General
- Target windowssecurity.exe
- Size 116.9MB
- Sample261030-n3emcsby3w
- SHA256 c1bedfabfb35a690a203161ad0587c964283b97d7ccc50448bbd454942fa512f
- MD5 da1c05ab91a009de7a96bed71e922875
- SHA1 475011538aaf6e6c5eb0dab14924cbc19aa24ee1
- SHA512 fe74a404672f93cad042b163ae125b7d9ea303cc87a1b1eb587eb5993eecfe0a769bf92c99cbb1ecf006fc2e2579513a11884861a176e0f4657a808a19be352c
- SSDEEP 3145728:cGk7TWcDDZtrio2ij0/kd0xk7fjyEu5R3GgfPtwEsM5/X5D:2THD7iuPRLsD3GICKVt
- TLSH T1904833A4AF8A37D1F143C534E178EB346DA01158B7D38F8B3B8053A27563DE6A172963
- MD5 SHA1 SHA512 SSDEEP TLSH
Behavioral task
behavioral1
Sample
windowssecurity.exe
Resource
win11ltsc2024-20260911-es
Malware Config
Targets
-
- Target windowssecurity.exe
- Size 116.9MB
- SHA256 c1bedfabfb35a690a203161ad0587c964283b97d7ccc50448bbd454942fa512f
- MD5 da1c05ab91a009de7a96bed71e922875
- SHA1 475011538aaf6e6c5eb0dab14924cbc19aa24ee1
- SHA512 fe74a404672f93cad042b163ae125b7d9ea303cc87a1b1eb587eb5993eecfe0a769bf92c99cbb1ecf006fc2e2579513a11884861a176e0f4657a808a19be352c
- SSDEEP 3145728:cGk7TWcDDZtrio2ij0/kd0xk7fjyEu5R3GgfPtwEsM5/X5D:2THD7iuPRLsD3GICKVt
- TLSH T1904833A4AF8A37D1F143C534E178EB346DA01158B7D38F8B3B8053A27563DE6A172963
- MD5 SHA1 SHA512 SSDEEP TLSH
-
Modifies WinLogon for persistence
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Modifies Windows Defender Real-time Protection settings
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Modifies security service
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Deletes shadow copies
Ransomware often targets backup files to inhibit system recovery.
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Enumerates VirtualBox registry keys
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Looks for VirtualBox Guest Additions in registry
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Modifies boot configuration data using bcdedit
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Command and Scripting Interpreter: PowerShell
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
-
Disables one or more Microsoft Defender components
Uses the Powershell Set-MpPreference cmdlet to disable one or more Microsoft Defender components.
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Drops file in Drivers directory
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Looks for VMWare Tools registry key
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Looks for VMWare services registry key.
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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.
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Executes dropped EXE
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Loads dropped DLL
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Modifies file permissions
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Stops running service(s)
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Adds Run key to start application
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Contacts third-party web service commonly abused for C2
Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.
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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.
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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.
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Drops file in System32 directory
MITRE ATT&CK Enterprise v16
Execution
Command and Scripting Interpreter
3PowerShell
1Windows Command Shell
1Scheduled Task/Job
1Scheduled Task
1System Services
1Service Execution
1Windows Management Instrumentation
2Persistence
Boot or Logon Autostart Execution
3Registry Run Keys / Startup Folder
2Winlogon Helper DLL
1Create or Modify System Process
4Windows Service
4Power Settings
1Scheduled Task/Job
1Scheduled Task
1Privilege Escalation
Boot or Logon Autostart Execution
3Registry Run Keys / Startup Folder
2Winlogon Helper DLL
1Create or Modify System Process
4Windows Service
4Scheduled Task/Job
1Scheduled Task
1Defense Evasion
Direct Volume Access
1File and Directory Permissions Modification
1Hide Artifacts
2Hidden Files and Directories
1Ignore Process Interrupts
1Impair Defenses
5Disable or Modify Tools
3Indicator Removal
3File Deletion
3Modify Registry
7Virtualization/Sandbox Evasion
5System Checks
1