Analysis
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max time kernel
150s -
max time network
109s -
platform
windows10-2004_x64 -
resource
win10v2004-20240709-en -
resource tags
arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system -
submitted
26-07-2024 02:05
Behavioral task
behavioral1
Sample
af42c9c8dbe06b86b405ebafd55d3683ef50756422193154797c089d6fc056fe.exe
Resource
win7-20240704-en
General
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Target
af42c9c8dbe06b86b405ebafd55d3683ef50756422193154797c089d6fc056fe.exe
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Size
691KB
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MD5
e2d5c62c52be4b7a373943783d03d8b1
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SHA1
3a115983e2ac0b94982ad5c9e701225151875ca6
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SHA256
af42c9c8dbe06b86b405ebafd55d3683ef50756422193154797c089d6fc056fe
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SHA512
78d179ac338bb9e78909aadb1ffa7cc7fc4b9c4136dc1fb14e8c63916f6b7da93722aa7dccf7afdc05548d3657ea7c95608a4a60fee6a3b09418b78f5074b64e
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SSDEEP
12288:Y9HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9EkNC/O:MZ1xuVVjfFoynPaVBUR8f+kN10Ed
Malware Config
Extracted
darkcomet
Guest16
jvjv2044duck33.duckdns.org:1604
DC_MUTEX-U9J0V31
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InstallPath
MSDCSC\msdcsc.exe
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gencode
4xYePg256T0S
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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
WindowsTemp
Signatures
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Modifies WinLogon for persistence 2 TTPs 1 IoCs
Processes:
af42c9c8dbe06b86b405ebafd55d3683ef50756422193154797c089d6fc056fe.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe" af42c9c8dbe06b86b405ebafd55d3683ef50756422193154797c089d6fc056fe.exe -
Sets file to hidden 1 TTPs 2 IoCs
Modifies file attributes to stop it showing in Explorer etc.
Processes:
attrib.exeattrib.exepid process 4228 attrib.exe 4780 attrib.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
af42c9c8dbe06b86b405ebafd55d3683ef50756422193154797c089d6fc056fe.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-2990742725-2267136959-192470804-1000\Control Panel\International\Geo\Nation af42c9c8dbe06b86b405ebafd55d3683ef50756422193154797c089d6fc056fe.exe -
Executes dropped EXE 2 IoCs
Processes:
ULTIMAMULTI2024.EXEmsdcsc.exepid process 3052 ULTIMAMULTI2024.EXE 1468 msdcsc.exe -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
af42c9c8dbe06b86b405ebafd55d3683ef50756422193154797c089d6fc056fe.exemsdcsc.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-2990742725-2267136959-192470804-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\WindowsTemp = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe" af42c9c8dbe06b86b405ebafd55d3683ef50756422193154797c089d6fc056fe.exe Set value (str) \REGISTRY\USER\S-1-5-21-2990742725-2267136959-192470804-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\WindowsTemp = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe" msdcsc.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Location Discovery: System Language Discovery 1 TTPs 8 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
Processes:
cmd.exeattrib.exeattrib.exemsdcsc.exenotepad.exeaf42c9c8dbe06b86b405ebafd55d3683ef50756422193154797c089d6fc056fe.exeULTIMAMULTI2024.EXEcmd.exedescription ioc process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language attrib.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language attrib.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language msdcsc.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language notepad.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language af42c9c8dbe06b86b405ebafd55d3683ef50756422193154797c089d6fc056fe.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language ULTIMAMULTI2024.EXE Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe -
Modifies registry class 1 IoCs
Processes:
af42c9c8dbe06b86b405ebafd55d3683ef50756422193154797c089d6fc056fe.exedescription ioc process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\ af42c9c8dbe06b86b405ebafd55d3683ef50756422193154797c089d6fc056fe.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
Processes:
msdcsc.exepid process 1468 msdcsc.exe -
Suspicious use of AdjustPrivilegeToken 48 IoCs
Processes:
af42c9c8dbe06b86b405ebafd55d3683ef50756422193154797c089d6fc056fe.exemsdcsc.exedescription pid process Token: SeIncreaseQuotaPrivilege 436 af42c9c8dbe06b86b405ebafd55d3683ef50756422193154797c089d6fc056fe.exe Token: SeSecurityPrivilege 436 af42c9c8dbe06b86b405ebafd55d3683ef50756422193154797c089d6fc056fe.exe Token: SeTakeOwnershipPrivilege 436 af42c9c8dbe06b86b405ebafd55d3683ef50756422193154797c089d6fc056fe.exe Token: SeLoadDriverPrivilege 436 af42c9c8dbe06b86b405ebafd55d3683ef50756422193154797c089d6fc056fe.exe Token: SeSystemProfilePrivilege 436 af42c9c8dbe06b86b405ebafd55d3683ef50756422193154797c089d6fc056fe.exe Token: SeSystemtimePrivilege 436 af42c9c8dbe06b86b405ebafd55d3683ef50756422193154797c089d6fc056fe.exe Token: SeProfSingleProcessPrivilege 436 af42c9c8dbe06b86b405ebafd55d3683ef50756422193154797c089d6fc056fe.exe Token: SeIncBasePriorityPrivilege 436 af42c9c8dbe06b86b405ebafd55d3683ef50756422193154797c089d6fc056fe.exe Token: SeCreatePagefilePrivilege 436 af42c9c8dbe06b86b405ebafd55d3683ef50756422193154797c089d6fc056fe.exe Token: SeBackupPrivilege 436 af42c9c8dbe06b86b405ebafd55d3683ef50756422193154797c089d6fc056fe.exe Token: SeRestorePrivilege 436 af42c9c8dbe06b86b405ebafd55d3683ef50756422193154797c089d6fc056fe.exe Token: SeShutdownPrivilege 436 af42c9c8dbe06b86b405ebafd55d3683ef50756422193154797c089d6fc056fe.exe Token: SeDebugPrivilege 436 af42c9c8dbe06b86b405ebafd55d3683ef50756422193154797c089d6fc056fe.exe Token: SeSystemEnvironmentPrivilege 436 af42c9c8dbe06b86b405ebafd55d3683ef50756422193154797c089d6fc056fe.exe Token: SeChangeNotifyPrivilege 436 af42c9c8dbe06b86b405ebafd55d3683ef50756422193154797c089d6fc056fe.exe Token: SeRemoteShutdownPrivilege 436 af42c9c8dbe06b86b405ebafd55d3683ef50756422193154797c089d6fc056fe.exe Token: SeUndockPrivilege 436 af42c9c8dbe06b86b405ebafd55d3683ef50756422193154797c089d6fc056fe.exe Token: SeManageVolumePrivilege 436 af42c9c8dbe06b86b405ebafd55d3683ef50756422193154797c089d6fc056fe.exe Token: SeImpersonatePrivilege 436 af42c9c8dbe06b86b405ebafd55d3683ef50756422193154797c089d6fc056fe.exe Token: SeCreateGlobalPrivilege 436 af42c9c8dbe06b86b405ebafd55d3683ef50756422193154797c089d6fc056fe.exe Token: 33 436 af42c9c8dbe06b86b405ebafd55d3683ef50756422193154797c089d6fc056fe.exe Token: 34 436 af42c9c8dbe06b86b405ebafd55d3683ef50756422193154797c089d6fc056fe.exe Token: 35 436 af42c9c8dbe06b86b405ebafd55d3683ef50756422193154797c089d6fc056fe.exe Token: 36 436 af42c9c8dbe06b86b405ebafd55d3683ef50756422193154797c089d6fc056fe.exe Token: SeIncreaseQuotaPrivilege 1468 msdcsc.exe Token: SeSecurityPrivilege 1468 msdcsc.exe Token: SeTakeOwnershipPrivilege 1468 msdcsc.exe Token: SeLoadDriverPrivilege 1468 msdcsc.exe Token: SeSystemProfilePrivilege 1468 msdcsc.exe Token: SeSystemtimePrivilege 1468 msdcsc.exe Token: SeProfSingleProcessPrivilege 1468 msdcsc.exe Token: SeIncBasePriorityPrivilege 1468 msdcsc.exe Token: SeCreatePagefilePrivilege 1468 msdcsc.exe Token: SeBackupPrivilege 1468 msdcsc.exe Token: SeRestorePrivilege 1468 msdcsc.exe Token: SeShutdownPrivilege 1468 msdcsc.exe Token: SeDebugPrivilege 1468 msdcsc.exe Token: SeSystemEnvironmentPrivilege 1468 msdcsc.exe Token: SeChangeNotifyPrivilege 1468 msdcsc.exe Token: SeRemoteShutdownPrivilege 1468 msdcsc.exe Token: SeUndockPrivilege 1468 msdcsc.exe Token: SeManageVolumePrivilege 1468 msdcsc.exe Token: SeImpersonatePrivilege 1468 msdcsc.exe Token: SeCreateGlobalPrivilege 1468 msdcsc.exe Token: 33 1468 msdcsc.exe Token: 34 1468 msdcsc.exe Token: 35 1468 msdcsc.exe Token: 36 1468 msdcsc.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
msdcsc.exepid process 1468 msdcsc.exe -
Suspicious use of WriteProcessMemory 40 IoCs
Processes:
af42c9c8dbe06b86b405ebafd55d3683ef50756422193154797c089d6fc056fe.execmd.execmd.exemsdcsc.exedescription pid process target process PID 436 wrote to memory of 3668 436 af42c9c8dbe06b86b405ebafd55d3683ef50756422193154797c089d6fc056fe.exe cmd.exe PID 436 wrote to memory of 3668 436 af42c9c8dbe06b86b405ebafd55d3683ef50756422193154797c089d6fc056fe.exe cmd.exe PID 436 wrote to memory of 3668 436 af42c9c8dbe06b86b405ebafd55d3683ef50756422193154797c089d6fc056fe.exe cmd.exe PID 436 wrote to memory of 2528 436 af42c9c8dbe06b86b405ebafd55d3683ef50756422193154797c089d6fc056fe.exe cmd.exe PID 436 wrote to memory of 2528 436 af42c9c8dbe06b86b405ebafd55d3683ef50756422193154797c089d6fc056fe.exe cmd.exe PID 436 wrote to memory of 2528 436 af42c9c8dbe06b86b405ebafd55d3683ef50756422193154797c089d6fc056fe.exe cmd.exe PID 436 wrote to memory of 3052 436 af42c9c8dbe06b86b405ebafd55d3683ef50756422193154797c089d6fc056fe.exe ULTIMAMULTI2024.EXE PID 436 wrote to memory of 3052 436 af42c9c8dbe06b86b405ebafd55d3683ef50756422193154797c089d6fc056fe.exe ULTIMAMULTI2024.EXE PID 436 wrote to memory of 3052 436 af42c9c8dbe06b86b405ebafd55d3683ef50756422193154797c089d6fc056fe.exe ULTIMAMULTI2024.EXE PID 3668 wrote to memory of 4228 3668 cmd.exe attrib.exe PID 3668 wrote to memory of 4228 3668 cmd.exe attrib.exe PID 3668 wrote to memory of 4228 3668 cmd.exe attrib.exe PID 2528 wrote to memory of 4780 2528 cmd.exe attrib.exe PID 2528 wrote to memory of 4780 2528 cmd.exe attrib.exe PID 2528 wrote to memory of 4780 2528 cmd.exe attrib.exe PID 436 wrote to memory of 1468 436 af42c9c8dbe06b86b405ebafd55d3683ef50756422193154797c089d6fc056fe.exe msdcsc.exe PID 436 wrote to memory of 1468 436 af42c9c8dbe06b86b405ebafd55d3683ef50756422193154797c089d6fc056fe.exe msdcsc.exe PID 436 wrote to memory of 1468 436 af42c9c8dbe06b86b405ebafd55d3683ef50756422193154797c089d6fc056fe.exe msdcsc.exe PID 1468 wrote to memory of 3040 1468 msdcsc.exe notepad.exe PID 1468 wrote to memory of 3040 1468 msdcsc.exe notepad.exe PID 1468 wrote to memory of 3040 1468 msdcsc.exe notepad.exe PID 1468 wrote to memory of 3040 1468 msdcsc.exe notepad.exe PID 1468 wrote to memory of 3040 1468 msdcsc.exe notepad.exe PID 1468 wrote to memory of 3040 1468 msdcsc.exe notepad.exe PID 1468 wrote to memory of 3040 1468 msdcsc.exe notepad.exe PID 1468 wrote to memory of 3040 1468 msdcsc.exe notepad.exe PID 1468 wrote to memory of 3040 1468 msdcsc.exe notepad.exe PID 1468 wrote to memory of 3040 1468 msdcsc.exe notepad.exe PID 1468 wrote to memory of 3040 1468 msdcsc.exe notepad.exe PID 1468 wrote to memory of 3040 1468 msdcsc.exe notepad.exe PID 1468 wrote to memory of 3040 1468 msdcsc.exe notepad.exe PID 1468 wrote to memory of 3040 1468 msdcsc.exe notepad.exe PID 1468 wrote to memory of 3040 1468 msdcsc.exe notepad.exe PID 1468 wrote to memory of 3040 1468 msdcsc.exe notepad.exe PID 1468 wrote to memory of 3040 1468 msdcsc.exe notepad.exe PID 1468 wrote to memory of 3040 1468 msdcsc.exe notepad.exe PID 1468 wrote to memory of 3040 1468 msdcsc.exe notepad.exe PID 1468 wrote to memory of 3040 1468 msdcsc.exe notepad.exe PID 1468 wrote to memory of 3040 1468 msdcsc.exe notepad.exe PID 1468 wrote to memory of 3040 1468 msdcsc.exe notepad.exe -
Views/modifies file attributes 1 TTPs 2 IoCs
Processes:
attrib.exeattrib.exepid process 4228 attrib.exe 4780 attrib.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\af42c9c8dbe06b86b405ebafd55d3683ef50756422193154797c089d6fc056fe.exe"C:\Users\Admin\AppData\Local\Temp\af42c9c8dbe06b86b405ebafd55d3683ef50756422193154797c089d6fc056fe.exe"1⤵
- Modifies WinLogon for persistence
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:436 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\af42c9c8dbe06b86b405ebafd55d3683ef50756422193154797c089d6fc056fe.exe" +s +h2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3668 -
C:\Windows\SysWOW64\attrib.exeattrib "C:\Users\Admin\AppData\Local\Temp\af42c9c8dbe06b86b405ebafd55d3683ef50756422193154797c089d6fc056fe.exe" +s +h3⤵
- Sets file to hidden
- System Location Discovery: System Language Discovery
- Views/modifies file attributes
PID:4228 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp" +s +h2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2528 -
C:\Windows\SysWOW64\attrib.exeattrib "C:\Users\Admin\AppData\Local\Temp" +s +h3⤵
- Sets file to hidden
- System Location Discovery: System Language Discovery
- Views/modifies file attributes
PID:4780 -
C:\Users\Admin\AppData\Local\Temp\ULTIMAMULTI2024.EXE"C:\Users\Admin\AppData\Local\Temp\ULTIMAMULTI2024.EXE"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:3052 -
C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"2⤵
- Executes dropped EXE
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1468 -
C:\Windows\SysWOW64\notepad.exenotepad3⤵
- System Location Discovery: System Language Discovery
PID:3040
Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Privilege Escalation
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Defense Evasion
Hide Artifacts
2Hidden Files and Directories
2Modify Registry
2Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
33KB
MD50a1c8bdec0475a012049ae3eb0e7a0ef
SHA121e7736e539d9f3af66bdcb22b21cf7882aa531e
SHA256b58e20b5e2888cc7b0716bb858be28ff328d35e487f5c64dadc73cf6c3dd5df8
SHA5121c05f9daf94bb063238c42798ecc024afb6ca48d627e5d25d1898fc238283d96eb3b9fa3c7a4065fa2a805945dad0a9039c1807a35fdf5280d32afc35db857f5
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Filesize
691KB
MD5e2d5c62c52be4b7a373943783d03d8b1
SHA13a115983e2ac0b94982ad5c9e701225151875ca6
SHA256af42c9c8dbe06b86b405ebafd55d3683ef50756422193154797c089d6fc056fe
SHA51278d179ac338bb9e78909aadb1ffa7cc7fc4b9c4136dc1fb14e8c63916f6b7da93722aa7dccf7afdc05548d3657ea7c95608a4a60fee6a3b09418b78f5074b64e