Extracted

• • Target
    Security.exe
  • Size 488KB
  • SHA256 d3ddea55a7fdb26efcf9d220940191fa07ed291d1b7dce2c7f6f157575886ebb
  • MD5 f8862a71544afeafbd2ed09e19e33b50
  • SHA1 beff8d7435af5b6dcc54bb47fb1b5a61a5faa4bf
  • SHA512 3f16e8b0076698bb2dcbf651fb1227192ac4ebd6a960097f26620f073c5c4e7180703c631e5a11929dc5d00cbd02a89273ba79369d117fb3533ee7f8fe632033
  • SSDEEP 12288:SgFYH9GgqEyGocGjPrW/XbQaqK3FDRlSU3zf90v:gHogRy9cGe/XZbCazf
  • TLSH
    T151B423D9D3F51036DABF03302B73E252931669B8AAA8E30C5557021FD8EA8C5E04677F
  • MD5 SHA1 SHA512 SSDEEP TLSH

  Score

  10^/10

  bootkitdefense_evasiondiscoveryexecutionxwormpersistencerattrojan

  • Detect Xworm Payload

  • Family: Xworm

    Xworm is a remote access trojan written in C#.

    trojanratxworm

  • Suspicious use of NtCreateUserProcessOtherParentProcess

  • Sets service image path in registry

    This determines the executable launched when a service starts. It can be used to establish persistence.

    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

  • Command and Scripting Interpreter: PowerShell

    Using powershell.exe command.

    execution

  • Enumerates connected drives

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

  • 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

  behavioral1behavioral2