General
- Target 2d1f69bd3c3ce7838a84b5870551b011dc932a54ebc951e85ae65702a01e3849
- Size 5.4MB
- Sample260805-b6fmlshm6s
- SHA256 2d1f69bd3c3ce7838a84b5870551b011dc932a54ebc951e85ae65702a01e3849
Malware Config
Targets
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- Target inst_smt008.exe
- Size 55.2MB
- SHA256 bc0e4b5b863c21396f07c76a0b2b5287db975e3d185d1e770ed97a246d7ee1aa
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
4