General
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Target
niggt.exe
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Size
690KB
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Sample
241210-vm9k5a1jhw
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MD5
4c9704749ddbb514b5c60184f13fe7e7
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SHA1
20e83ba94bda82acd3bd89a012b22143cc1ddb94
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SHA256
109ebb16b070770f48359880d6f643c23612a1bb56054790c164b0cde4312880
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SHA512
2d964ebb467e0ac41904dd8650ecfc4386da1e7ec52727a665239586809b52faec72c7e7ecf7e93b7b4dcb36c69dc239d79772bab4e9d6b57800b09691f9fabc
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SSDEEP
12288:F9HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9Ek5C/h2x:PZ1xuVVjfFoynPaVBUR8f+kN10EBk
Malware Config
Extracted
darkcomet
Guest16
rose324-37147.portmap.host:37147
DC_MUTEX-2DNRPLM
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InstallPath
MSDCSC\msdcsc.exe
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gencode
tLDL0GjSYFsS
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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
realtekaudio
Targets
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Target
niggt.exe
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Size
690KB
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MD5
4c9704749ddbb514b5c60184f13fe7e7
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SHA1
20e83ba94bda82acd3bd89a012b22143cc1ddb94
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SHA256
109ebb16b070770f48359880d6f643c23612a1bb56054790c164b0cde4312880
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SHA512
2d964ebb467e0ac41904dd8650ecfc4386da1e7ec52727a665239586809b52faec72c7e7ecf7e93b7b4dcb36c69dc239d79772bab4e9d6b57800b09691f9fabc
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SSDEEP
12288:F9HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9Ek5C/h2x:PZ1xuVVjfFoynPaVBUR8f+kN10EBk
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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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Disables Task Manager via registry modification
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A potential corporate email address has been identified in the URL: [email protected]
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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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Deletes itself
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Executes dropped EXE
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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
Hide Artifacts
2Hidden Files and Directories
2Impair Defenses
3Disable or Modify System Firewall
1Disable or Modify Tools
2Modify Registry
7