General
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Target
https://youareanidiot.cc/
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Sample
240525-yhvsysga3y
Score
10/10
Static task
static1
URLScan task
urlscan1
Behavioral task
behavioral1
Sample
https://youareanidiot.cc/
Resource
win10v2004-20240508-en
windows10-2004-x64
25 signatures
300 seconds
Malware Config
Extracted
Family
crimsonrat
C2
185.136.161.124
Targets
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Target
https://youareanidiot.cc/
Score10/10-
CrimsonRAT main payload
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Modifies WinLogon for persistence
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Downloads MZ/PE file
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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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Executes dropped EXE
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Adds Run key to start application
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Legitimate hosting services abused for malware hosting/C2
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Drops file in System32 directory
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MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Create or Modify System Process
1Windows Service
1Privilege Escalation
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Create or Modify System Process
1Windows Service
1