General
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Target
c58cc6410dfc930c70caded805f88e2d.exe
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Size
1.4MB
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Sample
230801-mzjapsfc95
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MD5
c58cc6410dfc930c70caded805f88e2d
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SHA1
0367375fad04729c9f53b18436e08ff1fe76c153
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SHA256
295a185629cf9edf7bcdddd8cf1a68c95bb82f4debfad3f5540075feada42d85
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SHA512
8540fd3c97604837b15e0c3d498edc8b0acf3ee93aae95a753ac3fed6416b2e5273938bf0f134ef96bcb9a0cfec16ab7a452865e36abeb0e43d6d096cbbba065
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SSDEEP
24576:U2G/nvxW3Ww0tRp8GiXTBhq7yRDvHcUcjUvy0lr3Tl6icOB/UWoT:UbA30H4zF0UMSAicOB/UWk
Static task
static1
Behavioral task
behavioral1
Sample
c58cc6410dfc930c70caded805f88e2d.exe
Resource
win7-20230712-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
c58cc6410dfc930c70caded805f88e2d.exe
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Size
1.4MB
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MD5
c58cc6410dfc930c70caded805f88e2d
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SHA1
0367375fad04729c9f53b18436e08ff1fe76c153
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SHA256
295a185629cf9edf7bcdddd8cf1a68c95bb82f4debfad3f5540075feada42d85
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SHA512
8540fd3c97604837b15e0c3d498edc8b0acf3ee93aae95a753ac3fed6416b2e5273938bf0f134ef96bcb9a0cfec16ab7a452865e36abeb0e43d6d096cbbba065
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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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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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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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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