General
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Target
9ded64087b76f48dfa80c95ceffbf11ec7e442bdaed4cebdef40a3ed2593f86b
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Size
1.4MB
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Sample
231014-dqsncafc23
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MD5
3f67be83722c1b395fc4bcec2dd81866
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SHA1
d67e4a209f94b6a051d96a12d609f32e453416c4
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SHA256
9ded64087b76f48dfa80c95ceffbf11ec7e442bdaed4cebdef40a3ed2593f86b
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SHA512
7517fe15e10e67a21b59869443b2154c39d334c63f3750ca20daa05d815d31c231143a16caf30923a205e858ffde195bea44164e4feb8aa01c5e837d8a8621a8
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SSDEEP
24576:U2G/nvxW3Ww0tRp8GiXTBhq7yRDvHcUcjUvy0lr3Tl6icOB/UWoT:UbA30H4zF0UMSAicOB/UWk
Static task
static1
Behavioral task
behavioral1
Sample
9ded64087b76f48dfa80c95ceffbf11ec7e442bdaed4cebdef40a3ed2593f86b.exe
Resource
win7-20230831-en
Behavioral task
behavioral2
Sample
9ded64087b76f48dfa80c95ceffbf11ec7e442bdaed4cebdef40a3ed2593f86b.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
9ded64087b76f48dfa80c95ceffbf11ec7e442bdaed4cebdef40a3ed2593f86b
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Size
1.4MB
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MD5
3f67be83722c1b395fc4bcec2dd81866
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SHA1
d67e4a209f94b6a051d96a12d609f32e453416c4
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SHA256
9ded64087b76f48dfa80c95ceffbf11ec7e442bdaed4cebdef40a3ed2593f86b
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SHA512
7517fe15e10e67a21b59869443b2154c39d334c63f3750ca20daa05d815d31c231143a16caf30923a205e858ffde195bea44164e4feb8aa01c5e837d8a8621a8
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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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Adds Run key to start application
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MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1