General
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Target
http://fast.com/
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Sample
230921-v5kpqahe8t
Score
10/10
Malware Config
Targets
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Target
http://fast.com/
Score10/10-
Modifies WinLogon for persistence
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UAC bypass
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Disables RegEdit via registry modification
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Disables Task Manager via registry modification
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Downloads MZ/PE file
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Possible privilege escalation attempt
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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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Modifies file permissions
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Checks whether UAC is enabled
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Sets desktop wallpaper using registry
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MITRE ATT&CK Enterprise v15
Privilege Escalation
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Boot or Logon Autostart Execution
1Winlogon Helper DLL
1Defense Evasion
Abuse Elevation Control Mechanism
1Bypass User Account Control
1File and Directory Permissions Modification
1Impair Defenses
1Disable or Modify Tools
1Modify Registry
4