General

  • Target

    conn.exe

  • Size

    28.2MB

  • Sample

    250302-nzv5yatqx7

  • MD5

    10a8827711072bcfb24f0677231ed67b

  • SHA1

    4c701929c7a09bafc66911e63064bb2dc96b840d

  • SHA256

    ab02f620cc1e96c981c0344a0cb2ac6b0455547431c7fcd2dc9a256531ef2576

  • SHA512

    bc4277b9b87d044b12ffd589876c9ec3d1c0f9e5a16286fa720882173810f12fb4b5361a33c3cca6f0ecc6775c84214499686adf8721a8799daab190036b4f18

  • SSDEEP

    786432:Etu0coshxWHVn6s6b64G71jaoCo1Ha2XykTZrfDn2L91:6u0jyC6Fb6V71JCo1RDfDu

Malware Config

Extracted

Family

xworm

Version

5.0

C2

thetest.selfhost.co:1339

Mutex

hyd6qZsPPsPPgljc

Attributes
  • Install_directory

    %ProgramData%

  • install_file

    DirectOutputService.exe

aes.plain

Targets

    • Target

      conn.exe

    • Size

      28.2MB

    • MD5

      10a8827711072bcfb24f0677231ed67b

    • SHA1

      4c701929c7a09bafc66911e63064bb2dc96b840d

    • SHA256

      ab02f620cc1e96c981c0344a0cb2ac6b0455547431c7fcd2dc9a256531ef2576

    • SHA512

      bc4277b9b87d044b12ffd589876c9ec3d1c0f9e5a16286fa720882173810f12fb4b5361a33c3cca6f0ecc6775c84214499686adf8721a8799daab190036b4f18

    • SSDEEP

      786432:Etu0coshxWHVn6s6b64G71jaoCo1Ha2XykTZrfDn2L91:6u0jyC6Fb6V71JCo1RDfDu

    • 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

    • Blocklisted process makes network request

    • Command and Scripting Interpreter: PowerShell

      Powershell Invoke Web Request.

    • Drops startup file

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

    • Sets desktop wallpaper using registry

MITRE ATT&CK Enterprise v15

Tasks