Analysis
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max time kernel
150s -
max time network
141s -
platform
windows10-2004_x64 -
resource
win10v2004-20250217-en -
resource tags
arch:x64arch:x86image:win10v2004-20250217-enlocale:en-usos:windows10-2004-x64system -
submitted
02/03/2025, 01:17
Behavioral task
behavioral1
Sample
501377699da121100bc6e9180ecf9471b85264c2ea22641701b7d21995e3c3bb.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
501377699da121100bc6e9180ecf9471b85264c2ea22641701b7d21995e3c3bb.exe
Resource
win10v2004-20250217-en
General
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Target
501377699da121100bc6e9180ecf9471b85264c2ea22641701b7d21995e3c3bb.exe
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Size
1.1MB
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MD5
a77502350cda394c2d5545f3e0978d6c
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SHA1
cd2852066d18f90cccda274627d754cd7a10a901
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SHA256
501377699da121100bc6e9180ecf9471b85264c2ea22641701b7d21995e3c3bb
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SHA512
230391cfa3c129317c5efc312021acdc7b7f3f7f95639e6f904217eacf83e5e4542000b26530fada8b2e8ed0805dab5851e2a1803e227f9dcaa8fcb6b9558b4c
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SSDEEP
24576:D1Z1xuVVjfFoynPaVBUR8f+kN10EBmmbm:DPQDgok30dmbm
Malware Config
Extracted
darkcomet
Guest16
egegeg.duckdns.org:1604
DC_MUTEX-GMXC7Q3
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InstallPath
MSDCSC\msdcsc.exe
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gencode
bEqrgGM1ijfq
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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
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\\msdcsc.exe" F.EXE -
Modifies firewall policy service 3 TTPs 3 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile msdcsc.exe Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\EnableFirewall = "0" msdcsc.exe Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DisableNotifications = "0" msdcsc.exe -
Modifies security service 2 TTPs 1 IoCs
description ioc Process Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\wscsvc\Start = "4" msdcsc.exe -
Windows security bypass 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1" msdcsc.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1" msdcsc.exe -
Disables RegEdit via registry modification 1 IoCs
description ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-3181990009-820930284-137514597-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1" msdcsc.exe -
Disables Task Manager via registry modification
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Sets file to hidden 1 TTPs 2 IoCs
Modifies file attributes to stop it showing in Explorer etc.
pid Process 3580 attrib.exe 4628 attrib.exe -
Checks computer location settings 2 TTPs 2 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-3181990009-820930284-137514597-1000\Control Panel\International\Geo\Nation 501377699da121100bc6e9180ecf9471b85264c2ea22641701b7d21995e3c3bb.exe Key value queried \REGISTRY\USER\S-1-5-21-3181990009-820930284-137514597-1000\Control Panel\International\Geo\Nation F.EXE -
Executes dropped EXE 2 IoCs
pid Process 4896 F.EXE 3348 msdcsc.exe -
Windows security modification 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1" msdcsc.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1" msdcsc.exe -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3181990009-820930284-137514597-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe" F.EXE Set value (str) \REGISTRY\USER\S-1-5-21-3181990009-820930284-137514597-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "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 9 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 attrib.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 501377699da121100bc6e9180ecf9471b85264c2ea22641701b7d21995e3c3bb.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 F.EXE Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language notepad.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe -
Modifies registry class 1 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\ F.EXE -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 3348 msdcsc.exe -
Suspicious use of AdjustPrivilegeToken 48 IoCs
description pid Process Token: SeIncreaseQuotaPrivilege 4896 F.EXE Token: SeSecurityPrivilege 4896 F.EXE Token: SeTakeOwnershipPrivilege 4896 F.EXE Token: SeLoadDriverPrivilege 4896 F.EXE Token: SeSystemProfilePrivilege 4896 F.EXE Token: SeSystemtimePrivilege 4896 F.EXE Token: SeProfSingleProcessPrivilege 4896 F.EXE Token: SeIncBasePriorityPrivilege 4896 F.EXE Token: SeCreatePagefilePrivilege 4896 F.EXE Token: SeBackupPrivilege 4896 F.EXE Token: SeRestorePrivilege 4896 F.EXE Token: SeShutdownPrivilege 4896 F.EXE Token: SeDebugPrivilege 4896 F.EXE Token: SeSystemEnvironmentPrivilege 4896 F.EXE Token: SeChangeNotifyPrivilege 4896 F.EXE Token: SeRemoteShutdownPrivilege 4896 F.EXE Token: SeUndockPrivilege 4896 F.EXE Token: SeManageVolumePrivilege 4896 F.EXE Token: SeImpersonatePrivilege 4896 F.EXE Token: SeCreateGlobalPrivilege 4896 F.EXE Token: 33 4896 F.EXE Token: 34 4896 F.EXE Token: 35 4896 F.EXE Token: 36 4896 F.EXE Token: SeIncreaseQuotaPrivilege 3348 msdcsc.exe Token: SeSecurityPrivilege 3348 msdcsc.exe Token: SeTakeOwnershipPrivilege 3348 msdcsc.exe Token: SeLoadDriverPrivilege 3348 msdcsc.exe Token: SeSystemProfilePrivilege 3348 msdcsc.exe Token: SeSystemtimePrivilege 3348 msdcsc.exe Token: SeProfSingleProcessPrivilege 3348 msdcsc.exe Token: SeIncBasePriorityPrivilege 3348 msdcsc.exe Token: SeCreatePagefilePrivilege 3348 msdcsc.exe Token: SeBackupPrivilege 3348 msdcsc.exe Token: SeRestorePrivilege 3348 msdcsc.exe Token: SeShutdownPrivilege 3348 msdcsc.exe Token: SeDebugPrivilege 3348 msdcsc.exe Token: SeSystemEnvironmentPrivilege 3348 msdcsc.exe Token: SeChangeNotifyPrivilege 3348 msdcsc.exe Token: SeRemoteShutdownPrivilege 3348 msdcsc.exe Token: SeUndockPrivilege 3348 msdcsc.exe Token: SeManageVolumePrivilege 3348 msdcsc.exe Token: SeImpersonatePrivilege 3348 msdcsc.exe Token: SeCreateGlobalPrivilege 3348 msdcsc.exe Token: 33 3348 msdcsc.exe Token: 34 3348 msdcsc.exe Token: 35 3348 msdcsc.exe Token: 36 3348 msdcsc.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 3348 msdcsc.exe -
Suspicious use of WriteProcessMemory 57 IoCs
description pid Process procid_target PID 4936 wrote to memory of 4896 4936 501377699da121100bc6e9180ecf9471b85264c2ea22641701b7d21995e3c3bb.exe 88 PID 4936 wrote to memory of 4896 4936 501377699da121100bc6e9180ecf9471b85264c2ea22641701b7d21995e3c3bb.exe 88 PID 4936 wrote to memory of 4896 4936 501377699da121100bc6e9180ecf9471b85264c2ea22641701b7d21995e3c3bb.exe 88 PID 4896 wrote to memory of 3920 4896 F.EXE 89 PID 4896 wrote to memory of 3920 4896 F.EXE 89 PID 4896 wrote to memory of 3920 4896 F.EXE 89 PID 4896 wrote to memory of 5824 4896 F.EXE 90 PID 4896 wrote to memory of 5824 4896 F.EXE 90 PID 4896 wrote to memory of 5824 4896 F.EXE 90 PID 4896 wrote to memory of 2468 4896 F.EXE 92 PID 4896 wrote to memory of 2468 4896 F.EXE 92 PID 4896 wrote to memory of 2468 4896 F.EXE 92 PID 4896 wrote to memory of 2468 4896 F.EXE 92 PID 4896 wrote to memory of 2468 4896 F.EXE 92 PID 4896 wrote to memory of 2468 4896 F.EXE 92 PID 4896 wrote to memory of 2468 4896 F.EXE 92 PID 4896 wrote to memory of 2468 4896 F.EXE 92 PID 4896 wrote to memory of 2468 4896 F.EXE 92 PID 4896 wrote to memory of 2468 4896 F.EXE 92 PID 4896 wrote to memory of 2468 4896 F.EXE 92 PID 4896 wrote to memory of 2468 4896 F.EXE 92 PID 4896 wrote to memory of 2468 4896 F.EXE 92 PID 4896 wrote to memory of 2468 4896 F.EXE 92 PID 4896 wrote to memory of 2468 4896 F.EXE 92 PID 4896 wrote to memory of 2468 4896 F.EXE 92 PID 4896 wrote to memory of 2468 4896 F.EXE 92 PID 3920 wrote to memory of 3580 3920 cmd.exe 94 PID 3920 wrote to memory of 3580 3920 cmd.exe 94 PID 3920 wrote to memory of 3580 3920 cmd.exe 94 PID 5824 wrote to memory of 4628 5824 cmd.exe 95 PID 5824 wrote to memory of 4628 5824 cmd.exe 95 PID 5824 wrote to memory of 4628 5824 cmd.exe 95 PID 4896 wrote to memory of 3348 4896 F.EXE 96 PID 4896 wrote to memory of 3348 4896 F.EXE 96 PID 4896 wrote to memory of 3348 4896 F.EXE 96 PID 3348 wrote to memory of 5128 3348 msdcsc.exe 97 PID 3348 wrote to memory of 5128 3348 msdcsc.exe 97 PID 3348 wrote to memory of 5128 3348 msdcsc.exe 97 PID 3348 wrote to memory of 5128 3348 msdcsc.exe 97 PID 3348 wrote to memory of 5128 3348 msdcsc.exe 97 PID 3348 wrote to memory of 5128 3348 msdcsc.exe 97 PID 3348 wrote to memory of 5128 3348 msdcsc.exe 97 PID 3348 wrote to memory of 5128 3348 msdcsc.exe 97 PID 3348 wrote to memory of 5128 3348 msdcsc.exe 97 PID 3348 wrote to memory of 5128 3348 msdcsc.exe 97 PID 3348 wrote to memory of 5128 3348 msdcsc.exe 97 PID 3348 wrote to memory of 5128 3348 msdcsc.exe 97 PID 3348 wrote to memory of 5128 3348 msdcsc.exe 97 PID 3348 wrote to memory of 5128 3348 msdcsc.exe 97 PID 3348 wrote to memory of 5128 3348 msdcsc.exe 97 PID 3348 wrote to memory of 5128 3348 msdcsc.exe 97 PID 3348 wrote to memory of 5128 3348 msdcsc.exe 97 PID 3348 wrote to memory of 5128 3348 msdcsc.exe 97 PID 3348 wrote to memory of 5128 3348 msdcsc.exe 97 PID 3348 wrote to memory of 5128 3348 msdcsc.exe 97 PID 3348 wrote to memory of 5128 3348 msdcsc.exe 97 PID 3348 wrote to memory of 5128 3348 msdcsc.exe 97 -
System policy modification 1 TTPs 3 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\CurrentVersion msdcsc.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\CurrentVersion\Explorern msdcsc.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\CurrentVersion\Explorern\NoControlPanel = "1" msdcsc.exe -
Views/modifies file attributes 1 TTPs 2 IoCs
pid Process 3580 attrib.exe 4628 attrib.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\501377699da121100bc6e9180ecf9471b85264c2ea22641701b7d21995e3c3bb.exe"C:\Users\Admin\AppData\Local\Temp\501377699da121100bc6e9180ecf9471b85264c2ea22641701b7d21995e3c3bb.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4936 -
C:\Users\Admin\AppData\Local\Temp\F.EXE"C:\Users\Admin\AppData\Local\Temp\F.EXE"2⤵
- Modifies WinLogon for persistence
- Checks computer location settings
- Executes dropped EXE
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4896 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\F.EXE" +s +h3⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3920 -
C:\Windows\SysWOW64\attrib.exeattrib "C:\Users\Admin\AppData\Local\Temp\F.EXE" +s +h4⤵
- Sets file to hidden
- System Location Discovery: System Language Discovery
- Views/modifies file attributes
PID:3580
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp" +s +h3⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5824 -
C:\Windows\SysWOW64\attrib.exeattrib "C:\Users\Admin\AppData\Local\Temp" +s +h4⤵
- Sets file to hidden
- System Location Discovery: System Language Discovery
- Views/modifies file attributes
PID:4628
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C:\Windows\SysWOW64\notepad.exenotepad3⤵
- System Location Discovery: System Language Discovery
PID:2468
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C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"3⤵
- Modifies firewall policy service
- Modifies security service
- Windows security bypass
- Disables RegEdit via registry modification
- Executes dropped EXE
- Windows security modification
- 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
- System policy modification
PID:3348 -
C:\Windows\SysWOW64\notepad.exenotepad4⤵
- System Location Discovery: System Language Discovery
PID:5128
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Network
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
7Replay Monitor
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Downloads
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Filesize
857KB
MD5c72eec4eb51c62ad455de07d00a77898
SHA10251b8765a12ecb029bae796235e8283f04e96c4
SHA25693435ead1cf9caa1edc3c0018b2a98c05bc0fb44af68331f5562b9aebbae1f80
SHA51231da3b9a762d7a6e512e9cab8d7383e9f855d16e88652b49629ba51ef6f8b93c9032885e89d9ad5af7afad908bce179679883fcea85c86cc15411bae65018322