General
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Target
retun.exe
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Size
200.0MB
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Sample
241029-1yx95a1aqg
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MD5
57bfb36b08a68eacecc64d77211b69b9
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SHA1
db6ef4199dc49868b3bf713915057e6721c8b7e5
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SHA256
2f8c8adc872d77bf4cbc46bd3f197fe9a3f71f511b3bb9e8af96f83fd7f509e6
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SHA512
bcb3119f72bda2b9a247bb695154055ad74708eb444d2bd25400847fe8112da9b8210d0df94f71b4daec18776ca1948d8702f17f766234830d0a4dcf811f2f7a
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SSDEEP
196608:1W++z9hoy6EnWLL0kiR+dy/YXsK0hn6ksV5:1WXRWyuPMR+dyLhO5
Behavioral task
behavioral1
Sample
retun.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
retun.exe
Resource
win10v2004-20241007-en
Malware Config
Targets
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Target
retun.exe
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Size
200.0MB
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MD5
57bfb36b08a68eacecc64d77211b69b9
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SHA1
db6ef4199dc49868b3bf713915057e6721c8b7e5
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SHA256
2f8c8adc872d77bf4cbc46bd3f197fe9a3f71f511b3bb9e8af96f83fd7f509e6
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SHA512
bcb3119f72bda2b9a247bb695154055ad74708eb444d2bd25400847fe8112da9b8210d0df94f71b4daec18776ca1948d8702f17f766234830d0a4dcf811f2f7a
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SSDEEP
196608:1W++z9hoy6EnWLL0kiR+dy/YXsK0hn6ksV5:1WXRWyuPMR+dyLhO5
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ACProtect 1.3x - 1.4x DLL software
Detects file using ACProtect software.
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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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Event Triggered Execution: Component Object Model Hijacking
Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.
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Executes dropped EXE
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Loads dropped DLL
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Modifies system executable filetype association
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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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Looks up external IP address via web service
Uses a legitimate IP lookup service to find the infected system's external IP.
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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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Enumerates processes with tasklist
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MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Event Triggered Execution
2Change Default File Association
1Component Object Model Hijacking
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Event Triggered Execution
2Change Default File Association
1Component Object Model Hijacking
1