General
- Target 541780999940b2e3d3407521c2e556d3c87c96f45a92403b7b4d57503d6d18d3
- Size 5.6MB
- Sample260815-l339lsvsbs
- SHA256 541780999940b2e3d3407521c2e556d3c87c96f45a92403b7b4d57503d6d18d3
Malware Config
Targets
-
- Target appinst_up012.exe
- Size 37.3MB
- SHA256 aaecc91a4f4fcccc97d7096f832d953a61efbf6fd2e60576cad9fb7708fded83
Score10/10-
UAC bypass
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Windows security bypass
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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.
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Drops file in Drivers directory
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Modifies RDP port number used by Windows
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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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Loads dropped DLL
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Modifies file permissions
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Adds Run key to start application
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Indicator Removal: Clear Persistence
Clear artifacts associated with previously established persistence like scheduletasks on a host.
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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.
MITRE ATT&CK Enterprise v16
Execution
Command and Scripting Interpreter
2PowerShell
1Windows Command Shell
1Scheduled Task/Job
1Scheduled Task
1Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Event Triggered Execution
1Screensaver
1Scheduled Task/Job
1Scheduled Task
1Privilege Escalation
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Event Triggered Execution
1Screensaver
1Scheduled Task/Job
1Scheduled Task
1Defense Evasion
Abuse Elevation Control Mechanism
1Bypass User Account Control
1File and Directory Permissions Modification
1Impair Defenses
2Disable or Modify Tools
2Indicator Removal
1Clear Persistence
1Modify Registry
5Subvert Trust Controls
2Install Root Certificate
2