Analysis
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max time kernel
148s -
max time network
146s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
11-04-2024 15:45
Behavioral task
behavioral1
Sample
488b3504a1017ce9135816b3eefcdabfcd510f2e76ec32c946dd7f34c5d856ee.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
488b3504a1017ce9135816b3eefcdabfcd510f2e76ec32c946dd7f34c5d856ee.exe
Resource
win10v2004-20240226-en
General
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Target
488b3504a1017ce9135816b3eefcdabfcd510f2e76ec32c946dd7f34c5d856ee.exe
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Size
1.5MB
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MD5
e5ac403126ca121393b42a4598498cbd
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SHA1
9f29ca8c7e7e31e98e89f0f55079f36606bcdd5e
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SHA256
488b3504a1017ce9135816b3eefcdabfcd510f2e76ec32c946dd7f34c5d856ee
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SHA512
fdcd1675b2754fb22e28988c814fa2cddaa8984cdf418b3b2332874a2c1f450c43edc7f8ccbe407b01d6b66b39bc8476616b306f7f070280cfa6b58778096783
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SSDEEP
24576:xZ1xuVVjfFoynPaVBUR8f+kN10EB1x5cyLzoy4z5LPrMcs5dmYOYFQn1s97QJv8E:LQDgok30mzbL0zzJsKJS1QJv8wBT
Malware Config
Extracted
darkcomet
Guest16
192.168.124.132:1604
DC_MUTEX-LNCZHL2
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InstallPath
MSDCSC\msdcsc.exe
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gencode
pdA8zwNEGd25
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install
true
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offline_keylogger
true
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persistence
false
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reg_key
MicroUpdate
Signatures
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Modifies WinLogon for persistence 2 TTPs 1 IoCs
Processes:
488b3504a1017ce9135816b3eefcdabfcd510f2e76ec32c946dd7f34c5d856ee.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" 488b3504a1017ce9135816b3eefcdabfcd510f2e76ec32c946dd7f34c5d856ee.exe -
Drops file in Drivers directory 1 IoCs
Processes:
488b3504a1017ce9135816b3eefcdabfcd510f2e76ec32c946dd7f34c5d856ee.exedescription ioc process File opened for modification C:\Windows\system32\drivers\etc\hosts 488b3504a1017ce9135816b3eefcdabfcd510f2e76ec32c946dd7f34c5d856ee.exe -
Executes dropped EXE 1 IoCs
Processes:
msdcsc.exepid process 2656 msdcsc.exe -
Loads dropped DLL 2 IoCs
Processes:
488b3504a1017ce9135816b3eefcdabfcd510f2e76ec32c946dd7f34c5d856ee.exepid process 2924 488b3504a1017ce9135816b3eefcdabfcd510f2e76ec32c946dd7f34c5d856ee.exe 2924 488b3504a1017ce9135816b3eefcdabfcd510f2e76ec32c946dd7f34c5d856ee.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
488b3504a1017ce9135816b3eefcdabfcd510f2e76ec32c946dd7f34c5d856ee.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe" 488b3504a1017ce9135816b3eefcdabfcd510f2e76ec32c946dd7f34c5d856ee.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious use of AdjustPrivilegeToken 46 IoCs
Processes:
488b3504a1017ce9135816b3eefcdabfcd510f2e76ec32c946dd7f34c5d856ee.exemsdcsc.exedescription pid process Token: SeIncreaseQuotaPrivilege 2924 488b3504a1017ce9135816b3eefcdabfcd510f2e76ec32c946dd7f34c5d856ee.exe Token: SeSecurityPrivilege 2924 488b3504a1017ce9135816b3eefcdabfcd510f2e76ec32c946dd7f34c5d856ee.exe Token: SeTakeOwnershipPrivilege 2924 488b3504a1017ce9135816b3eefcdabfcd510f2e76ec32c946dd7f34c5d856ee.exe Token: SeLoadDriverPrivilege 2924 488b3504a1017ce9135816b3eefcdabfcd510f2e76ec32c946dd7f34c5d856ee.exe Token: SeSystemProfilePrivilege 2924 488b3504a1017ce9135816b3eefcdabfcd510f2e76ec32c946dd7f34c5d856ee.exe Token: SeSystemtimePrivilege 2924 488b3504a1017ce9135816b3eefcdabfcd510f2e76ec32c946dd7f34c5d856ee.exe Token: SeProfSingleProcessPrivilege 2924 488b3504a1017ce9135816b3eefcdabfcd510f2e76ec32c946dd7f34c5d856ee.exe Token: SeIncBasePriorityPrivilege 2924 488b3504a1017ce9135816b3eefcdabfcd510f2e76ec32c946dd7f34c5d856ee.exe Token: SeCreatePagefilePrivilege 2924 488b3504a1017ce9135816b3eefcdabfcd510f2e76ec32c946dd7f34c5d856ee.exe Token: SeBackupPrivilege 2924 488b3504a1017ce9135816b3eefcdabfcd510f2e76ec32c946dd7f34c5d856ee.exe Token: SeRestorePrivilege 2924 488b3504a1017ce9135816b3eefcdabfcd510f2e76ec32c946dd7f34c5d856ee.exe Token: SeShutdownPrivilege 2924 488b3504a1017ce9135816b3eefcdabfcd510f2e76ec32c946dd7f34c5d856ee.exe Token: SeDebugPrivilege 2924 488b3504a1017ce9135816b3eefcdabfcd510f2e76ec32c946dd7f34c5d856ee.exe Token: SeSystemEnvironmentPrivilege 2924 488b3504a1017ce9135816b3eefcdabfcd510f2e76ec32c946dd7f34c5d856ee.exe Token: SeChangeNotifyPrivilege 2924 488b3504a1017ce9135816b3eefcdabfcd510f2e76ec32c946dd7f34c5d856ee.exe Token: SeRemoteShutdownPrivilege 2924 488b3504a1017ce9135816b3eefcdabfcd510f2e76ec32c946dd7f34c5d856ee.exe Token: SeUndockPrivilege 2924 488b3504a1017ce9135816b3eefcdabfcd510f2e76ec32c946dd7f34c5d856ee.exe Token: SeManageVolumePrivilege 2924 488b3504a1017ce9135816b3eefcdabfcd510f2e76ec32c946dd7f34c5d856ee.exe Token: SeImpersonatePrivilege 2924 488b3504a1017ce9135816b3eefcdabfcd510f2e76ec32c946dd7f34c5d856ee.exe Token: SeCreateGlobalPrivilege 2924 488b3504a1017ce9135816b3eefcdabfcd510f2e76ec32c946dd7f34c5d856ee.exe Token: 33 2924 488b3504a1017ce9135816b3eefcdabfcd510f2e76ec32c946dd7f34c5d856ee.exe Token: 34 2924 488b3504a1017ce9135816b3eefcdabfcd510f2e76ec32c946dd7f34c5d856ee.exe Token: 35 2924 488b3504a1017ce9135816b3eefcdabfcd510f2e76ec32c946dd7f34c5d856ee.exe Token: SeIncreaseQuotaPrivilege 2656 msdcsc.exe Token: SeSecurityPrivilege 2656 msdcsc.exe Token: SeTakeOwnershipPrivilege 2656 msdcsc.exe Token: SeLoadDriverPrivilege 2656 msdcsc.exe Token: SeSystemProfilePrivilege 2656 msdcsc.exe Token: SeSystemtimePrivilege 2656 msdcsc.exe Token: SeProfSingleProcessPrivilege 2656 msdcsc.exe Token: SeIncBasePriorityPrivilege 2656 msdcsc.exe Token: SeCreatePagefilePrivilege 2656 msdcsc.exe Token: SeBackupPrivilege 2656 msdcsc.exe Token: SeRestorePrivilege 2656 msdcsc.exe Token: SeShutdownPrivilege 2656 msdcsc.exe Token: SeDebugPrivilege 2656 msdcsc.exe Token: SeSystemEnvironmentPrivilege 2656 msdcsc.exe Token: SeChangeNotifyPrivilege 2656 msdcsc.exe Token: SeRemoteShutdownPrivilege 2656 msdcsc.exe Token: SeUndockPrivilege 2656 msdcsc.exe Token: SeManageVolumePrivilege 2656 msdcsc.exe Token: SeImpersonatePrivilege 2656 msdcsc.exe Token: SeCreateGlobalPrivilege 2656 msdcsc.exe Token: 33 2656 msdcsc.exe Token: 34 2656 msdcsc.exe Token: 35 2656 msdcsc.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
Processes:
DllHost.exepid process 2972 DllHost.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
msdcsc.exepid process 2656 msdcsc.exe -
Suspicious use of WriteProcessMemory 4 IoCs
Processes:
488b3504a1017ce9135816b3eefcdabfcd510f2e76ec32c946dd7f34c5d856ee.exedescription pid process target process PID 2924 wrote to memory of 2656 2924 488b3504a1017ce9135816b3eefcdabfcd510f2e76ec32c946dd7f34c5d856ee.exe msdcsc.exe PID 2924 wrote to memory of 2656 2924 488b3504a1017ce9135816b3eefcdabfcd510f2e76ec32c946dd7f34c5d856ee.exe msdcsc.exe PID 2924 wrote to memory of 2656 2924 488b3504a1017ce9135816b3eefcdabfcd510f2e76ec32c946dd7f34c5d856ee.exe msdcsc.exe PID 2924 wrote to memory of 2656 2924 488b3504a1017ce9135816b3eefcdabfcd510f2e76ec32c946dd7f34c5d856ee.exe msdcsc.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\488b3504a1017ce9135816b3eefcdabfcd510f2e76ec32c946dd7f34c5d856ee.exe"C:\Users\Admin\AppData\Local\Temp\488b3504a1017ce9135816b3eefcdabfcd510f2e76ec32c946dd7f34c5d856ee.exe"1⤵
- Modifies WinLogon for persistence
- Drops file in Drivers directory
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
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C:\Windows\SysWOW64\DllHost.exeC:\Windows\SysWOW64\DllHost.exe /Processid:{76D0CB12-7604-4048-B83C-1005C7DDC503}1⤵
- Suspicious use of FindShellTrayWindow
Network
MITRE ATT&CK Matrix ATT&CK v13
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Temp\CHRYSANTHEMUM.JPGFilesize
858KB
MD5076e3caed758a1c18c91a0e9cae3368f
SHA1f5f8ad26819a471318d24631fa5055036712a87e
SHA256954f7d96502b5c5fe2e98a5045bca7f5e9ba11e3dbf92a5c0214a6aa4c7f2208
SHA5127b8b9adf2dc67871b06fb9094bcd81e8834643cd9af96a0af591c2978bbe2fb7f53ff9b54ae09099aed97db727cd42df4ef02662ef4c6d7cf8023561ddccc7f2
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\Users\Admin\Documents\MSDCSC\msdcsc.exeFilesize
1.5MB
MD5e5ac403126ca121393b42a4598498cbd
SHA19f29ca8c7e7e31e98e89f0f55079f36606bcdd5e
SHA256488b3504a1017ce9135816b3eefcdabfcd510f2e76ec32c946dd7f34c5d856ee
SHA512fdcd1675b2754fb22e28988c814fa2cddaa8984cdf418b3b2332874a2c1f450c43edc7f8ccbe407b01d6b66b39bc8476616b306f7f070280cfa6b58778096783
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memory/2656-17-0x00000000002F0000-0x00000000002F1000-memory.dmpFilesize
4KB
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memory/2656-20-0x0000000000400000-0x0000000000590000-memory.dmpFilesize
1.6MB
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memory/2656-23-0x0000000000400000-0x0000000000590000-memory.dmpFilesize
1.6MB
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memory/2924-0-0x0000000000720000-0x0000000000721000-memory.dmpFilesize
4KB
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memory/2924-5-0x0000000003950000-0x0000000003952000-memory.dmpFilesize
8KB
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memory/2924-19-0x0000000000400000-0x0000000000590000-memory.dmpFilesize
1.6MB
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memory/2972-6-0x00000000001F0000-0x00000000001F2000-memory.dmpFilesize
8KB
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memory/2972-7-0x00000000003A0000-0x00000000003A1000-memory.dmpFilesize
4KB
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memory/2972-22-0x00000000003A0000-0x00000000003A1000-memory.dmpFilesize
4KB