General
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Target
burpsuite.exe
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Size
208.5MB
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Sample
250201-btm6xs1jh1
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MD5
c620d52e37416cb660c9fdbc12b79620
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SHA1
c85d5a9b869c2dca927a2304f42f0c59a0943f85
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SHA256
43d6050cb107bbb3cc4023eb2f735e54b072759f08182098ef612474f028e68a
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SHA512
02e1ac86231815e5f476d8ce32dcf6e6dbab5618c835f4c27ab053d05730b8f56be9216c88ab1748b1d910c3ae9f79ea626c275b2860d56a7d65712ba4970406
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SSDEEP
6291456:xh3YtmOWCkh3PjGl8bJcA8HKWEuxp5HT:fYtmO6tPKMJUqWEuxv
Static task
static1
Malware Config
Extracted
quasar
1.3.0.0
loomis3
hapansystem.hopto.org:4444
QSR_MUTEX_0KwxSTm0dkBBRBLDt0
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encryption_key
s5qjX0nnX6JZYjQaaEO1
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install_name
svhostt.exe
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log_directory
Logs
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reconnect_delay
3000
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startup_key
svhostt
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subdirectory
SubDir
Targets
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Target
burpsuite.exe
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Size
208.5MB
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MD5
c620d52e37416cb660c9fdbc12b79620
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SHA1
c85d5a9b869c2dca927a2304f42f0c59a0943f85
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SHA256
43d6050cb107bbb3cc4023eb2f735e54b072759f08182098ef612474f028e68a
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SHA512
02e1ac86231815e5f476d8ce32dcf6e6dbab5618c835f4c27ab053d05730b8f56be9216c88ab1748b1d910c3ae9f79ea626c275b2860d56a7d65712ba4970406
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SSDEEP
6291456:xh3YtmOWCkh3PjGl8bJcA8HKWEuxp5HT:fYtmO6tPKMJUqWEuxv
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Quasar family
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Quasar payload
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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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Adds Run key to start application
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Checks installed software on the system
Looks up Uninstall key entries in the registry to enumerate software on the system.
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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
1Scheduled Task/Job
1Scheduled Task
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Scheduled Task
1