General
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Target
CSP_200w_setup.exe
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Size
398.8MB
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Sample
250328-cg3araspy8
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MD5
7304f926256b156cbf9db5571d6388b4
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SHA1
00a32364d77934faeb3c79b153eba1adf2977a7c
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SHA256
d24b9d3579ee45a6f8d8762d8aa4c223a8b3935404658bb5009b008187fca45f
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SHA512
830f685394235ce2b66ebbba9bcb0466afbc8a685722cbd6d978407ce6475f0e30d81aa75de5be1466eb1d27702c41b099283a167497a53898dd1599c53e5d74
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SSDEEP
6291456:TJTVJsPA+MqNF524Jg0KOWDlBlKQLjfo+wO4Cm7iW9H2nXy2txJ0gX+xp2d9O9uZ:1+MiJYOiBlTvo+K9HUXyKd2P84O
Static task
static1
Behavioral task
behavioral1
Sample
CSP_200w_setup.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
CSP_200w_setup.exe
Resource
win10v2004-20250314-en
Malware Config
Extracted
quasar
1.3.0.0
Clip Studio Paint EX v!@!!!
metavm.bumbleshrimp.com:1981
GJrr6Uap8uTnzgSEPB
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encryption_key
KcRMp6Py3ZKc2huydbiR
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install_name
Client.exe
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log_directory
HDj
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reconnect_delay
3000
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startup_key
Quasar Client Startup
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subdirectory
SubDir
Targets
-
-
Target
CSP_200w_setup.exe
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Size
398.8MB
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MD5
7304f926256b156cbf9db5571d6388b4
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SHA1
00a32364d77934faeb3c79b153eba1adf2977a7c
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SHA256
d24b9d3579ee45a6f8d8762d8aa4c223a8b3935404658bb5009b008187fca45f
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SHA512
830f685394235ce2b66ebbba9bcb0466afbc8a685722cbd6d978407ce6475f0e30d81aa75de5be1466eb1d27702c41b099283a167497a53898dd1599c53e5d74
-
SSDEEP
6291456:TJTVJsPA+MqNF524Jg0KOWDlBlKQLjfo+wO4Cm7iW9H2nXy2txJ0gX+xp2d9O9uZ:1+MiJYOiBlTvo+K9HUXyKd2P84O
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Quasar family
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Quasar payload
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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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Executes dropped EXE
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Loads dropped DLL
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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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Suspicious use of SetThreadContext
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MITRE ATT&CK Enterprise v15
Execution
Command and Scripting Interpreter
1PowerShell
1Scheduled Task/Job
1Scheduled Task
1