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General
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Target
105e455731e490cb5fd0c456f265dc986842d3d69906ad6b94235d19255931af
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Size
1.4MB
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Sample
231012-cmfc6scb52
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MD5
19f46c41f3f272a9d8119a738c21d8c6
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SHA1
7cafe3ea1336554c7fd31cb64d0d278bc8428b8b
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SHA256
105e455731e490cb5fd0c456f265dc986842d3d69906ad6b94235d19255931af
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SHA512
7cd233e53213d0bb530b6e73ae023d751ee3cb957ac58764f93b31817bd06ff80a42ae86f96fbb5c11c71ee330f041c56325fe2121198b408fd3ddd42c09515a
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SSDEEP
24576:U2G/nvxW3Ww0tRp8GiXTBhq7yRDvHcUcjUvy0lr3Tl6icOB/UWoT:UbA30H4zF0UMSAicOB/UWk
Static task
static1
Behavioral task
behavioral1
Sample
105e455731e490cb5fd0c456f265dc986842d3d69906ad6b94235d19255931af.exe
Resource
win7-20230831-en
Behavioral task
behavioral2
Sample
105e455731e490cb5fd0c456f265dc986842d3d69906ad6b94235d19255931af.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
105e455731e490cb5fd0c456f265dc986842d3d69906ad6b94235d19255931af
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Size
1.4MB
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MD5
19f46c41f3f272a9d8119a738c21d8c6
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SHA1
7cafe3ea1336554c7fd31cb64d0d278bc8428b8b
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SHA256
105e455731e490cb5fd0c456f265dc986842d3d69906ad6b94235d19255931af
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SHA512
7cd233e53213d0bb530b6e73ae023d751ee3cb957ac58764f93b31817bd06ff80a42ae86f96fbb5c11c71ee330f041c56325fe2121198b408fd3ddd42c09515a
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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