General

  • Target

    Registry.exe

  • Size

    77KB

  • Sample

    240722-xsj9jashka

  • MD5

    9d6650618c58c87940342a370a32e509

  • SHA1

    c579fae20e78573deeec2059c8119083ccdff7e2

  • SHA256

    b9254a6ecd096658f98b82ebb751201b4e447b5ce3b7302b48fb228c9b516c23

  • SHA512

    d37b31b2c9669980279e2ebf247811ddd2f43231766a735b8a904dd9de1034e10a5fb7ee23c80717f88d5e173b0ee84ee890b95f50e71590b57e03d8b81d6020

  • SSDEEP

    1536:BQa31Z6Y6BFzJufgQIUbmVCcGDl4gBQOV8EaKiRE:BQZhB5IYTUbm1Yl4SQOV8EqE

Malware Config

Extracted

Family

xworm

C2

147.185.221.20:49485

Attributes
  • Install_directory

    %Userprofile%

  • install_file

    System.exe

Targets

    • Target

      Registry.exe

    • Size

      77KB

    • MD5

      9d6650618c58c87940342a370a32e509

    • SHA1

      c579fae20e78573deeec2059c8119083ccdff7e2

    • SHA256

      b9254a6ecd096658f98b82ebb751201b4e447b5ce3b7302b48fb228c9b516c23

    • SHA512

      d37b31b2c9669980279e2ebf247811ddd2f43231766a735b8a904dd9de1034e10a5fb7ee23c80717f88d5e173b0ee84ee890b95f50e71590b57e03d8b81d6020

    • SSDEEP

      1536:BQa31Z6Y6BFzJufgQIUbmVCcGDl4gBQOV8EaKiRE:BQZhB5IYTUbm1Yl4SQOV8EqE

    • Detect Xworm Payload

    • StormKitty

      StormKitty is an open source info stealer written in C#.

    • StormKitty payload

    • XenArmor Suite

      XenArmor is as suite of password recovery tools for various application.

    • Xworm

      Xworm is a remote access trojan written in C#.

    • ACProtect 1.3x - 1.4x DLL software

      Detects file using ACProtect software.

    • Checks computer location settings

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

    • Drops startup file

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads WinSCP keys stored on the system

      Tries to access WinSCP stored sessions.

    • Reads data files stored by FTP clients

      Tries to access configuration files associated with programs like FileZilla.

    • Reads local data of messenger clients

      Infostealers often target stored data of messaging applications, which can include saved credentials and account information.

    • Reads user/profile data of local email clients

      Email clients store some user data on disk where infostealers will often target it.

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

    • Accesses Microsoft Outlook accounts

    • 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.

MITRE ATT&CK Enterprise v15

Tasks