General
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Target
https://github.com/Da2dalus/The-MALWARE-Repo/tree/master/Worm
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Sample
241202-vnszrsyrar
Malware Config
Targets
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Target
https://github.com/Da2dalus/The-MALWARE-Repo/tree/master/Worm
Score10/10-
Modifies WinLogon for persistence
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Modifies Windows Defender Real-time Protection settings
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Adds policy Run key to start application
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Downloads MZ/PE file
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Manipulates Digital Signatures
Attackers can apply techniques such as changing the registry keys of authenticode & Cryptography to obtain their binary as valid.
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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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Executes dropped EXE
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Impair Defenses: Safe Mode Boot
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Modifies system executable filetype association
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Adds Run key to start application
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Enumerates connected drives
Attempts to read the root path of hard drives other than the default C: drive.
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Legitimate hosting services abused for malware hosting/C2
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Modifies WinLogon
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Drops autorun.inf file
Malware can abuse Windows Autorun to spread further via attached volumes.
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Drops file in System32 directory
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UPX packed file
Detects executables packed with UPX/modified UPX open source packer.
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MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
4Registry Run Keys / Startup Folder
2Winlogon Helper DLL
2Create or Modify System Process
1Windows Service
1Event Triggered Execution
1Change Default File Association
1Privilege Escalation
Boot or Logon Autostart Execution
4Registry Run Keys / Startup Folder
2Winlogon Helper DLL
2Create or Modify System Process
1Windows Service
1Event Triggered Execution
1Change Default File Association
1Defense Evasion
Impair Defenses
2Disable or Modify Tools
1Safe Mode Boot
1Modify Registry
8Subvert Trust Controls
1SIP and Trust Provider Hijacking
1