General
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Target
pack.com
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Size
500.1MB
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Sample
230602-zdagwsed34
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MD5
e893801ca83e49f84dca107d6e1162b4
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SHA1
3122871288ac44693324194b793fc40347360bd4
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SHA256
ca86561805b0e4184479159a552c05becbbad6f209b03df0819cbb0a47d75fe7
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SHA512
94f5ca28aedbc2e32383e10ed354a7e8d135f234dae6f1b6f2e1e6f703e4323ae1f3d0f5cb23d57aa85ebe319e59709429837666a7e96234bcabe6b4b851a719
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SSDEEP
384:ogPThofsksm2/HMLntRBSlwy/VpREaEhAqDjbY2QuzDf+m9xgJJt/V4568OwXpkD:tIXxOn6ZDn7d21448OKpkBC5ZF/i1
Static task
static1
Behavioral task
behavioral1
Sample
pack.exe
Resource
win7-20230220-en
Behavioral task
behavioral2
Sample
pack.exe
Resource
win10v2004-20230220-en
Malware Config
Extracted
purecrypter
http://95.214.24.37/SystemEnv/uploads/programme_Hdayjetq.jpg
Extracted
quasar
1.4.0.0
Office04
45.83.122.111:5557
p337SdjNpEb5aKmAPc
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encryption_key
JzZjeR51DHpipyQ3lm91
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install_name
Client.exe
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log_directory
Logs
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reconnect_delay
3000
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startup_key
Quasar Client Startup
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subdirectory
SubDir
Extracted
quasar
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reconnect_delay
3000
Targets
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Target
pack.com
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Size
500.1MB
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MD5
e893801ca83e49f84dca107d6e1162b4
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SHA1
3122871288ac44693324194b793fc40347360bd4
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SHA256
ca86561805b0e4184479159a552c05becbbad6f209b03df0819cbb0a47d75fe7
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SHA512
94f5ca28aedbc2e32383e10ed354a7e8d135f234dae6f1b6f2e1e6f703e4323ae1f3d0f5cb23d57aa85ebe319e59709429837666a7e96234bcabe6b4b851a719
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SSDEEP
384:ogPThofsksm2/HMLntRBSlwy/VpREaEhAqDjbY2QuzDf+m9xgJJt/V4568OwXpkD:tIXxOn6ZDn7d21448OKpkBC5ZF/i1
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PureCrypter
PureCrypter is a .NET malware loader first seen in early 2021.
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Quasar payload
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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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Adds Run key to start application
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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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