Overview

overview

10

Static

static

10

GameClient.exe

windows10-1703-x64

Sharing

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General

  • Target
    GameClient.exe
  • Size 79KB
  • Sample240528-pynvxafa37
  • SHA256 2d2e27dc029c468d7a019fcde90fb2ffddd0bf02cafa0357cd86310645bb7473
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
xwormexecutionpersistencerattrojan

Malware Config

Extracted

Family

  • xworm

C2

  • https://pastebin.com/raw/qaWffTar:5

Attributes
  • Install_directory

    %AppData%

  • install_file

    svchost.exe

  • pastebin_url

    https://pastebin.com/raw/qaWffTar

Targets

    • Target
      GameClient.exe
    • Size 79KB
    • SHA256 2d2e27dc029c468d7a019fcde90fb2ffddd0bf02cafa0357cd86310645bb7473
    • MD5 SHA1 SHA512 SSDEEP
    Score
    10/10
    xwormexecutionpersistencerattrojan

    • 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

    • 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

    • Drops startup file

    • Executes dropped EXE

    • 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.

    behavioral1

MITRE ATT&CK Enterprise v15

Tasks