General

  • Target
    https://mega.nz/file/mRt30TjA#qGIHCIcsWHY9x2Ii85OBhfpbYeskZ6DmEpugI8J3jNM
  • Sample260328-pc8m7adv2k

Malware Config

Extracted

Family
  • xworm

Mutex
  • NlyKGYhc0V2YGDHx

Attributes
  • install_file

    USB.exe

  • localhost

    127.0.0.1

aes.plain

Targets

    • Target
      https://mega.nz/file/mRt30TjA#qGIHCIcsWHY9x2Ii85OBhfpbYeskZ6DmEpugI8J3jNM
    • Detect Xworm Payload

    • XenArmor Suite

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

    • Xenarmor family

    • Xworm

      Xworm is a remote access trojan written in C#.

    • Xworm family

    • Download via BitsAdmin

    • Downloads MZ/PE file

    • 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.

    • Event Triggered Execution: Component Object Model Hijacking

      Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.

    • Executes dropped EXE

    • Loads dropped DLL

    • Modifies system executable filetype association

    • 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.

    • Uses the VBS compiler for execution

    • Accesses Microsoft Outlook accounts

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • UPX packed file

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

MITRE ATT&CK Enterprise v16

Tasks