General

  • Target

    menu.exe

  • Size

    309KB

  • Sample

    241118-ck6scawdqn

  • MD5

    b7a65ac9cc1f6ac490080b604dca0209

  • SHA1

    40faa498a2e24a65b8ba74fd8123e63e2432f71f

  • SHA256

    061282d0c5d8967e46c0b0739488fbefd996615a9059844274b1cb4df83b52bb

  • SHA512

    fea5efae6766efd76d1b504ea516dd14eef955e84fec12a9035752366b7d36e078064b2088e04bee30ce267baa899a1b87f5a023316e59d4ecba7387a61943ed

  • SSDEEP

    6144:QGXEB3uR4D7P05EkRTwEur5447h/PcHnUSFIT7JHoI0E7YPWs3kZy:QapW/PqbTw3FcHUSFU1v0E7v

Malware Config

Extracted

Family

xworm

C2

85.209.133.220:111

Attributes
  • Install_directory

    %Userprofile%

  • install_file

    system.exe

Targets

    • Target

      menu.exe

    • Size

      309KB

    • MD5

      b7a65ac9cc1f6ac490080b604dca0209

    • SHA1

      40faa498a2e24a65b8ba74fd8123e63e2432f71f

    • SHA256

      061282d0c5d8967e46c0b0739488fbefd996615a9059844274b1cb4df83b52bb

    • SHA512

      fea5efae6766efd76d1b504ea516dd14eef955e84fec12a9035752366b7d36e078064b2088e04bee30ce267baa899a1b87f5a023316e59d4ecba7387a61943ed

    • SSDEEP

      6144:QGXEB3uR4D7P05EkRTwEur5447h/PcHnUSFIT7JHoI0E7YPWs3kZy:QapW/PqbTw3FcHUSFU1v0E7v

    • Detect Xworm Payload

    • Xworm

      Xworm is a remote access trojan written in C#.

    • Xworm family

    • Blocklisted process makes network request

    • Blocks application from running via registry modification

      Adds application to list of disallowed applications.

    • Command and Scripting Interpreter: PowerShell

      Run Powershell and hide display window.

    • Disables Task Manager via registry modification

    • Disables cmd.exe use via registry modification

    • Checks computer location settings

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

    • Drops startup file

    • Adds Run key to start application

    • Looks up external IP address via web service

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

    • Drops file in System32 directory

MITRE ATT&CK Enterprise v15

Tasks