Analysis
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max time kernel
40s -
max time network
40s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
11/10/2024, 17:51
Behavioral task
behavioral1
Sample
msdcsc.exe
Resource
win7-20240903-en
windows7-x64
17 signatures
150 seconds
Behavioral task
behavioral2
Sample
msdcsc.exe
Resource
win10v2004-20241007-en
windows10-2004-x64
18 signatures
150 seconds
General
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Target
msdcsc.exe
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Size
683KB
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MD5
22a5fe0f5665eee23c3d4678168d0440
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SHA1
3d9fe530983720e5afb376789c2aa2c18a29b0cf
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SHA256
0ea00c9097c8bf6678871789f84387b58f0a0336ac82fc84b4d705976618e4d9
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SHA512
b8f4c6632a7ad8d6bdd410fd4940f05ec52cd473c468b215fb2f5425bc61198fbe3686cc3f4f13134eaf6e6c17ca8df305185d9999c157e65c9f92799638a57b
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SSDEEP
12288:x9HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9Ek5C/heE:rZ1xuVVjfFoynPaVBUR8f+kN10EBd
Malware Config
Extracted
Family
darkcomet
Botnet
ÖÜÜÜÍíÉ ÌÏíÏÉ
C2
ayha.no-ip.biz:1604
Mutex
DC_MUTEX-VSKSUHQ
Attributes
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InstallPath
MSDCSC\msdcsc.exe
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gencode
MHgCcRtjTlzh
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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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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" msdcsc.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 -
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-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1" msdcsc.exe -
Deletes itself 1 IoCs
pid Process 2768 notepad.exe -
Executes dropped EXE 1 IoCs
pid Process 2708 msdcsc.exe -
Loads dropped DLL 2 IoCs
pid Process 2196 msdcsc.exe 2196 msdcsc.exe -
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-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe" msdcsc.exe Set value (str) \REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\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 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 msdcsc.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language notepad.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language msdcsc.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language notepad.exe -
Runs regedit.exe 1 IoCs
pid Process 1480 regedit.exe -
Suspicious use of AdjustPrivilegeToken 46 IoCs
description pid Process Token: SeIncreaseQuotaPrivilege 2196 msdcsc.exe Token: SeSecurityPrivilege 2196 msdcsc.exe Token: SeTakeOwnershipPrivilege 2196 msdcsc.exe Token: SeLoadDriverPrivilege 2196 msdcsc.exe Token: SeSystemProfilePrivilege 2196 msdcsc.exe Token: SeSystemtimePrivilege 2196 msdcsc.exe Token: SeProfSingleProcessPrivilege 2196 msdcsc.exe Token: SeIncBasePriorityPrivilege 2196 msdcsc.exe Token: SeCreatePagefilePrivilege 2196 msdcsc.exe Token: SeBackupPrivilege 2196 msdcsc.exe Token: SeRestorePrivilege 2196 msdcsc.exe Token: SeShutdownPrivilege 2196 msdcsc.exe Token: SeDebugPrivilege 2196 msdcsc.exe Token: SeSystemEnvironmentPrivilege 2196 msdcsc.exe Token: SeChangeNotifyPrivilege 2196 msdcsc.exe Token: SeRemoteShutdownPrivilege 2196 msdcsc.exe Token: SeUndockPrivilege 2196 msdcsc.exe Token: SeManageVolumePrivilege 2196 msdcsc.exe Token: SeImpersonatePrivilege 2196 msdcsc.exe Token: SeCreateGlobalPrivilege 2196 msdcsc.exe Token: 33 2196 msdcsc.exe Token: 34 2196 msdcsc.exe Token: 35 2196 msdcsc.exe Token: SeIncreaseQuotaPrivilege 2708 msdcsc.exe Token: SeSecurityPrivilege 2708 msdcsc.exe Token: SeTakeOwnershipPrivilege 2708 msdcsc.exe Token: SeLoadDriverPrivilege 2708 msdcsc.exe Token: SeSystemProfilePrivilege 2708 msdcsc.exe Token: SeSystemtimePrivilege 2708 msdcsc.exe Token: SeProfSingleProcessPrivilege 2708 msdcsc.exe Token: SeIncBasePriorityPrivilege 2708 msdcsc.exe Token: SeCreatePagefilePrivilege 2708 msdcsc.exe Token: SeBackupPrivilege 2708 msdcsc.exe Token: SeRestorePrivilege 2708 msdcsc.exe Token: SeShutdownPrivilege 2708 msdcsc.exe Token: SeDebugPrivilege 2708 msdcsc.exe Token: SeSystemEnvironmentPrivilege 2708 msdcsc.exe Token: SeChangeNotifyPrivilege 2708 msdcsc.exe Token: SeRemoteShutdownPrivilege 2708 msdcsc.exe Token: SeUndockPrivilege 2708 msdcsc.exe Token: SeManageVolumePrivilege 2708 msdcsc.exe Token: SeImpersonatePrivilege 2708 msdcsc.exe Token: SeCreateGlobalPrivilege 2708 msdcsc.exe Token: 33 2708 msdcsc.exe Token: 34 2708 msdcsc.exe Token: 35 2708 msdcsc.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 2708 msdcsc.exe -
Suspicious use of WriteProcessMemory 45 IoCs
description pid Process procid_target PID 2196 wrote to memory of 2768 2196 msdcsc.exe 30 PID 2196 wrote to memory of 2768 2196 msdcsc.exe 30 PID 2196 wrote to memory of 2768 2196 msdcsc.exe 30 PID 2196 wrote to memory of 2768 2196 msdcsc.exe 30 PID 2196 wrote to memory of 2768 2196 msdcsc.exe 30 PID 2196 wrote to memory of 2768 2196 msdcsc.exe 30 PID 2196 wrote to memory of 2768 2196 msdcsc.exe 30 PID 2196 wrote to memory of 2768 2196 msdcsc.exe 30 PID 2196 wrote to memory of 2768 2196 msdcsc.exe 30 PID 2196 wrote to memory of 2768 2196 msdcsc.exe 30 PID 2196 wrote to memory of 2768 2196 msdcsc.exe 30 PID 2196 wrote to memory of 2768 2196 msdcsc.exe 30 PID 2196 wrote to memory of 2768 2196 msdcsc.exe 30 PID 2196 wrote to memory of 2768 2196 msdcsc.exe 30 PID 2196 wrote to memory of 2768 2196 msdcsc.exe 30 PID 2196 wrote to memory of 2768 2196 msdcsc.exe 30 PID 2196 wrote to memory of 2768 2196 msdcsc.exe 30 PID 2196 wrote to memory of 2768 2196 msdcsc.exe 30 PID 2196 wrote to memory of 2708 2196 msdcsc.exe 31 PID 2196 wrote to memory of 2708 2196 msdcsc.exe 31 PID 2196 wrote to memory of 2708 2196 msdcsc.exe 31 PID 2196 wrote to memory of 2708 2196 msdcsc.exe 31 PID 2708 wrote to memory of 2712 2708 msdcsc.exe 32 PID 2708 wrote to memory of 2712 2708 msdcsc.exe 32 PID 2708 wrote to memory of 2712 2708 msdcsc.exe 32 PID 2708 wrote to memory of 2712 2708 msdcsc.exe 32 PID 2708 wrote to memory of 2712 2708 msdcsc.exe 32 PID 2708 wrote to memory of 2712 2708 msdcsc.exe 32 PID 2708 wrote to memory of 2712 2708 msdcsc.exe 32 PID 2708 wrote to memory of 2712 2708 msdcsc.exe 32 PID 2708 wrote to memory of 2712 2708 msdcsc.exe 32 PID 2708 wrote to memory of 2712 2708 msdcsc.exe 32 PID 2708 wrote to memory of 2712 2708 msdcsc.exe 32 PID 2708 wrote to memory of 2712 2708 msdcsc.exe 32 PID 2708 wrote to memory of 2712 2708 msdcsc.exe 32 PID 2708 wrote to memory of 2712 2708 msdcsc.exe 32 PID 2708 wrote to memory of 2712 2708 msdcsc.exe 32 PID 2708 wrote to memory of 2712 2708 msdcsc.exe 32 PID 2708 wrote to memory of 2712 2708 msdcsc.exe 32 PID 2708 wrote to memory of 2712 2708 msdcsc.exe 32 PID 2708 wrote to memory of 2712 2708 msdcsc.exe 32 PID 2708 wrote to memory of 2712 2708 msdcsc.exe 32 PID 2708 wrote to memory of 2712 2708 msdcsc.exe 32 PID 2708 wrote to memory of 2712 2708 msdcsc.exe 32 PID 2708 wrote to memory of 2712 2708 msdcsc.exe 32
Processes
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C:\Users\Admin\AppData\Local\Temp\msdcsc.exe"C:\Users\Admin\AppData\Local\Temp\msdcsc.exe"1⤵
- Modifies WinLogon for persistence
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2196 -
C:\Windows\SysWOW64\notepad.exenotepad2⤵
- Deletes itself
- System Location Discovery: System Language Discovery
PID:2768
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C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"2⤵
- 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 use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2708 -
C:\Windows\SysWOW64\notepad.exenotepad3⤵
- System Location Discovery: System Language Discovery
PID:2712
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C:\Windows\regedit.exe"C:\Windows\regedit.exe"1⤵
- Runs regedit.exe
PID:1480
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
Impair Defenses
3Disable or Modify System Firewall
1Disable or Modify Tools
2Modify Registry
6Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
683KB
MD522a5fe0f5665eee23c3d4678168d0440
SHA13d9fe530983720e5afb376789c2aa2c18a29b0cf
SHA2560ea00c9097c8bf6678871789f84387b58f0a0336ac82fc84b4d705976618e4d9
SHA512b8f4c6632a7ad8d6bdd410fd4940f05ec52cd473c468b215fb2f5425bc61198fbe3686cc3f4f13134eaf6e6c17ca8df305185d9999c157e65c9f92799638a57b