Overview

overview

10

Static

static

10

Shellbag anylizer.exe

windows7-x64

10

Shellbag anylizer.exe

windows10-2004-x64

10

Sharing

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General

  • Target
    Shellbag anylizer.exe
  • Size 69KB
  • Sample240613-1q1ehs1gkd
  • SHA256 8f2d3eeab5e5d807acff4be9b7d6b41340f0c8a891baa094543d10e65ccec7f2
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
xwormevasionexecutionpersistencerattrojan

Malware Config

Extracted

Family

  • xworm

Attributes
  • Install_directory

    %Temp%

  • install_file

    svchost.exe

  • pastebin_url

    https://pastebin.com/raw/qEVZXv39

Targets

    • Target
      Shellbag anylizer.exe
    • Size 69KB
    • SHA256 8f2d3eeab5e5d807acff4be9b7d6b41340f0c8a891baa094543d10e65ccec7f2
    • MD5 SHA1 SHA512 SSDEEP
    Score
    10/10
    xwormexecutionpersistencerattrojanevasion

    • 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

    • UAC bypass

      evasiontrojan

    • Xworm

      Xworm is a remote access trojan written in C#.

      trojanratxworm

    • 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

    • Checks computer location settings

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

    • Drops startup file

    • Adds Run key to start application

      persistence

    • Legitimate hosting services abused for malware hosting/C2

    • Looks up external IP address via web service

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

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks