General
- Target https://bazaar.abuse.ch/browse/tag/ransomware/
- Sample250522-saffeahp6v
Malware Config
Targets
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- Target https://bazaar.abuse.ch/browse/tag/ransomware/
Score10/10-
Modifies WinLogon for persistence
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UAC bypass
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Deletes shadow copies
Ransomware often targets backup files to inhibit system recovery.
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Blocklisted process makes network request
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Blocks application from running via registry modification
Adds application to list of disallowed applications.
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Deletes backup catalog
Uses wbadmin.exe to inhibit system recovery.
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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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Event Triggered Execution: Image File Execution Options Injection
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Modifies Windows Firewall
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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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Adds Run key to start application
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Checks whether UAC is enabled
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Command and Scripting Interpreter: PowerShell
Using powershell.exe command.
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Indicator Removal: Clear Persistence
remove IFEO.
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Drops file in System32 directory
MITRE ATT&CK Enterprise v16
Execution
Command and Scripting Interpreter
2PowerShell
1Windows Management Instrumentation
1Persistence
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Create or Modify System Process
1Windows Service
1Event Triggered Execution
2Image File Execution Options Injection
1Netsh Helper DLL
1Privilege Escalation
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Create or Modify System Process
1Windows Service
1Event Triggered Execution
2Image File Execution Options Injection
1Netsh Helper DLL
1Defense Evasion
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Direct Volume Access
1Impair Defenses
2Disable or Modify System Firewall
1Disable or Modify Tools
1Indicator Removal
4Clear Persistence
1File Deletion
3Modify Registry
4