General
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Target
faeb068c20cbe9e1778e2d6edebad8d5a97cf081b52f1e625066fdab6eb8c154
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Size
1.4MB
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Sample
231012-a4jqtadh81
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MD5
5028526669cbe4d826de03f118a3ac88
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SHA1
a7e818e543af24fdbe7c4ce0b864c91e7a456bb1
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SHA256
faeb068c20cbe9e1778e2d6edebad8d5a97cf081b52f1e625066fdab6eb8c154
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SHA512
c29fd9e374be03aedfdd8c1ebe00748b50d587114e0c14a82fe83e574e640afe3b92d9f13aa9508a33947b59afe3642102aa787a0f8dc6d0272ec5927b360c92
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SSDEEP
24576:U2G/nvxW3Ww0tRp8GiXTBhq7yRDvHcUcjUvy0lr3Tl6icOB/UWoT:UbA30H4zF0UMSAicOB/UWk
Static task
static1
Behavioral task
behavioral1
Sample
faeb068c20cbe9e1778e2d6edebad8d5a97cf081b52f1e625066fdab6eb8c154.exe
Resource
win7-20230831-en
Behavioral task
behavioral2
Sample
faeb068c20cbe9e1778e2d6edebad8d5a97cf081b52f1e625066fdab6eb8c154.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
faeb068c20cbe9e1778e2d6edebad8d5a97cf081b52f1e625066fdab6eb8c154
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Size
1.4MB
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MD5
5028526669cbe4d826de03f118a3ac88
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SHA1
a7e818e543af24fdbe7c4ce0b864c91e7a456bb1
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SHA256
faeb068c20cbe9e1778e2d6edebad8d5a97cf081b52f1e625066fdab6eb8c154
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SHA512
c29fd9e374be03aedfdd8c1ebe00748b50d587114e0c14a82fe83e574e640afe3b92d9f13aa9508a33947b59afe3642102aa787a0f8dc6d0272ec5927b360c92
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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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