General

  • Target
    2026-10-22_5f527ec857da66cc62339f6ecfb0ba5b_cobalt-strike_elex_glassworm_icedid_vidar
  • Size 389KB
  • Sample261024-nn71cstycz
  • SHA256 dbaac58137193f9961d52ecef1a3f2a57c780e7dcf8f5d81fe9d59c75f0ec61b
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • xworm

Version
  • 5.0

Attributes
  • install_file

    Mason.exe

Targets

    • Target
      2026-10-22_5f527ec857da66cc62339f6ecfb0ba5b_cobalt-strike_elex_glassworm_icedid_vidar
    • Size 389KB
    • SHA256 dbaac58137193f9961d52ecef1a3f2a57c780e7dcf8f5d81fe9d59c75f0ec61b
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Detect Xworm Payload

    • Family: Xworm

      Xworm is a remote access trojan written in C#.

    • Command and Scripting Interpreter: PowerShell

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

    • Sets service image path in registry

      This determines the executable launched when a service starts. It can be used to establish persistence.

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • Checks computer location settings

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

    • Creates a file in the Startup directory

      A file was written to a Windows startup folder. Files in these directories are executed automatically when a user logs on or an application initializes.

    • Executes dropped EXE

    • Indicator Removal: Clear Windows Event Logs

      Clear Windows Event Logs to hide the activity of an intrusion.

    • Adds Run key to start application

    • Contacts third-party web service commonly abused for C2

      Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Writes to the Master Boot Record (MBR)

      Bootkits write to the MBR to gain persistence at a level below the operating system.

    • Drops file in System32 directory

MITRE ATT&CK Enterprise v16

Tasks