Analysis
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max time kernel
204s -
max time network
301s -
platform
windows11-21h2_x64 -
resource
win11-20240730-en -
resource tags
arch:x64arch:x86image:win11-20240730-enlocale:en-usos:windows11-21h2-x64system -
submitted
01-08-2024 17:11
Behavioral task
behavioral1
Sample
test.exe
Resource
win7-20240729-en
Behavioral task
behavioral2
Sample
test.exe
Resource
win10-20240404-en
General
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Target
test.exe
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Size
658KB
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MD5
ec24d90ed3c9befd6c389eef8a7b30d0
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SHA1
fd5ced24ad422b5f3d63b90b99384b7b7dbb4792
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SHA256
655eea77b66bbaa7012c3f84d6d6e81c4348146ea0736db0b329a2a9c1a9ada6
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SHA512
0652aabb75f7cf146d58e22a2dc0d6c8db0ef360776edf52282dad7389c3efb908c39e14f2d4ece4480e481f5cc19123fac5479f0e3e587df9471ec0214892dd
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SSDEEP
12288:e9HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9Ek5C/hq:qZ1xuVVjfFoynPaVBUR8f+kN10EBk
Malware Config
Extracted
darkcomet
Guest16
insurance-helmet.gl.at.ply.gg:31388
DC_MUTEX-LP7CXKP
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InstallPath
MSDCSC\msdcsc.exe
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gencode
AmrqVD7MwH6g
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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:
test.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" test.exe -
Modifies firewall policy service 3 TTPs 6 IoCs
Processes:
msdcsc.exeiexplore.exedescription 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 Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile iexplore.exe Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\EnableFirewall = "0" iexplore.exe Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DisableNotifications = "0" iexplore.exe -
Modifies security service 2 TTPs 2 IoCs
Processes:
msdcsc.exeiexplore.exedescription ioc process Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\wscsvc\Start = "4" msdcsc.exe Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\wscsvc\Start = "4" iexplore.exe -
Processes:
msdcsc.exeiexplore.exedescription 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 Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1" iexplore.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1" iexplore.exe -
Sets file to hidden 1 TTPs 2 IoCs
Modifies file attributes to stop it showing in Explorer etc.
Processes:
attrib.exeattrib.exepid process 4436 attrib.exe 4376 attrib.exe -
Executes dropped EXE 1 IoCs
Processes:
msdcsc.exepid process 1448 msdcsc.exe -
Processes:
msdcsc.exedescription 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 1 IoCs
Processes:
test.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-2629259545-4196337482-2684730723-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe" test.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
msdcsc.exedescription pid process target process PID 1448 set thread context of 4712 1448 msdcsc.exe iexplore.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 7 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
Processes:
attrib.exeattrib.exemsdcsc.exeiexplore.exetest.execmd.execmd.exedescription ioc process 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 iexplore.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language test.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
Processes:
test.exedescription ioc process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\ test.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
Processes:
iexplore.exepid process 4712 iexplore.exe -
Suspicious use of AdjustPrivilegeToken 64 IoCs
Processes:
test.exemsdcsc.exeiexplore.exedescription pid process Token: SeIncreaseQuotaPrivilege 1564 test.exe Token: SeSecurityPrivilege 1564 test.exe Token: SeTakeOwnershipPrivilege 1564 test.exe Token: SeLoadDriverPrivilege 1564 test.exe Token: SeSystemProfilePrivilege 1564 test.exe Token: SeSystemtimePrivilege 1564 test.exe Token: SeProfSingleProcessPrivilege 1564 test.exe Token: SeIncBasePriorityPrivilege 1564 test.exe Token: SeCreatePagefilePrivilege 1564 test.exe Token: SeBackupPrivilege 1564 test.exe Token: SeRestorePrivilege 1564 test.exe Token: SeShutdownPrivilege 1564 test.exe Token: SeDebugPrivilege 1564 test.exe Token: SeSystemEnvironmentPrivilege 1564 test.exe Token: SeChangeNotifyPrivilege 1564 test.exe Token: SeRemoteShutdownPrivilege 1564 test.exe Token: SeUndockPrivilege 1564 test.exe Token: SeManageVolumePrivilege 1564 test.exe Token: SeImpersonatePrivilege 1564 test.exe Token: SeCreateGlobalPrivilege 1564 test.exe Token: 33 1564 test.exe Token: 34 1564 test.exe Token: 35 1564 test.exe Token: 36 1564 test.exe Token: SeIncreaseQuotaPrivilege 1448 msdcsc.exe Token: SeSecurityPrivilege 1448 msdcsc.exe Token: SeTakeOwnershipPrivilege 1448 msdcsc.exe Token: SeLoadDriverPrivilege 1448 msdcsc.exe Token: SeSystemProfilePrivilege 1448 msdcsc.exe Token: SeSystemtimePrivilege 1448 msdcsc.exe Token: SeProfSingleProcessPrivilege 1448 msdcsc.exe Token: SeIncBasePriorityPrivilege 1448 msdcsc.exe Token: SeCreatePagefilePrivilege 1448 msdcsc.exe Token: SeBackupPrivilege 1448 msdcsc.exe Token: SeRestorePrivilege 1448 msdcsc.exe Token: SeShutdownPrivilege 1448 msdcsc.exe Token: SeDebugPrivilege 1448 msdcsc.exe Token: SeSystemEnvironmentPrivilege 1448 msdcsc.exe Token: SeChangeNotifyPrivilege 1448 msdcsc.exe Token: SeRemoteShutdownPrivilege 1448 msdcsc.exe Token: SeUndockPrivilege 1448 msdcsc.exe Token: SeManageVolumePrivilege 1448 msdcsc.exe Token: SeImpersonatePrivilege 1448 msdcsc.exe Token: SeCreateGlobalPrivilege 1448 msdcsc.exe Token: 33 1448 msdcsc.exe Token: 34 1448 msdcsc.exe Token: 35 1448 msdcsc.exe Token: 36 1448 msdcsc.exe Token: SeIncreaseQuotaPrivilege 4712 iexplore.exe Token: SeSecurityPrivilege 4712 iexplore.exe Token: SeTakeOwnershipPrivilege 4712 iexplore.exe Token: SeLoadDriverPrivilege 4712 iexplore.exe Token: SeSystemProfilePrivilege 4712 iexplore.exe Token: SeSystemtimePrivilege 4712 iexplore.exe Token: SeProfSingleProcessPrivilege 4712 iexplore.exe Token: SeIncBasePriorityPrivilege 4712 iexplore.exe Token: SeCreatePagefilePrivilege 4712 iexplore.exe Token: SeBackupPrivilege 4712 iexplore.exe Token: SeRestorePrivilege 4712 iexplore.exe Token: SeShutdownPrivilege 4712 iexplore.exe Token: SeDebugPrivilege 4712 iexplore.exe Token: SeSystemEnvironmentPrivilege 4712 iexplore.exe Token: SeChangeNotifyPrivilege 4712 iexplore.exe Token: SeRemoteShutdownPrivilege 4712 iexplore.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
iexplore.exepid process 4712 iexplore.exe -
Suspicious use of WriteProcessMemory 20 IoCs
Processes:
test.execmd.execmd.exemsdcsc.exedescription pid process target process PID 1564 wrote to memory of 1356 1564 test.exe cmd.exe PID 1564 wrote to memory of 1356 1564 test.exe cmd.exe PID 1564 wrote to memory of 1356 1564 test.exe cmd.exe PID 1564 wrote to memory of 2712 1564 test.exe cmd.exe PID 1564 wrote to memory of 2712 1564 test.exe cmd.exe PID 1564 wrote to memory of 2712 1564 test.exe cmd.exe PID 1356 wrote to memory of 4436 1356 cmd.exe attrib.exe PID 1356 wrote to memory of 4436 1356 cmd.exe attrib.exe PID 1356 wrote to memory of 4436 1356 cmd.exe attrib.exe PID 2712 wrote to memory of 4376 2712 cmd.exe attrib.exe PID 2712 wrote to memory of 4376 2712 cmd.exe attrib.exe PID 2712 wrote to memory of 4376 2712 cmd.exe attrib.exe PID 1564 wrote to memory of 1448 1564 test.exe msdcsc.exe PID 1564 wrote to memory of 1448 1564 test.exe msdcsc.exe PID 1564 wrote to memory of 1448 1564 test.exe msdcsc.exe PID 1448 wrote to memory of 4712 1448 msdcsc.exe iexplore.exe PID 1448 wrote to memory of 4712 1448 msdcsc.exe iexplore.exe PID 1448 wrote to memory of 4712 1448 msdcsc.exe iexplore.exe PID 1448 wrote to memory of 4712 1448 msdcsc.exe iexplore.exe PID 1448 wrote to memory of 4712 1448 msdcsc.exe iexplore.exe -
System policy modification 1 TTPs 3 IoCs
Processes:
msdcsc.exedescription ioc process 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 Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\CurrentVersion msdcsc.exe -
Views/modifies file attributes 1 TTPs 2 IoCs
Processes:
attrib.exeattrib.exepid process 4436 attrib.exe 4376 attrib.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\test.exe"C:\Users\Admin\AppData\Local\Temp\test.exe"1⤵
- Modifies WinLogon for persistence
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1564 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\test.exe" +s +h2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1356 -
C:\Windows\SysWOW64\attrib.exeattrib "C:\Users\Admin\AppData\Local\Temp\test.exe" +s +h3⤵
- Sets file to hidden
- System Location Discovery: System Language Discovery
- Views/modifies file attributes
PID:4436 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp" +s +h2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2712 -
C:\Windows\SysWOW64\attrib.exeattrib "C:\Users\Admin\AppData\Local\Temp" +s +h3⤵
- Sets file to hidden
- System Location Discovery: System Language Discovery
- Views/modifies file attributes
PID:4376 -
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
- Executes dropped EXE
- Windows security modification
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- System policy modification
PID:1448 -
C:\Program Files (x86)\Internet Explorer\iexplore.exe"C:\Program Files (x86)\Internet Explorer\iexplore.exe"3⤵
- Modifies firewall policy service
- Modifies security service
- Windows security bypass
- System Location Discovery: System Language Discovery
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:4712
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
658KB
MD5ec24d90ed3c9befd6c389eef8a7b30d0
SHA1fd5ced24ad422b5f3d63b90b99384b7b7dbb4792
SHA256655eea77b66bbaa7012c3f84d6d6e81c4348146ea0736db0b329a2a9c1a9ada6
SHA5120652aabb75f7cf146d58e22a2dc0d6c8db0ef360776edf52282dad7389c3efb908c39e14f2d4ece4480e481f5cc19123fac5479f0e3e587df9471ec0214892dd