Analysis
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max time kernel
149s -
max time network
138s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-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-1-5-21-1488793075-819845221-1497111674-1000\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 2868 attrib.exe 2872 attrib.exe -
Executes dropped EXE 2 IoCs
pid Process 2844 F.EXE 2756 msdcsc.exe -
Loads dropped DLL 4 IoCs
pid Process 2100 501377699da121100bc6e9180ecf9471b85264c2ea22641701b7d21995e3c3bb.exe 2100 501377699da121100bc6e9180ecf9471b85264c2ea22641701b7d21995e3c3bb.exe 2844 F.EXE 2844 F.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-1-5-21-1488793075-819845221-1497111674-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe" F.EXE Set value (str) \REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000\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 cmd.exe 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 501377699da121100bc6e9180ecf9471b85264c2ea22641701b7d21995e3c3bb.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 notepad.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2756 msdcsc.exe -
Suspicious use of AdjustPrivilegeToken 46 IoCs
description pid Process Token: SeIncreaseQuotaPrivilege 2844 F.EXE Token: SeSecurityPrivilege 2844 F.EXE Token: SeTakeOwnershipPrivilege 2844 F.EXE Token: SeLoadDriverPrivilege 2844 F.EXE Token: SeSystemProfilePrivilege 2844 F.EXE Token: SeSystemtimePrivilege 2844 F.EXE Token: SeProfSingleProcessPrivilege 2844 F.EXE Token: SeIncBasePriorityPrivilege 2844 F.EXE Token: SeCreatePagefilePrivilege 2844 F.EXE Token: SeBackupPrivilege 2844 F.EXE Token: SeRestorePrivilege 2844 F.EXE Token: SeShutdownPrivilege 2844 F.EXE Token: SeDebugPrivilege 2844 F.EXE Token: SeSystemEnvironmentPrivilege 2844 F.EXE Token: SeChangeNotifyPrivilege 2844 F.EXE Token: SeRemoteShutdownPrivilege 2844 F.EXE Token: SeUndockPrivilege 2844 F.EXE Token: SeManageVolumePrivilege 2844 F.EXE Token: SeImpersonatePrivilege 2844 F.EXE Token: SeCreateGlobalPrivilege 2844 F.EXE Token: 33 2844 F.EXE Token: 34 2844 F.EXE Token: 35 2844 F.EXE Token: SeIncreaseQuotaPrivilege 2756 msdcsc.exe Token: SeSecurityPrivilege 2756 msdcsc.exe Token: SeTakeOwnershipPrivilege 2756 msdcsc.exe Token: SeLoadDriverPrivilege 2756 msdcsc.exe Token: SeSystemProfilePrivilege 2756 msdcsc.exe Token: SeSystemtimePrivilege 2756 msdcsc.exe Token: SeProfSingleProcessPrivilege 2756 msdcsc.exe Token: SeIncBasePriorityPrivilege 2756 msdcsc.exe Token: SeCreatePagefilePrivilege 2756 msdcsc.exe Token: SeBackupPrivilege 2756 msdcsc.exe Token: SeRestorePrivilege 2756 msdcsc.exe Token: SeShutdownPrivilege 2756 msdcsc.exe Token: SeDebugPrivilege 2756 msdcsc.exe Token: SeSystemEnvironmentPrivilege 2756 msdcsc.exe Token: SeChangeNotifyPrivilege 2756 msdcsc.exe Token: SeRemoteShutdownPrivilege 2756 msdcsc.exe Token: SeUndockPrivilege 2756 msdcsc.exe Token: SeManageVolumePrivilege 2756 msdcsc.exe Token: SeImpersonatePrivilege 2756 msdcsc.exe Token: SeCreateGlobalPrivilege 2756 msdcsc.exe Token: 33 2756 msdcsc.exe Token: 34 2756 msdcsc.exe Token: 35 2756 msdcsc.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 2756 msdcsc.exe -
Suspicious use of WriteProcessMemory 64 IoCs
description pid Process procid_target PID 2100 wrote to memory of 2844 2100 501377699da121100bc6e9180ecf9471b85264c2ea22641701b7d21995e3c3bb.exe 30 PID 2100 wrote to memory of 2844 2100 501377699da121100bc6e9180ecf9471b85264c2ea22641701b7d21995e3c3bb.exe 30 PID 2100 wrote to memory of 2844 2100 501377699da121100bc6e9180ecf9471b85264c2ea22641701b7d21995e3c3bb.exe 30 PID 2100 wrote to memory of 2844 2100 501377699da121100bc6e9180ecf9471b85264c2ea22641701b7d21995e3c3bb.exe 30 PID 2844 wrote to memory of 2088 2844 F.EXE 31 PID 2844 wrote to memory of 2088 2844 F.EXE 31 PID 2844 wrote to memory of 2088 2844 F.EXE 31 PID 2844 wrote to memory of 2088 2844 F.EXE 31 PID 2844 wrote to memory of 2536 2844 F.EXE 32 PID 2844 wrote to memory of 2536 2844 F.EXE 32 PID 2844 wrote to memory of 2536 2844 F.EXE 32 PID 2844 wrote to memory of 2536 2844 F.EXE 32 PID 2844 wrote to memory of 2548 2844 F.EXE 34 PID 2844 wrote to memory of 2548 2844 F.EXE 34 PID 2844 wrote to memory of 2548 2844 F.EXE 34 PID 2844 wrote to memory of 2548 2844 F.EXE 34 PID 2844 wrote to memory of 2548 2844 F.EXE 34 PID 2844 wrote to memory of 2548 2844 F.EXE 34 PID 2844 wrote to memory of 2548 2844 F.EXE 34 PID 2844 wrote to memory of 2548 2844 F.EXE 34 PID 2844 wrote to memory of 2548 2844 F.EXE 34 PID 2844 wrote to memory of 2548 2844 F.EXE 34 PID 2844 wrote to memory of 2548 2844 F.EXE 34 PID 2844 wrote to memory of 2548 2844 F.EXE 34 PID 2844 wrote to memory of 2548 2844 F.EXE 34 PID 2844 wrote to memory of 2548 2844 F.EXE 34 PID 2844 wrote to memory of 2548 2844 F.EXE 34 PID 2844 wrote to memory of 2548 2844 F.EXE 34 PID 2844 wrote to memory of 2548 2844 F.EXE 34 PID 2844 wrote to memory of 2548 2844 F.EXE 34 PID 2088 wrote to memory of 2868 2088 cmd.exe 36 PID 2088 wrote to memory of 2868 2088 cmd.exe 36 PID 2088 wrote to memory of 2868 2088 cmd.exe 36 PID 2088 wrote to memory of 2868 2088 cmd.exe 36 PID 2536 wrote to memory of 2872 2536 cmd.exe 37 PID 2536 wrote to memory of 2872 2536 cmd.exe 37 PID 2536 wrote to memory of 2872 2536 cmd.exe 37 PID 2536 wrote to memory of 2872 2536 cmd.exe 37 PID 2844 wrote to memory of 2756 2844 F.EXE 38 PID 2844 wrote to memory of 2756 2844 F.EXE 38 PID 2844 wrote to memory of 2756 2844 F.EXE 38 PID 2844 wrote to memory of 2756 2844 F.EXE 38 PID 2756 wrote to memory of 2636 2756 msdcsc.exe 39 PID 2756 wrote to memory of 2636 2756 msdcsc.exe 39 PID 2756 wrote to memory of 2636 2756 msdcsc.exe 39 PID 2756 wrote to memory of 2636 2756 msdcsc.exe 39 PID 2756 wrote to memory of 2636 2756 msdcsc.exe 39 PID 2756 wrote to memory of 2636 2756 msdcsc.exe 39 PID 2756 wrote to memory of 2636 2756 msdcsc.exe 39 PID 2756 wrote to memory of 2636 2756 msdcsc.exe 39 PID 2756 wrote to memory of 2636 2756 msdcsc.exe 39 PID 2756 wrote to memory of 2636 2756 msdcsc.exe 39 PID 2756 wrote to memory of 2636 2756 msdcsc.exe 39 PID 2756 wrote to memory of 2636 2756 msdcsc.exe 39 PID 2756 wrote to memory of 2636 2756 msdcsc.exe 39 PID 2756 wrote to memory of 2636 2756 msdcsc.exe 39 PID 2756 wrote to memory of 2636 2756 msdcsc.exe 39 PID 2756 wrote to memory of 2636 2756 msdcsc.exe 39 PID 2756 wrote to memory of 2636 2756 msdcsc.exe 39 PID 2756 wrote to memory of 2636 2756 msdcsc.exe 39 PID 2756 wrote to memory of 2636 2756 msdcsc.exe 39 PID 2756 wrote to memory of 2636 2756 msdcsc.exe 39 PID 2756 wrote to memory of 2636 2756 msdcsc.exe 39 PID 2756 wrote to memory of 2636 2756 msdcsc.exe 39 -
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 2872 attrib.exe 2868 attrib.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\501377699da121100bc6e9180ecf9471b85264c2ea22641701b7d21995e3c3bb.exe"C:\Users\Admin\AppData\Local\Temp\501377699da121100bc6e9180ecf9471b85264c2ea22641701b7d21995e3c3bb.exe"1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2100 -
C:\Users\Admin\AppData\Local\Temp\F.EXE"C:\Users\Admin\AppData\Local\Temp\F.EXE"2⤵
- Modifies WinLogon for persistence
- Executes dropped EXE
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2844 -
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:2088 -
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:2868
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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:2536 -
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:2872
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C:\Windows\SysWOW64\notepad.exenotepad3⤵
- System Location Discovery: System Language Discovery
PID:2548
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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:2756 -
C:\Windows\SysWOW64\notepad.exenotepad4⤵
- System Location Discovery: System Language Discovery
PID:2636
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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
Loading Replay Monitor...
Downloads
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Filesize
857KB
MD5c72eec4eb51c62ad455de07d00a77898
SHA10251b8765a12ecb029bae796235e8283f04e96c4
SHA25693435ead1cf9caa1edc3c0018b2a98c05bc0fb44af68331f5562b9aebbae1f80
SHA51231da3b9a762d7a6e512e9cab8d7383e9f855d16e88652b49629ba51ef6f8b93c9032885e89d9ad5af7afad908bce179679883fcea85c86cc15411bae65018322