General
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Target
https://pcapi-server.com/download/Zhuriken.exe
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Sample
240703-qyknxsyhrb
Score
10/10
Malware Config
Extracted
Family
quasar
Version
1.4.1
Botnet
Office04
C2
91.92.253.215:4782
Mutex
4304b988-116c-4522-ab83-7f9ad875f60f
Attributes
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encryption_key
A6B8B9B9B02FC86103A59CE003D7B3B45DAF8550
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install_name
Client.exe
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log_directory
ZhurikenLogs
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reconnect_delay
3000
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startup_key
Zhuriken Client Startup
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subdirectory
SubDir
Targets
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Target
https://pcapi-server.com/download/Zhuriken.exe
Score10/10-
Quasar RAT
Quasar is an open source Remote Access Tool.
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Quasar payload
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UAC bypass
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Command and Scripting Interpreter: PowerShell
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
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Downloads MZ/PE file
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Executes dropped EXE
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Checks whether UAC is enabled
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Suspicious use of SetThreadContext
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