General
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Target
Ultima_Multihack.exe
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Size
6.4MB
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Sample
250114-gzxkfayqhx
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MD5
a2f01be6e514a6cd3424f9762f2c5b02
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SHA1
1553dd3e3556f2c82ab312659d5184952d0b9a4e
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SHA256
b3847c94d840dd53c3ba7248734424f06715deacf6dd6ebb727c2f1a7de4c945
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SHA512
fa9dd15980bd80bcd250a1ac990281824f822635b8d3bb7d1d1a78958c8ec084e775735c3c14c09337076c3f4fe1185cd06cfb4cd989fcc0be78bd99c577e616
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SSDEEP
196608:j6bFse+vAqC6Fe656nqpB9zDXq9frWSCuHynw:ebFsXIqje656qpB9zDa9DWSCwynw
Static task
static1
Malware Config
Extracted
darkcomet
Sazan
sussysdfffdfff343.duckdns.org:1604
DC_MUTEX-LJTACQW
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InstallPath
MSDCSC\msdcsc.exe
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gencode
l51rypEngfWg
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install
true
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offline_keylogger
true
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persistence
true
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reg_key
MicroUpdate
Targets
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Target
Ultima_Multihack.exe
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Size
6.4MB
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MD5
a2f01be6e514a6cd3424f9762f2c5b02
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SHA1
1553dd3e3556f2c82ab312659d5184952d0b9a4e
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SHA256
b3847c94d840dd53c3ba7248734424f06715deacf6dd6ebb727c2f1a7de4c945
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SHA512
fa9dd15980bd80bcd250a1ac990281824f822635b8d3bb7d1d1a78958c8ec084e775735c3c14c09337076c3f4fe1185cd06cfb4cd989fcc0be78bd99c577e616
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SSDEEP
196608:j6bFse+vAqC6Fe656nqpB9zDXq9frWSCuHynw:ebFsXIqje656qpB9zDa9DWSCwynw
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Darkcomet family
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Modifies WinLogon for persistence
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Modifies firewall policy service
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Modifies security service
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Disables RegEdit via registry modification
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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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Suspicious use of SetThreadContext
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MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Create or Modify System Process
2Windows Service
2Privilege Escalation
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Create or Modify System Process
2Windows Service
2Defense Evasion
Impair Defenses
3Disable or Modify System Firewall
1Disable or Modify Tools
2Modify Registry
6