General
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Target
9740b8125ee7514574c5abf44f81b0093fb835c96be4ee008664ffda7ac4c0d2
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Size
1.4MB
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Sample
231012-jbqs4agb68
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MD5
2ca1d8c2ed7a7a6f8580a6f9797c473e
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SHA1
02d8f11b4b3076ce6fff19a75a9f6e565135b490
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SHA256
9740b8125ee7514574c5abf44f81b0093fb835c96be4ee008664ffda7ac4c0d2
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SHA512
d43df5e64108c77f947884615d5fefedf9b6a4a8cd66acc0449a1f24d7e3eefe3c67afcbc1e25969e5e37ff079d9b8272bfc3bddc2a9b3ca3ae64055991c3f99
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SSDEEP
24576:U2G/nvxW3Ww0tRp8GiXTBhq7yRDvHcUcjUvy0lr3Tl6icOB/UWoT:UbA30H4zF0UMSAicOB/UWk
Static task
static1
Behavioral task
behavioral1
Sample
9740b8125ee7514574c5abf44f81b0093fb835c96be4ee008664ffda7ac4c0d2.exe
Resource
win7-20230831-en
Behavioral task
behavioral2
Sample
9740b8125ee7514574c5abf44f81b0093fb835c96be4ee008664ffda7ac4c0d2.exe
Resource
win10v2004-20230915-en
Malware Config
Extracted
quasar
1.3.0.0
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94.131.105.161:12344
QSR_MUTEX_UEgITWnMKnRP3EZFzK
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encryption_key
5Q0JQBQQfAUHRJTcAIOF
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install_name
lient.exe
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log_directory
Lugs
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reconnect_delay
3000
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startup_key
itartup
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subdirectory
SubDir
Targets
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Target
9740b8125ee7514574c5abf44f81b0093fb835c96be4ee008664ffda7ac4c0d2
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Size
1.4MB
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MD5
2ca1d8c2ed7a7a6f8580a6f9797c473e
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SHA1
02d8f11b4b3076ce6fff19a75a9f6e565135b490
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SHA256
9740b8125ee7514574c5abf44f81b0093fb835c96be4ee008664ffda7ac4c0d2
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SHA512
d43df5e64108c77f947884615d5fefedf9b6a4a8cd66acc0449a1f24d7e3eefe3c67afcbc1e25969e5e37ff079d9b8272bfc3bddc2a9b3ca3ae64055991c3f99
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SSDEEP
24576:U2G/nvxW3Ww0tRp8GiXTBhq7yRDvHcUcjUvy0lr3Tl6icOB/UWoT:UbA30H4zF0UMSAicOB/UWk
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Quasar payload
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Modifies Windows Firewall
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ACProtect 1.3x - 1.4x DLL software
Detects file using ACProtect software.
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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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Unexpected DNS network traffic destination
Network traffic to other servers than the configured DNS servers was detected on the DNS port.
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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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