General
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Target
lol.exe
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Size
20.3MB
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Sample
240523-2dm44abc83
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MD5
1da87056da8166d6ed5e04d81aa5522c
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SHA1
f3f81e8e0b116627682ae03ed6f004b2ac46f464
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SHA256
7bfea7f092cf7638322f351474791f12b66ec22c66f0872f3488256839bc4c45
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SHA512
cd9e5b62cc6918cc496dec0ab610a2d00c88d7e8285521730faecf881892070886c91ef9e0930f579e26d1cae20d09e0b233b365cdeabab4c29957c28e0e1b0f
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SSDEEP
393216:PzuEpuRT4xFrlZfl23p33X55EWheYkv8LlCTe2x:v4RerlLa3nTEwrkACTec
Malware Config
Extracted
quasar
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reconnect_delay
3000
Extracted
quasar
1.4.1
romka
jozzu420-51305.portmap.host:51305
0445c342-b551-411c-9b80-cd437437f491
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encryption_key
E1BF1D99459F04CAF668F054744BC2C514B0A3D6
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install_name
Romilyaa.exe
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log_directory
Logs
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reconnect_delay
3000
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startup_key
Windows 10 Boot
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subdirectory
SubDir
Targets
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Target
lol.exe
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Size
20.3MB
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MD5
1da87056da8166d6ed5e04d81aa5522c
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SHA1
f3f81e8e0b116627682ae03ed6f004b2ac46f464
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SHA256
7bfea7f092cf7638322f351474791f12b66ec22c66f0872f3488256839bc4c45
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SHA512
cd9e5b62cc6918cc496dec0ab610a2d00c88d7e8285521730faecf881892070886c91ef9e0930f579e26d1cae20d09e0b233b365cdeabab4c29957c28e0e1b0f
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SSDEEP
393216:PzuEpuRT4xFrlZfl23p33X55EWheYkv8LlCTe2x:v4RerlLa3nTEwrkACTec
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Detect Umbral payload
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Modifies WinLogon for persistence
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Modifies visibility of file extensions in Explorer
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Modifies visiblity of hidden/system files in Explorer
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Quasar payload
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Disables RegEdit via registry modification
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.NET Reactor proctector
Detects an executable protected by an unregistered version of Eziriz's .NET Reactor.
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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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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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Modifies WinLogon
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AutoIT Executable
AutoIT scripts compiled to PE executables.
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Drops file in System32 directory
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MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
3Registry Run Keys / Startup Folder
1Winlogon Helper DLL
2Scheduled Task/Job
1Privilege Escalation
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Boot or Logon Autostart Execution
3Registry Run Keys / Startup Folder
1Winlogon Helper DLL
2Scheduled Task/Job
1Defense Evasion
Abuse Elevation Control Mechanism
1Bypass User Account Control
1File and Directory Permissions Modification
1Hide Artifacts
2Hidden Files and Directories
2Impair Defenses
3Disable or Modify Tools
3Modify Registry
10