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240829-3zs3xazamm 3General
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Target
https://valkyrieofficial.vercel.app/
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Sample
240917-s738qs1dqn
Static task
static1
URLScan task
urlscan1
Behavioral task
behavioral1
Sample
https://valkyrieofficial.vercel.app/
Resource
win10v2004-20240802-en
Malware Config
Extracted
crimsonrat
185.136.161.124
Targets
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Target
https://valkyrieofficial.vercel.app/
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Modifies WinLogon for persistence
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Grants admin privileges
Uses net.exe to modify the user's privileges.
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Remote Service Session Hijacking: RDP Hijacking
Adversaries may hijack a legitimate user's remote desktop session to move laterally within an environment.
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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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Modifies file permissions
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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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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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Password Policy Discovery
Attempt to access detailed information about the password policy used within an enterprise network.
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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
Execution
Command and Scripting Interpreter
2PowerShell
1Scheduled Task/Job
1Scheduled Task
1System Services
1Service Execution
1Persistence
Account Manipulation
1Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Create or Modify System Process
2Windows Service
2Scheduled Task/Job
1Scheduled Task
1Privilege Escalation
Account Manipulation
1Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Create or Modify System Process
2Windows Service
2Scheduled Task/Job
1Scheduled Task
1Defense Evasion
File and Directory Permissions Modification
1Hide Artifacts
2Hidden Files and Directories
2Impair Defenses
2Disable or Modify System Firewall
1Modify Registry
2