General
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Target
Uni.bat
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Size
301KB
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Sample
240510-vhw48sba59
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MD5
1f089d9bb03dad6a421dc626a1a1388d
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SHA1
44b708c87c743b09c3380427aa0c64e196438d76
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SHA256
d1c5a6ee28141a729b788a725748d718c2cf26d6cf66c19a524072eeb03cf334
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SHA512
fd6c6e5588e588e482a15bfe7a5f4608fe85452916b812319336bf422b07a3f76ef7415b64d99bc7f624e57aa362c388576db529e064a3dfbbc4ec01aebec324
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SSDEEP
6144:UDAQODtb/MLJcwze2hz1uQ1VEqPfvBaidW+wYHlad/vb7V1:UDROhbMNcE7hv1VLZtMTK+/jJ1
Static task
static1
Behavioral task
behavioral1
Sample
Uni.bat
Resource
win7-20240221-en
Malware Config
Extracted
quasar
3.1.5
SLAVE
even-lemon.gl.at.ply.gg:33587
$Sxr-dOMA5C0pQTTpKjVsCp
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encryption_key
UBXs44u6E81wxBGZxQHk
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install_name
$sxr-powershell.exe
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log_directory
$SXR-KEYLOGS
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reconnect_delay
3000
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startup_key
$sxr-powershell
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subdirectory
$sxr-seroxen2
Targets
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Target
Uni.bat
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Size
301KB
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MD5
1f089d9bb03dad6a421dc626a1a1388d
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SHA1
44b708c87c743b09c3380427aa0c64e196438d76
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SHA256
d1c5a6ee28141a729b788a725748d718c2cf26d6cf66c19a524072eeb03cf334
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SHA512
fd6c6e5588e588e482a15bfe7a5f4608fe85452916b812319336bf422b07a3f76ef7415b64d99bc7f624e57aa362c388576db529e064a3dfbbc4ec01aebec324
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SSDEEP
6144:UDAQODtb/MLJcwze2hz1uQ1VEqPfvBaidW+wYHlad/vb7V1:UDROhbMNcE7hv1VLZtMTK+/jJ1
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Quasar payload
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Suspicious use of NtCreateUserProcessOtherParentProcess
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Downloads MZ/PE file
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Checks BIOS information in registry
BIOS information is often read in order to detect sandboxing environments.
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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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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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Drops file in System32 directory
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Suspicious use of SetThreadContext
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