General
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Target
nayuka
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Size
11KB
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Sample
240430-rl5n1aae63
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MD5
590fc016ccd46b4eecadb75f90960fcd
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SHA1
b2904ccb6ab5cad0c7e71f649b931f38ea4797c5
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SHA256
fc7309880e86d6a173d6fc8f16ee23ab64470d87730b9db762c239a600cb5c8e
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SHA512
ad63af90a0eeee63c03675ed92714842cd087c422fdbe3d3d0e85d6562394599b665e7c413529c34a790d6b6c64a591f56af40e855fd65aa8dc31b52aaaa3a14
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SSDEEP
192:FKlKHKpsvzpRr8n/lu39WLyi0yThrHSCw:lVRI/luNiyi0OhrHSt
Static task
static1
Malware Config
Targets
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Target
nayuka
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Size
11KB
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MD5
590fc016ccd46b4eecadb75f90960fcd
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SHA1
b2904ccb6ab5cad0c7e71f649b931f38ea4797c5
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SHA256
fc7309880e86d6a173d6fc8f16ee23ab64470d87730b9db762c239a600cb5c8e
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SHA512
ad63af90a0eeee63c03675ed92714842cd087c422fdbe3d3d0e85d6562394599b665e7c413529c34a790d6b6c64a591f56af40e855fd65aa8dc31b52aaaa3a14
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SSDEEP
192:FKlKHKpsvzpRr8n/lu39WLyi0yThrHSCw:lVRI/luNiyi0OhrHSt
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Modifies WinLogon for persistence
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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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Loads dropped DLL
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Modifies file permissions
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Modifies system executable filetype association
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Obfuscated with Agile.Net obfuscator
Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.
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Registers COM server for autorun
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Adds Run key to start application
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Checks installed software on the system
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Legitimate hosting services abused for malware hosting/C2
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Checks system information in the registry
System information is often read in order to detect sandboxing environments.
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Drops file in System32 directory
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MITRE ATT&CK Matrix ATT&CK v13
Persistence
Boot or Logon Autostart Execution
3Registry Run Keys / Startup Folder
2Winlogon Helper DLL
1Event Triggered Execution
1Change Default File Association
1Privilege Escalation
Boot or Logon Autostart Execution
3Registry Run Keys / Startup Folder
2Winlogon Helper DLL
1Abuse Elevation Control Mechanism
1Bypass User Account Control
1Event Triggered Execution
1Change Default File Association
1