General
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Target
c0e63dffeadeefd38d63f38be833bf89dcc0b7806035dfc8791c8ab21dc2570fexe_JC.exe
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Size
1.4MB
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Sample
230811-ry3p6sdg57
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MD5
768c2123139a457a8b6b8cdfb3831041
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SHA1
9612f352f2e8cb0baa050353385d194287f563a6
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SHA256
c0e63dffeadeefd38d63f38be833bf89dcc0b7806035dfc8791c8ab21dc2570f
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SHA512
df64bd87099df83753ccb9200ce8d98d669e95fc765ac04e1e16537b6577e81f9a24d51649aa6049ca6cec430b7c0067543894beb7f418d03372ea65119b1024
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SSDEEP
24576:U2G/nvxW3Ww0tRp8GiXTBhq7yRDvHcUcjUvy0lr3Tl6icOB/UWoT:UbA30H4zF0UMSAicOB/UWk
Static task
static1
Behavioral task
behavioral1
Sample
c0e63dffeadeefd38d63f38be833bf89dcc0b7806035dfc8791c8ab21dc2570fexe_JC.exe
Resource
win7-20230712-en
Behavioral task
behavioral2
Sample
c0e63dffeadeefd38d63f38be833bf89dcc0b7806035dfc8791c8ab21dc2570fexe_JC.exe
Resource
win10v2004-20230703-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
c0e63dffeadeefd38d63f38be833bf89dcc0b7806035dfc8791c8ab21dc2570fexe_JC.exe
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Size
1.4MB
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MD5
768c2123139a457a8b6b8cdfb3831041
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SHA1
9612f352f2e8cb0baa050353385d194287f563a6
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SHA256
c0e63dffeadeefd38d63f38be833bf89dcc0b7806035dfc8791c8ab21dc2570f
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SHA512
df64bd87099df83753ccb9200ce8d98d669e95fc765ac04e1e16537b6577e81f9a24d51649aa6049ca6cec430b7c0067543894beb7f418d03372ea65119b1024
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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