Analysis
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max time kernel
150s -
max time network
152s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
02-12-2024 22:39
Static task
static1
Behavioral task
behavioral1
Sample
67278e924fbf238c50afb940de4e6ada4a59d31e4a1426f0dc55fcbc861f9f35.exe
Resource
win7-20240708-en
General
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Target
67278e924fbf238c50afb940de4e6ada4a59d31e4a1426f0dc55fcbc861f9f35.exe
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Size
822KB
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MD5
17862e1bb7c4b9fb784867e8c65c2e7b
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SHA1
3bd7ae06e686c2c9c3895c6bde4486628735964e
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SHA256
67278e924fbf238c50afb940de4e6ada4a59d31e4a1426f0dc55fcbc861f9f35
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SHA512
ea5f85a8aba818c5f40748bb8d8b9157307d8db2f920519d19b27e143df8f31207a0456b554a88da376f8acddb3b12fb351a3b47a6a26ca4bf3d56ecab614457
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SSDEEP
12288:9x9KMW9cK0ise8kqkvdmWP9Fe4IUGSq6F9e6NI4Avt+Mbi/NR+/C6sV:9x9KMs8yJe4NGSXM0I/vXinOBsV
Malware Config
Extracted
darkcomet
Guest16
xaniar.ddns.net:1604
DC_MUTEX-GC4NGLU
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InstallPath
MSDCSC\windows.exe
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gencode
aZHDx03jSchl
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install
true
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offline_keylogger
true
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password
111
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persistence
false
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reg_key
MicroUpdate
Signatures
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Darkcomet family
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Modifies WinLogon for persistence 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\Users\\Admin\\Documents\\MSDCSC\\windows.exe" 67278e924fbf238c50afb940de4e6ada4a59d31e4a1426f0dc55fcbc861f9f35.EXE -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\Control Panel\International\Geo\Nation 67278e924fbf238c50afb940de4e6ada4a59d31e4a1426f0dc55fcbc861f9f35.EXE -
Executes dropped EXE 2 IoCs
pid Process 3684 windows.exe 1388 windows.EXE -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\windows.exe" 67278e924fbf238c50afb940de4e6ada4a59d31e4a1426f0dc55fcbc861f9f35.EXE -
Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 2956 set thread context of 1484 2956 67278e924fbf238c50afb940de4e6ada4a59d31e4a1426f0dc55fcbc861f9f35.exe 83 PID 3684 set thread context of 1388 3684 windows.exe 85 -
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 4 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language windows.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language windows.EXE Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 67278e924fbf238c50afb940de4e6ada4a59d31e4a1426f0dc55fcbc861f9f35.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 67278e924fbf238c50afb940de4e6ada4a59d31e4a1426f0dc55fcbc861f9f35.EXE -
Suspicious use of AdjustPrivilegeToken 48 IoCs
description pid Process Token: SeIncreaseQuotaPrivilege 1484 67278e924fbf238c50afb940de4e6ada4a59d31e4a1426f0dc55fcbc861f9f35.EXE Token: SeSecurityPrivilege 1484 67278e924fbf238c50afb940de4e6ada4a59d31e4a1426f0dc55fcbc861f9f35.EXE Token: SeTakeOwnershipPrivilege 1484 67278e924fbf238c50afb940de4e6ada4a59d31e4a1426f0dc55fcbc861f9f35.EXE Token: SeLoadDriverPrivilege 1484 67278e924fbf238c50afb940de4e6ada4a59d31e4a1426f0dc55fcbc861f9f35.EXE Token: SeSystemProfilePrivilege 1484 67278e924fbf238c50afb940de4e6ada4a59d31e4a1426f0dc55fcbc861f9f35.EXE Token: SeSystemtimePrivilege 1484 67278e924fbf238c50afb940de4e6ada4a59d31e4a1426f0dc55fcbc861f9f35.EXE Token: SeProfSingleProcessPrivilege 1484 67278e924fbf238c50afb940de4e6ada4a59d31e4a1426f0dc55fcbc861f9f35.EXE Token: SeIncBasePriorityPrivilege 1484 67278e924fbf238c50afb940de4e6ada4a59d31e4a1426f0dc55fcbc861f9f35.EXE Token: SeCreatePagefilePrivilege 1484 67278e924fbf238c50afb940de4e6ada4a59d31e4a1426f0dc55fcbc861f9f35.EXE Token: SeBackupPrivilege 1484 67278e924fbf238c50afb940de4e6ada4a59d31e4a1426f0dc55fcbc861f9f35.EXE Token: SeRestorePrivilege 1484 67278e924fbf238c50afb940de4e6ada4a59d31e4a1426f0dc55fcbc861f9f35.EXE Token: SeShutdownPrivilege 1484 67278e924fbf238c50afb940de4e6ada4a59d31e4a1426f0dc55fcbc861f9f35.EXE Token: SeDebugPrivilege 1484 67278e924fbf238c50afb940de4e6ada4a59d31e4a1426f0dc55fcbc861f9f35.EXE Token: SeSystemEnvironmentPrivilege 1484 67278e924fbf238c50afb940de4e6ada4a59d31e4a1426f0dc55fcbc861f9f35.EXE Token: SeChangeNotifyPrivilege 1484 67278e924fbf238c50afb940de4e6ada4a59d31e4a1426f0dc55fcbc861f9f35.EXE Token: SeRemoteShutdownPrivilege 1484 67278e924fbf238c50afb940de4e6ada4a59d31e4a1426f0dc55fcbc861f9f35.EXE Token: SeUndockPrivilege 1484 67278e924fbf238c50afb940de4e6ada4a59d31e4a1426f0dc55fcbc861f9f35.EXE Token: SeManageVolumePrivilege 1484 67278e924fbf238c50afb940de4e6ada4a59d31e4a1426f0dc55fcbc861f9f35.EXE Token: SeImpersonatePrivilege 1484 67278e924fbf238c50afb940de4e6ada4a59d31e4a1426f0dc55fcbc861f9f35.EXE Token: SeCreateGlobalPrivilege 1484 67278e924fbf238c50afb940de4e6ada4a59d31e4a1426f0dc55fcbc861f9f35.EXE Token: 33 1484 67278e924fbf238c50afb940de4e6ada4a59d31e4a1426f0dc55fcbc861f9f35.EXE Token: 34 1484 67278e924fbf238c50afb940de4e6ada4a59d31e4a1426f0dc55fcbc861f9f35.EXE Token: 35 1484 67278e924fbf238c50afb940de4e6ada4a59d31e4a1426f0dc55fcbc861f9f35.EXE Token: 36 1484 67278e924fbf238c50afb940de4e6ada4a59d31e4a1426f0dc55fcbc861f9f35.EXE Token: SeIncreaseQuotaPrivilege 1388 windows.EXE Token: SeSecurityPrivilege 1388 windows.EXE Token: SeTakeOwnershipPrivilege 1388 windows.EXE Token: SeLoadDriverPrivilege 1388 windows.EXE Token: SeSystemProfilePrivilege 1388 windows.EXE Token: SeSystemtimePrivilege 1388 windows.EXE Token: SeProfSingleProcessPrivilege 1388 windows.EXE Token: SeIncBasePriorityPrivilege 1388 windows.EXE Token: SeCreatePagefilePrivilege 1388 windows.EXE Token: SeBackupPrivilege 1388 windows.EXE Token: SeRestorePrivilege 1388 windows.EXE Token: SeShutdownPrivilege 1388 windows.EXE Token: SeDebugPrivilege 1388 windows.EXE Token: SeSystemEnvironmentPrivilege 1388 windows.EXE Token: SeChangeNotifyPrivilege 1388 windows.EXE Token: SeRemoteShutdownPrivilege 1388 windows.EXE Token: SeUndockPrivilege 1388 windows.EXE Token: SeManageVolumePrivilege 1388 windows.EXE Token: SeImpersonatePrivilege 1388 windows.EXE Token: SeCreateGlobalPrivilege 1388 windows.EXE Token: 33 1388 windows.EXE Token: 34 1388 windows.EXE Token: 35 1388 windows.EXE Token: 36 1388 windows.EXE -
Suspicious use of SetWindowsHookEx 3 IoCs
pid Process 2956 67278e924fbf238c50afb940de4e6ada4a59d31e4a1426f0dc55fcbc861f9f35.exe 3684 windows.exe 1388 windows.EXE -
Suspicious use of WriteProcessMemory 31 IoCs
description pid Process procid_target PID 2956 wrote to memory of 1484 2956 67278e924fbf238c50afb940de4e6ada4a59d31e4a1426f0dc55fcbc861f9f35.exe 83 PID 2956 wrote to memory of 1484 2956 67278e924fbf238c50afb940de4e6ada4a59d31e4a1426f0dc55fcbc861f9f35.exe 83 PID 2956 wrote to memory of 1484 2956 67278e924fbf238c50afb940de4e6ada4a59d31e4a1426f0dc55fcbc861f9f35.exe 83 PID 2956 wrote to memory of 1484 2956 67278e924fbf238c50afb940de4e6ada4a59d31e4a1426f0dc55fcbc861f9f35.exe 83 PID 2956 wrote to memory of 1484 2956 67278e924fbf238c50afb940de4e6ada4a59d31e4a1426f0dc55fcbc861f9f35.exe 83 PID 2956 wrote to memory of 1484 2956 67278e924fbf238c50afb940de4e6ada4a59d31e4a1426f0dc55fcbc861f9f35.exe 83 PID 2956 wrote to memory of 1484 2956 67278e924fbf238c50afb940de4e6ada4a59d31e4a1426f0dc55fcbc861f9f35.exe 83 PID 2956 wrote to memory of 1484 2956 67278e924fbf238c50afb940de4e6ada4a59d31e4a1426f0dc55fcbc861f9f35.exe 83 PID 2956 wrote to memory of 1484 2956 67278e924fbf238c50afb940de4e6ada4a59d31e4a1426f0dc55fcbc861f9f35.exe 83 PID 2956 wrote to memory of 1484 2956 67278e924fbf238c50afb940de4e6ada4a59d31e4a1426f0dc55fcbc861f9f35.exe 83 PID 2956 wrote to memory of 1484 2956 67278e924fbf238c50afb940de4e6ada4a59d31e4a1426f0dc55fcbc861f9f35.exe 83 PID 2956 wrote to memory of 1484 2956 67278e924fbf238c50afb940de4e6ada4a59d31e4a1426f0dc55fcbc861f9f35.exe 83 PID 2956 wrote to memory of 1484 2956 67278e924fbf238c50afb940de4e6ada4a59d31e4a1426f0dc55fcbc861f9f35.exe 83 PID 2956 wrote to memory of 1484 2956 67278e924fbf238c50afb940de4e6ada4a59d31e4a1426f0dc55fcbc861f9f35.exe 83 PID 1484 wrote to memory of 3684 1484 67278e924fbf238c50afb940de4e6ada4a59d31e4a1426f0dc55fcbc861f9f35.EXE 84 PID 1484 wrote to memory of 3684 1484 67278e924fbf238c50afb940de4e6ada4a59d31e4a1426f0dc55fcbc861f9f35.EXE 84 PID 1484 wrote to memory of 3684 1484 67278e924fbf238c50afb940de4e6ada4a59d31e4a1426f0dc55fcbc861f9f35.EXE 84 PID 3684 wrote to memory of 1388 3684 windows.exe 85 PID 3684 wrote to memory of 1388 3684 windows.exe 85 PID 3684 wrote to memory of 1388 3684 windows.exe 85 PID 3684 wrote to memory of 1388 3684 windows.exe 85 PID 3684 wrote to memory of 1388 3684 windows.exe 85 PID 3684 wrote to memory of 1388 3684 windows.exe 85 PID 3684 wrote to memory of 1388 3684 windows.exe 85 PID 3684 wrote to memory of 1388 3684 windows.exe 85 PID 3684 wrote to memory of 1388 3684 windows.exe 85 PID 3684 wrote to memory of 1388 3684 windows.exe 85 PID 3684 wrote to memory of 1388 3684 windows.exe 85 PID 3684 wrote to memory of 1388 3684 windows.exe 85 PID 3684 wrote to memory of 1388 3684 windows.exe 85 PID 3684 wrote to memory of 1388 3684 windows.exe 85
Processes
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C:\Users\Admin\AppData\Local\Temp\67278e924fbf238c50afb940de4e6ada4a59d31e4a1426f0dc55fcbc861f9f35.exe"C:\Users\Admin\AppData\Local\Temp\67278e924fbf238c50afb940de4e6ada4a59d31e4a1426f0dc55fcbc861f9f35.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2956 -
C:\Users\Admin\AppData\Local\Temp\67278e924fbf238c50afb940de4e6ada4a59d31e4a1426f0dc55fcbc861f9f35.EXE"C:\Users\Admin\AppData\Local\Temp\67278e924fbf238c50afb940de4e6ada4a59d31e4a1426f0dc55fcbc861f9f35.EXE"2⤵
- Modifies WinLogon for persistence
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1484 -
C:\Users\Admin\Documents\MSDCSC\windows.exe"C:\Users\Admin\Documents\MSDCSC\windows.exe"3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3684 -
C:\Users\Admin\Documents\MSDCSC\windows.EXE"C:\Users\Admin\Documents\MSDCSC\windows.EXE"4⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:1388
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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
1Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
822KB
MD517862e1bb7c4b9fb784867e8c65c2e7b
SHA13bd7ae06e686c2c9c3895c6bde4486628735964e
SHA25667278e924fbf238c50afb940de4e6ada4a59d31e4a1426f0dc55fcbc861f9f35
SHA512ea5f85a8aba818c5f40748bb8d8b9157307d8db2f920519d19b27e143df8f31207a0456b554a88da376f8acddb3b12fb351a3b47a6a26ca4bf3d56ecab614457