Analysis
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max time kernel
120s -
max time network
117s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
16-12-2024 10:39
Behavioral task
behavioral1
Sample
996beea9299ded8bca31425c26e3cc07930852c4a0b73ca362ff9e2200d651acN.exe
Resource
win7-20241023-en
General
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Target
996beea9299ded8bca31425c26e3cc07930852c4a0b73ca362ff9e2200d651acN.exe
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Size
658KB
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MD5
7e32a97cd6071306602c84c223bee650
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SHA1
3d8533bf5fdbd5830382d3e331215d70c7798946
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SHA256
996beea9299ded8bca31425c26e3cc07930852c4a0b73ca362ff9e2200d651ac
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SHA512
01871935591a371394e2b394b2638aac51bf6248200aa97c28dcc04b22ac6d107b1f097a6a6412b3b7b21bce29b1c62a839c481bf94e0f9732178e683afc40a7
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SSDEEP
12288:+9HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9Ek5C/hI:KZ1xuVVjfFoynPaVBUR8f+kN10EB6
Malware Config
Extracted
darkcomet
Guest1
adobens.hopto.org:1604
DC_MUTEX-GDVHDWW
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InstallPath
MSDCS\msdcs12.exe
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gencode
HAlbHiVRqz20
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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
msdcsa
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:\\Windows\\system32\\MSDCS\\msdcs12.exe" 996beea9299ded8bca31425c26e3cc07930852c4a0b73ca362ff9e2200d651acN.exe -
Sets file to hidden 1 TTPs 2 IoCs
Modifies file attributes to stop it showing in Explorer etc.
pid Process 3692 attrib.exe 4592 attrib.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-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation 996beea9299ded8bca31425c26e3cc07930852c4a0b73ca362ff9e2200d651acN.exe -
Deletes itself 1 IoCs
pid Process 4576 notepad.exe -
Executes dropped EXE 1 IoCs
pid Process 1360 msdcs12.exe -
Adds Run key to start application 2 TTPs 3 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\msdcsa = "C:\\Windows\\system32\\MSDCS\\msdcs12.exe" msdcs12.exe Set value (str) \REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\msdcsa = "C:\\Windows\\system32\\MSDCS\\msdcs12.exe" iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\msdcsa = "C:\\Windows\\system32\\MSDCS\\msdcs12.exe" 996beea9299ded8bca31425c26e3cc07930852c4a0b73ca362ff9e2200d651acN.exe -
Drops file in System32 directory 3 IoCs
description ioc Process File created C:\Windows\SysWOW64\MSDCS\msdcs12.exe 996beea9299ded8bca31425c26e3cc07930852c4a0b73ca362ff9e2200d651acN.exe File opened for modification C:\Windows\SysWOW64\MSDCS\msdcs12.exe 996beea9299ded8bca31425c26e3cc07930852c4a0b73ca362ff9e2200d651acN.exe File opened for modification C:\Windows\SysWOW64\MSDCS\ 996beea9299ded8bca31425c26e3cc07930852c4a0b73ca362ff9e2200d651acN.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1360 set thread context of 1088 1360 msdcs12.exe 90 -
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 996beea9299ded8bca31425c26e3cc07930852c4a0b73ca362ff9e2200d651acN.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 attrib.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language msdcs12.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language iexplore.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 notepad.exe -
Modifies registry class 1 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\ 996beea9299ded8bca31425c26e3cc07930852c4a0b73ca362ff9e2200d651acN.exe -
Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeIncreaseQuotaPrivilege 3988 996beea9299ded8bca31425c26e3cc07930852c4a0b73ca362ff9e2200d651acN.exe Token: SeSecurityPrivilege 3988 996beea9299ded8bca31425c26e3cc07930852c4a0b73ca362ff9e2200d651acN.exe Token: SeTakeOwnershipPrivilege 3988 996beea9299ded8bca31425c26e3cc07930852c4a0b73ca362ff9e2200d651acN.exe Token: SeLoadDriverPrivilege 3988 996beea9299ded8bca31425c26e3cc07930852c4a0b73ca362ff9e2200d651acN.exe Token: SeSystemProfilePrivilege 3988 996beea9299ded8bca31425c26e3cc07930852c4a0b73ca362ff9e2200d651acN.exe Token: SeSystemtimePrivilege 3988 996beea9299ded8bca31425c26e3cc07930852c4a0b73ca362ff9e2200d651acN.exe Token: SeProfSingleProcessPrivilege 3988 996beea9299ded8bca31425c26e3cc07930852c4a0b73ca362ff9e2200d651acN.exe Token: SeIncBasePriorityPrivilege 3988 996beea9299ded8bca31425c26e3cc07930852c4a0b73ca362ff9e2200d651acN.exe Token: SeCreatePagefilePrivilege 3988 996beea9299ded8bca31425c26e3cc07930852c4a0b73ca362ff9e2200d651acN.exe Token: SeBackupPrivilege 3988 996beea9299ded8bca31425c26e3cc07930852c4a0b73ca362ff9e2200d651acN.exe Token: SeRestorePrivilege 3988 996beea9299ded8bca31425c26e3cc07930852c4a0b73ca362ff9e2200d651acN.exe Token: SeShutdownPrivilege 3988 996beea9299ded8bca31425c26e3cc07930852c4a0b73ca362ff9e2200d651acN.exe Token: SeDebugPrivilege 3988 996beea9299ded8bca31425c26e3cc07930852c4a0b73ca362ff9e2200d651acN.exe Token: SeSystemEnvironmentPrivilege 3988 996beea9299ded8bca31425c26e3cc07930852c4a0b73ca362ff9e2200d651acN.exe Token: SeChangeNotifyPrivilege 3988 996beea9299ded8bca31425c26e3cc07930852c4a0b73ca362ff9e2200d651acN.exe Token: SeRemoteShutdownPrivilege 3988 996beea9299ded8bca31425c26e3cc07930852c4a0b73ca362ff9e2200d651acN.exe Token: SeUndockPrivilege 3988 996beea9299ded8bca31425c26e3cc07930852c4a0b73ca362ff9e2200d651acN.exe Token: SeManageVolumePrivilege 3988 996beea9299ded8bca31425c26e3cc07930852c4a0b73ca362ff9e2200d651acN.exe Token: SeImpersonatePrivilege 3988 996beea9299ded8bca31425c26e3cc07930852c4a0b73ca362ff9e2200d651acN.exe Token: SeCreateGlobalPrivilege 3988 996beea9299ded8bca31425c26e3cc07930852c4a0b73ca362ff9e2200d651acN.exe Token: 33 3988 996beea9299ded8bca31425c26e3cc07930852c4a0b73ca362ff9e2200d651acN.exe Token: 34 3988 996beea9299ded8bca31425c26e3cc07930852c4a0b73ca362ff9e2200d651acN.exe Token: 35 3988 996beea9299ded8bca31425c26e3cc07930852c4a0b73ca362ff9e2200d651acN.exe Token: 36 3988 996beea9299ded8bca31425c26e3cc07930852c4a0b73ca362ff9e2200d651acN.exe Token: SeIncreaseQuotaPrivilege 1360 msdcs12.exe Token: SeSecurityPrivilege 1360 msdcs12.exe Token: SeTakeOwnershipPrivilege 1360 msdcs12.exe Token: SeLoadDriverPrivilege 1360 msdcs12.exe Token: SeSystemProfilePrivilege 1360 msdcs12.exe Token: SeSystemtimePrivilege 1360 msdcs12.exe Token: SeProfSingleProcessPrivilege 1360 msdcs12.exe Token: SeIncBasePriorityPrivilege 1360 msdcs12.exe Token: SeCreatePagefilePrivilege 1360 msdcs12.exe Token: SeBackupPrivilege 1360 msdcs12.exe Token: SeRestorePrivilege 1360 msdcs12.exe Token: SeShutdownPrivilege 1360 msdcs12.exe Token: SeDebugPrivilege 1360 msdcs12.exe Token: SeSystemEnvironmentPrivilege 1360 msdcs12.exe Token: SeChangeNotifyPrivilege 1360 msdcs12.exe Token: SeRemoteShutdownPrivilege 1360 msdcs12.exe Token: SeUndockPrivilege 1360 msdcs12.exe Token: SeManageVolumePrivilege 1360 msdcs12.exe Token: SeImpersonatePrivilege 1360 msdcs12.exe Token: SeCreateGlobalPrivilege 1360 msdcs12.exe Token: 33 1360 msdcs12.exe Token: 34 1360 msdcs12.exe Token: 35 1360 msdcs12.exe Token: 36 1360 msdcs12.exe Token: SeIncreaseQuotaPrivilege 1088 iexplore.exe Token: SeSecurityPrivilege 1088 iexplore.exe Token: SeTakeOwnershipPrivilege 1088 iexplore.exe Token: SeLoadDriverPrivilege 1088 iexplore.exe Token: SeSystemProfilePrivilege 1088 iexplore.exe Token: SeSystemtimePrivilege 1088 iexplore.exe Token: SeProfSingleProcessPrivilege 1088 iexplore.exe Token: SeIncBasePriorityPrivilege 1088 iexplore.exe Token: SeCreatePagefilePrivilege 1088 iexplore.exe Token: SeBackupPrivilege 1088 iexplore.exe Token: SeRestorePrivilege 1088 iexplore.exe Token: SeShutdownPrivilege 1088 iexplore.exe Token: SeDebugPrivilege 1088 iexplore.exe Token: SeSystemEnvironmentPrivilege 1088 iexplore.exe Token: SeChangeNotifyPrivilege 1088 iexplore.exe Token: SeRemoteShutdownPrivilege 1088 iexplore.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 1088 iexplore.exe -
Suspicious use of WriteProcessMemory 59 IoCs
description pid Process procid_target PID 3988 wrote to memory of 3900 3988 996beea9299ded8bca31425c26e3cc07930852c4a0b73ca362ff9e2200d651acN.exe 82 PID 3988 wrote to memory of 3900 3988 996beea9299ded8bca31425c26e3cc07930852c4a0b73ca362ff9e2200d651acN.exe 82 PID 3988 wrote to memory of 3900 3988 996beea9299ded8bca31425c26e3cc07930852c4a0b73ca362ff9e2200d651acN.exe 82 PID 3988 wrote to memory of 1148 3988 996beea9299ded8bca31425c26e3cc07930852c4a0b73ca362ff9e2200d651acN.exe 83 PID 3988 wrote to memory of 1148 3988 996beea9299ded8bca31425c26e3cc07930852c4a0b73ca362ff9e2200d651acN.exe 83 PID 3988 wrote to memory of 1148 3988 996beea9299ded8bca31425c26e3cc07930852c4a0b73ca362ff9e2200d651acN.exe 83 PID 3988 wrote to memory of 4576 3988 996beea9299ded8bca31425c26e3cc07930852c4a0b73ca362ff9e2200d651acN.exe 84 PID 3988 wrote to memory of 4576 3988 996beea9299ded8bca31425c26e3cc07930852c4a0b73ca362ff9e2200d651acN.exe 84 PID 3988 wrote to memory of 4576 3988 996beea9299ded8bca31425c26e3cc07930852c4a0b73ca362ff9e2200d651acN.exe 84 PID 3988 wrote to memory of 4576 3988 996beea9299ded8bca31425c26e3cc07930852c4a0b73ca362ff9e2200d651acN.exe 84 PID 3988 wrote to memory of 4576 3988 996beea9299ded8bca31425c26e3cc07930852c4a0b73ca362ff9e2200d651acN.exe 84 PID 3988 wrote to memory of 4576 3988 996beea9299ded8bca31425c26e3cc07930852c4a0b73ca362ff9e2200d651acN.exe 84 PID 3988 wrote to memory of 4576 3988 996beea9299ded8bca31425c26e3cc07930852c4a0b73ca362ff9e2200d651acN.exe 84 PID 3988 wrote to memory of 4576 3988 996beea9299ded8bca31425c26e3cc07930852c4a0b73ca362ff9e2200d651acN.exe 84 PID 3988 wrote to memory of 4576 3988 996beea9299ded8bca31425c26e3cc07930852c4a0b73ca362ff9e2200d651acN.exe 84 PID 3988 wrote to memory of 4576 3988 996beea9299ded8bca31425c26e3cc07930852c4a0b73ca362ff9e2200d651acN.exe 84 PID 3988 wrote to memory of 4576 3988 996beea9299ded8bca31425c26e3cc07930852c4a0b73ca362ff9e2200d651acN.exe 84 PID 3988 wrote to memory of 4576 3988 996beea9299ded8bca31425c26e3cc07930852c4a0b73ca362ff9e2200d651acN.exe 84 PID 3988 wrote to memory of 4576 3988 996beea9299ded8bca31425c26e3cc07930852c4a0b73ca362ff9e2200d651acN.exe 84 PID 3988 wrote to memory of 4576 3988 996beea9299ded8bca31425c26e3cc07930852c4a0b73ca362ff9e2200d651acN.exe 84 PID 3988 wrote to memory of 4576 3988 996beea9299ded8bca31425c26e3cc07930852c4a0b73ca362ff9e2200d651acN.exe 84 PID 3988 wrote to memory of 4576 3988 996beea9299ded8bca31425c26e3cc07930852c4a0b73ca362ff9e2200d651acN.exe 84 PID 3988 wrote to memory of 4576 3988 996beea9299ded8bca31425c26e3cc07930852c4a0b73ca362ff9e2200d651acN.exe 84 PID 1148 wrote to memory of 4592 1148 cmd.exe 87 PID 1148 wrote to memory of 4592 1148 cmd.exe 87 PID 1148 wrote to memory of 4592 1148 cmd.exe 87 PID 3900 wrote to memory of 3692 3900 cmd.exe 88 PID 3900 wrote to memory of 3692 3900 cmd.exe 88 PID 3900 wrote to memory of 3692 3900 cmd.exe 88 PID 3988 wrote to memory of 1360 3988 996beea9299ded8bca31425c26e3cc07930852c4a0b73ca362ff9e2200d651acN.exe 89 PID 3988 wrote to memory of 1360 3988 996beea9299ded8bca31425c26e3cc07930852c4a0b73ca362ff9e2200d651acN.exe 89 PID 3988 wrote to memory of 1360 3988 996beea9299ded8bca31425c26e3cc07930852c4a0b73ca362ff9e2200d651acN.exe 89 PID 1360 wrote to memory of 1088 1360 msdcs12.exe 90 PID 1360 wrote to memory of 1088 1360 msdcs12.exe 90 PID 1360 wrote to memory of 1088 1360 msdcs12.exe 90 PID 1360 wrote to memory of 1088 1360 msdcs12.exe 90 PID 1360 wrote to memory of 1088 1360 msdcs12.exe 90 PID 1088 wrote to memory of 4784 1088 iexplore.exe 91 PID 1088 wrote to memory of 4784 1088 iexplore.exe 91 PID 1088 wrote to memory of 4784 1088 iexplore.exe 91 PID 1088 wrote to memory of 4784 1088 iexplore.exe 91 PID 1088 wrote to memory of 4784 1088 iexplore.exe 91 PID 1088 wrote to memory of 4784 1088 iexplore.exe 91 PID 1088 wrote to memory of 4784 1088 iexplore.exe 91 PID 1088 wrote to memory of 4784 1088 iexplore.exe 91 PID 1088 wrote to memory of 4784 1088 iexplore.exe 91 PID 1088 wrote to memory of 4784 1088 iexplore.exe 91 PID 1088 wrote to memory of 4784 1088 iexplore.exe 91 PID 1088 wrote to memory of 4784 1088 iexplore.exe 91 PID 1088 wrote to memory of 4784 1088 iexplore.exe 91 PID 1088 wrote to memory of 4784 1088 iexplore.exe 91 PID 1088 wrote to memory of 4784 1088 iexplore.exe 91 PID 1088 wrote to memory of 4784 1088 iexplore.exe 91 PID 1088 wrote to memory of 4784 1088 iexplore.exe 91 PID 1088 wrote to memory of 4784 1088 iexplore.exe 91 PID 1088 wrote to memory of 4784 1088 iexplore.exe 91 PID 1088 wrote to memory of 4784 1088 iexplore.exe 91 PID 1088 wrote to memory of 4784 1088 iexplore.exe 91 PID 1088 wrote to memory of 4784 1088 iexplore.exe 91 -
Views/modifies file attributes 1 TTPs 2 IoCs
pid Process 4592 attrib.exe 3692 attrib.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\996beea9299ded8bca31425c26e3cc07930852c4a0b73ca362ff9e2200d651acN.exe"C:\Users\Admin\AppData\Local\Temp\996beea9299ded8bca31425c26e3cc07930852c4a0b73ca362ff9e2200d651acN.exe"1⤵
- Modifies WinLogon for persistence
- Checks computer location settings
- Adds Run key to start application
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3988 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\996beea9299ded8bca31425c26e3cc07930852c4a0b73ca362ff9e2200d651acN.exe" +s +h2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3900 -
C:\Windows\SysWOW64\attrib.exeattrib "C:\Users\Admin\AppData\Local\Temp\996beea9299ded8bca31425c26e3cc07930852c4a0b73ca362ff9e2200d651acN.exe" +s +h3⤵
- Sets file to hidden
- System Location Discovery: System Language Discovery
- Views/modifies file attributes
PID:3692
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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:1148 -
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:4592
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C:\Windows\SysWOW64\notepad.exenotepad2⤵
- Deletes itself
- System Location Discovery: System Language Discovery
PID:4576
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C:\Windows\SysWOW64\MSDCS\msdcs12.exe"C:\Windows\system32\MSDCS\msdcs12.exe"2⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1360 -
C:\Program Files (x86)\Internet Explorer\iexplore.exe"C:\Program Files (x86)\Internet Explorer\iexplore.exe"3⤵
- 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:1088 -
C:\Windows\SysWOW64\notepad.exenotepad4⤵
- System Location Discovery: System Language Discovery
PID:4784
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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
1Defense Evasion
Hide Artifacts
2Hidden Files and Directories
2Modify Registry
2Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
658KB
MD57e32a97cd6071306602c84c223bee650
SHA13d8533bf5fdbd5830382d3e331215d70c7798946
SHA256996beea9299ded8bca31425c26e3cc07930852c4a0b73ca362ff9e2200d651ac
SHA51201871935591a371394e2b394b2638aac51bf6248200aa97c28dcc04b22ac6d107b1f097a6a6412b3b7b21bce29b1c62a839c481bf94e0f9732178e683afc40a7