Extracted

• • Target

    fatality_loader.rar

  • Size

    956KB

  • MD5

    5c917c1945a53e6c6fd9e55c52a5071f

  • SHA1

    33829463306b1ea8d8997c136c7ad87467773cef

  • SHA256

    fda69ccb7e8acf085194e1359b1facf3b7c8f5b8eca43172a2a199d22aa675a9

  • SHA512

    69d4e041c83e2298c1c8f56a48dee9be249ae4ffbd84b75a94203015cfde21998b8f798798de55dd9ab1813550c2442d89a84e1586a65c8c96d8f64513353e43

  • SSDEEP

    24576:Rej8HegWnDJNfJJB8XWQ/zx7raihPUOOORYgZ:S8HfWDJNGXZ/Nra4rpOgZ

  Score

  10^/10

  xwormbootkitdiscoveryevasionexecutionpersistencerattrojanupx

  • Contains code to disable Windows Defender

    A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.

  • Detect Xworm Payload

  • Modifies Windows Defender Real-time Protection settings

    evasiontrojan

  • Suspicious use of NtCreateUserProcessOtherParentProcess

  • Xworm

    Xworm is a remote access trojan written in C#.

    trojanratxworm

  • Xworm family

    xworm

  • Boot or Logon Autostart Execution: Active Setup

    Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

    persistence

  • Command and Scripting Interpreter: PowerShell

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

    execution

  • Disables Task Manager via registry modification

    evasion

  • Drops startup file

  • Executes dropped EXE

  • 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.

  • Looks up external IP address via web service

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Writes to the Master Boot Record (MBR)

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

    bootkitpersistence

  • Drops autorun.inf file

    Malware can abuse Windows Autorun to spread further via attached volumes.

  • UPX packed file

    Detects executables packed with UPX/modified UPX open source packer.

    upx
  behavioral1