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General
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Target
863853779cb75e604f7f561e9d6aaeb2b6dab6209b1b45a4224baf6487a19d5e
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Size
1.4MB
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Sample
231014-amrebsfe4y
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MD5
0dad74135677936499c2ff723c0a9712
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SHA1
37897e154481cd6634527afd05731f6eccc9dd64
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SHA256
863853779cb75e604f7f561e9d6aaeb2b6dab6209b1b45a4224baf6487a19d5e
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SHA512
3a01cf85838f62ce1a73642079f747be292507d395cbf786e912da47986024a447479c2ebc9dc5d05884741f159b0582bf79d1e2eb16a6e9e51d54590b6b7c07
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SSDEEP
24576:U2G/nvxW3Ww0tRp8GiXTBhq7yRDvHcUcjUvy0lr3Tl6icOB/UWoT:UbA30H4zF0UMSAicOB/UWk
Static task
static1
Behavioral task
behavioral1
Sample
863853779cb75e604f7f561e9d6aaeb2b6dab6209b1b45a4224baf6487a19d5e.exe
Resource
win7-20230831-en
Behavioral task
behavioral2
Sample
863853779cb75e604f7f561e9d6aaeb2b6dab6209b1b45a4224baf6487a19d5e.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
863853779cb75e604f7f561e9d6aaeb2b6dab6209b1b45a4224baf6487a19d5e
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Size
1.4MB
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MD5
0dad74135677936499c2ff723c0a9712
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SHA1
37897e154481cd6634527afd05731f6eccc9dd64
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SHA256
863853779cb75e604f7f561e9d6aaeb2b6dab6209b1b45a4224baf6487a19d5e
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SHA512
3a01cf85838f62ce1a73642079f747be292507d395cbf786e912da47986024a447479c2ebc9dc5d05884741f159b0582bf79d1e2eb16a6e9e51d54590b6b7c07
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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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