Resubmissions

30/10/2026, 18:13

261030-wttc6afs7m10

30/10/2026, 11:55

261030-n3emcsby3w10

General

  • Target
    windowssecurity.exe
  • Size 116.9MB
  • Sample261030-n3emcsby3w
  • SHA256 c1bedfabfb35a690a203161ad0587c964283b97d7ccc50448bbd454942fa512f
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Targets

    • Target
      windowssecurity.exe
    • Size 116.9MB
    • SHA256 c1bedfabfb35a690a203161ad0587c964283b97d7ccc50448bbd454942fa512f
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Modifies WinLogon for persistence

    • Modifies Windows Defender DisableAntiSpyware settings

    • Modifies Windows Defender Real-time Protection settings

    • Modifies security service

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

    • Enumerates VirtualBox registry keys

    • Looks for VirtualBox Guest Additions in registry

    • Modifies boot configuration data using bcdedit

    • Command and Scripting Interpreter: PowerShell

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

    • Deletes System State backups

      Uses wbadmin.exe to inhibit system recovery.

    • Disables one or more Microsoft Defender components

      Uses the Powershell Set-MpPreference cmdlet to disable one or more Microsoft Defender components.

    • Drops file in Drivers directory

    • Looks for VMWare Tools registry key

    • Looks for VMWare services registry key.

    • 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

    • Loads dropped DLL

    • Modifies file permissions

    • Stops running service(s)

    • 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.

    • Modifies Security services

      Modifies the startup behavior of a security service.

    • Power Settings

      powercfg controls all configurable power system settings on a Windows system and can be abused to prevent an infected host from locking or shutting down.

    • Uses WMI to collect hardware manufacturer information

      Uses WMI to read the system manufacturer, model, baseboard or display adapter, which is often used to detect virtual machines and evade sandboxes.

    • Drops file in System32 directory

MITRE ATT&CK Enterprise v16

Tasks