persistence at a level below the operating system.

    bootkitpersistence

  • Drops file in System32 directory

  • Suspicious use of SetThreadContext

  behavioral1