General
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Target
SiHost.exe
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Size
348KB
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Sample
240614-wsajna1dqh
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MD5
c6250d3d376c1956627bf8f4f827bbd6
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SHA1
7444e248bc182e849556cfa3c2519e30ae8ee82f
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SHA256
9b87f3813641da8be21f130cdd5cb52c2f8ae5494a408d2303f9770b7f3039d8
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SHA512
8de084cac0e01c8d5b1c8e5443ef97a1412bb4b7ed41d1e4c5e1b5e40750b0bb6d06c9a3b16e325ca8bbe260397ee130560d0d699ff302f2ef5f8196231fa44e
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SSDEEP
6144:ON13U1vhtvTA1B3jZwIbmXtNx47cSm3Bs3:iUJtLAX3jMXtNyw3Bs3
Behavioral task
behavioral1
Sample
SiHost.exe
Resource
win7-20240220-en
Malware Config
Extracted
quasar
1.3.0.0
Farrag
17.ip.gl.ply.gg:33386
QSR_MUTEX_4Q6TQpIEBpG4GGALTz
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encryption_key
qZ74sJrr75km6SoIX0sF
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install_name
SiHost.exe
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log_directory
SiHost
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reconnect_delay
3000
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startup_key
SiHost
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subdirectory
SiHost
Targets
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Target
SiHost.exe
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Size
348KB
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MD5
c6250d3d376c1956627bf8f4f827bbd6
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SHA1
7444e248bc182e849556cfa3c2519e30ae8ee82f
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SHA256
9b87f3813641da8be21f130cdd5cb52c2f8ae5494a408d2303f9770b7f3039d8
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SHA512
8de084cac0e01c8d5b1c8e5443ef97a1412bb4b7ed41d1e4c5e1b5e40750b0bb6d06c9a3b16e325ca8bbe260397ee130560d0d699ff302f2ef5f8196231fa44e
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SSDEEP
6144:ON13U1vhtvTA1B3jZwIbmXtNx47cSm3Bs3:iUJtLAX3jMXtNyw3Bs3
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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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Executes dropped EXE
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Loads dropped DLL
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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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Drops file in System32 directory
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