General

  • Target

    XWorm V5.6.7z

  • Size

    18.5MB

  • Sample

    250420-1debhstxet

  • MD5

    ea35b74bbe3cf8de1ddbd5ab10ada9b1

  • SHA1

    6f20dd8865e84581ddfa7d4666bffeb812f2deed

  • SHA256

    7c431981e1962c71f936fc53951982071462f853f53c92dc3d4103ee5e3efe70

  • SHA512

    d9296919eec861a1e8ea72b5d590e8d6092a188208bda0f17ebb52744fbb702391022d25a51bbea041eb4db9f9d8c48ac3a0a2b14c4a5ed792c2914a7b657504

  • SSDEEP

    393216:ACEYC65G+SwHO1JoCzXq5i+dDmpu06beWxEkNgwTZDZerBjkDGp5:6YC65G1wHezB+Ypt6beWES6rBjkDGp5

Malware Config

Extracted

Family

xworm

Version

5.0

C2

127.0.0.1:7000

Mutex

M7FqVOzijgtcg6Xt

Attributes
  • Install_directory

    %AppData%

  • install_file

    XClient.exe

aes.plain

Extracted

Family

xworm

C2

127.0.0.1:7000

Attributes
  • Install_directory

    %AppData%

  • install_file

    XClient.exe

Targets

    • Target

      XWorm V5.6/Xworm V5.6.exe

    • Size

      14.9MB

    • MD5

      56ccb739926a725e78a7acf9af52c4bb

    • SHA1

      5b01b90137871c3c8f0d04f510c4d56b23932cbc

    • SHA256

      90f58865f265722ab007abb25074b3fc4916e927402552c6be17ef9afac96405

    • SHA512

      2fee662bc4a1a36ce7328b23f991fa4a383b628839e403d6eb6a9533084b17699a6c939509867a86e803aafef2f9def98fa9305b576dad754aa7f599920c19a1

    • SSDEEP

      196608:P4/BAe1d4ihvy85JhhYc3BSL1kehn4inje:PuyIhhkRka4i

    • 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#.

    • Xworm family

    • Checks computer location settings

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

    • Drops startup file

    • Executes dropped EXE

    • Uses the VBS compiler for execution

    • Adds Run key to start application

    • Drops desktop.ini file(s)

    • Looks up external IP address via web service

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

    • Sets desktop wallpaper using registry

MITRE ATT&CK Enterprise v16

Tasks