General
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Target
http://dddd
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Sample
241217-xt41bsvmcy
Static task
static1
URLScan task
urlscan1
Behavioral task
behavioral1
Sample
http://dddd
Resource
win11-20241007-en
Malware Config
Extracted
crimsonrat
185.136.161.124
Targets
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Target
http://dddd
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CrimsonRAT main payload
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Crimsonrat family
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Modifies WinLogon for persistence
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Deletes shadow copies
Ransomware often targets backup files 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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Disables use of System Restore points
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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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Executes dropped EXE
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Impair Defenses: Safe Mode Boot
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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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MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Create or Modify System Process
2Windows Service
2Event 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
2Windows Service
2Event 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
4Disable or Modify System Firewall
1Disable or Modify Tools
2Safe Mode Boot
1Indicator Removal
2File Deletion
2Modify Registry
5Subvert Trust Controls
1SIP and Trust Provider Hijacking
1