Extracted

Extracted

• • Target

    BootstrapperNew.exe

  • Size

    2.9MB

  • MD5

    2326d97462601f0bf84459a19a23a307

  • SHA1

    b6d153b9984ad82202997707fe5e4fd135d3afb6

  • SHA256

    03cc93bdaefa6e5db157062dd90b796ff6a8f2f172e3be278e604ba9808f9ce4

  • SHA512

    fccf56201ca30da42c15d769a1af38d87f8bdc0562327096893e81738ad7a4a7e3c00cb425144e1ffa10d9e0e0f39fdd7e5287f74f88e4aa971aa3cc3e988568

  • SSDEEP

    49152:fCPqFzmYUMGs67ueIJdjo+fR60CqtZ4HdBJqlCmir3C7uXwonp1UECFgBT:f/DXVAu/kE69HHdB8lnirSSJqE+gT

  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

  • Enumerates connected drives

    Attempts to read the root path of hard drives other than the default C: drive.

  • Legitimate hosting services abused for malware hosting/C2

  • Obfuscated Files or Information: Command Obfuscation

    Adversaries may obfuscate content during command execution to impede detection.

    defense_evasion

  • 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