General

  • Target

    Main.bat

  • Size

    458B

  • Sample

    250302-z7ecyavza1

  • MD5

    7fe7990fe96629419bef8f2b22415163

  • SHA1

    a147bd40dd7a0465bbce96282af8d3cb1a11b57d

  • SHA256

    ac74bb9370b5d6eff52190fe5767a21e6c3083e370b66506cc249a30d074f768

  • SHA512

    5d8d925e133e7cc33cdb154cc596c40be7e1d8e9438e640f6e3128ba50b1ad1af5ebde614edfa54d45de436168949e08b1deec0b983b7314dc407f595b709754

Malware Config

Extracted

Family

xworm

Version

5.0

Mutex

sSk9v0A6er9oWjcu

Attributes
  • Install_directory

    %AppData%

  • install_file

    svchost.exe

  • pastebin_url

    https://pastebin.com/raw/6EU9ps8S

aes.plain

Targets

    • Target

      Main.bat

    • Size

      458B

    • MD5

      7fe7990fe96629419bef8f2b22415163

    • SHA1

      a147bd40dd7a0465bbce96282af8d3cb1a11b57d

    • SHA256

      ac74bb9370b5d6eff52190fe5767a21e6c3083e370b66506cc249a30d074f768

    • SHA512

      5d8d925e133e7cc33cdb154cc596c40be7e1d8e9438e640f6e3128ba50b1ad1af5ebde614edfa54d45de436168949e08b1deec0b983b7314dc407f595b709754

    • 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.

    • Command and Scripting Interpreter: PowerShell

      Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

    • Downloads MZ/PE file

    • Checks computer location settings

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

    • Drops startup file

    • Executes dropped EXE

    • Adds Run key to start application

    • Legitimate hosting services abused for malware hosting/C2

MITRE ATT&CK Enterprise v15

Tasks