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Analysis
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max time kernel
120s -
max time network
120s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
02/01/2025, 01:28
Behavioral task
behavioral1
Sample
5e61953db8384267353670cf53fc6f38729b97446fcb08c8be68b73a98c1f14fN.exe
Resource
win7-20240729-en
General
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Target
5e61953db8384267353670cf53fc6f38729b97446fcb08c8be68b73a98c1f14fN.exe
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Size
1.0MB
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MD5
abf0288d96a6ef61c896230b2fedd3c0
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SHA1
8f3b0aa3cbb2e5ab7bbdf64cef7444a623de161f
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SHA256
5e61953db8384267353670cf53fc6f38729b97446fcb08c8be68b73a98c1f14f
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SHA512
94379a060a8df9ab6fc024015f283cc05e62aa4677a3714008e9cdfd2b19cf05fe37f7e4770ce36f7ecbd7dce31a207695feee0b748728f95e5137f6a8c32d3c
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SSDEEP
24576:Rx7UJ81apKbDL+3DdVrBta0ShvVboU4TIn9ohOCMXE0QxbD/dlwc4Z99rpLMO38t:DV1apKbDL+3DdVrBta0ShvVboU4TIn9g
Malware Config
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\\AppData\\Roaming\\Windupdt\\winupdate.exe" 5e61953db8384267353670cf53fc6f38729b97446fcb08c8be68b73a98c1f14fN.exe -
Checks BIOS information in registry 2 TTPs 2 IoCs
BIOS information is often read in order to detect sandboxing environments.
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate winupdate.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate 5e61953db8384267353670cf53fc6f38729b97446fcb08c8be68b73a98c1f14fN.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-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation 5e61953db8384267353670cf53fc6f38729b97446fcb08c8be68b73a98c1f14fN.exe -
Executes dropped EXE 2 IoCs
pid Process 2272 winupdate.exe 4056 winupdate.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\winupdater = "C:\\Users\\Admin\\AppData\\Roaming\\Windupdt\\winupdate.exe" 5e61953db8384267353670cf53fc6f38729b97446fcb08c8be68b73a98c1f14fN.exe -
Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 1388 set thread context of 3468 1388 5e61953db8384267353670cf53fc6f38729b97446fcb08c8be68b73a98c1f14fN.exe 84 PID 2272 set thread context of 4056 2272 winupdate.exe 86 -
resource yara_rule behavioral2/memory/1388-0-0x0000000000400000-0x0000000000512000-memory.dmp upx behavioral2/memory/1388-6-0x0000000000400000-0x0000000000512000-memory.dmp upx behavioral2/files/0x000a000000023b97-14.dat upx behavioral2/memory/2272-79-0x0000000000400000-0x0000000000512000-memory.dmp upx -
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 5e61953db8384267353670cf53fc6f38729b97446fcb08c8be68b73a98c1f14fN.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 5e61953db8384267353670cf53fc6f38729b97446fcb08c8be68b73a98c1f14fN.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language winupdate.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language winupdate.exe -
Checks processor information in registry 2 TTPs 8 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier winupdate.exe Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 5e61953db8384267353670cf53fc6f38729b97446fcb08c8be68b73a98c1f14fN.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString 5e61953db8384267353670cf53fc6f38729b97446fcb08c8be68b73a98c1f14fN.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier 5e61953db8384267353670cf53fc6f38729b97446fcb08c8be68b73a98c1f14fN.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier 5e61953db8384267353670cf53fc6f38729b97446fcb08c8be68b73a98c1f14fN.exe Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 winupdate.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString winupdate.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier winupdate.exe -
Enumerates system info in registry 2 TTPs 2 IoCs
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier 5e61953db8384267353670cf53fc6f38729b97446fcb08c8be68b73a98c1f14fN.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier winupdate.exe -
Modifies registry class 1 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\ 5e61953db8384267353670cf53fc6f38729b97446fcb08c8be68b73a98c1f14fN.exe -
Suspicious use of AdjustPrivilegeToken 48 IoCs
description pid Process Token: SeIncreaseQuotaPrivilege 3468 5e61953db8384267353670cf53fc6f38729b97446fcb08c8be68b73a98c1f14fN.exe Token: SeSecurityPrivilege 3468 5e61953db8384267353670cf53fc6f38729b97446fcb08c8be68b73a98c1f14fN.exe Token: SeTakeOwnershipPrivilege 3468 5e61953db8384267353670cf53fc6f38729b97446fcb08c8be68b73a98c1f14fN.exe Token: SeLoadDriverPrivilege 3468 5e61953db8384267353670cf53fc6f38729b97446fcb08c8be68b73a98c1f14fN.exe Token: SeSystemProfilePrivilege 3468 5e61953db8384267353670cf53fc6f38729b97446fcb08c8be68b73a98c1f14fN.exe Token: SeSystemtimePrivilege 3468 5e61953db8384267353670cf53fc6f38729b97446fcb08c8be68b73a98c1f14fN.exe Token: SeProfSingleProcessPrivilege 3468 5e61953db8384267353670cf53fc6f38729b97446fcb08c8be68b73a98c1f14fN.exe Token: SeIncBasePriorityPrivilege 3468 5e61953db8384267353670cf53fc6f38729b97446fcb08c8be68b73a98c1f14fN.exe Token: SeCreatePagefilePrivilege 3468 5e61953db8384267353670cf53fc6f38729b97446fcb08c8be68b73a98c1f14fN.exe Token: SeBackupPrivilege 3468 5e61953db8384267353670cf53fc6f38729b97446fcb08c8be68b73a98c1f14fN.exe Token: SeRestorePrivilege 3468 5e61953db8384267353670cf53fc6f38729b97446fcb08c8be68b73a98c1f14fN.exe Token: SeShutdownPrivilege 3468 5e61953db8384267353670cf53fc6f38729b97446fcb08c8be68b73a98c1f14fN.exe Token: SeDebugPrivilege 3468 5e61953db8384267353670cf53fc6f38729b97446fcb08c8be68b73a98c1f14fN.exe Token: SeSystemEnvironmentPrivilege 3468 5e61953db8384267353670cf53fc6f38729b97446fcb08c8be68b73a98c1f14fN.exe Token: SeChangeNotifyPrivilege 3468 5e61953db8384267353670cf53fc6f38729b97446fcb08c8be68b73a98c1f14fN.exe Token: SeRemoteShutdownPrivilege 3468 5e61953db8384267353670cf53fc6f38729b97446fcb08c8be68b73a98c1f14fN.exe Token: SeUndockPrivilege 3468 5e61953db8384267353670cf53fc6f38729b97446fcb08c8be68b73a98c1f14fN.exe Token: SeManageVolumePrivilege 3468 5e61953db8384267353670cf53fc6f38729b97446fcb08c8be68b73a98c1f14fN.exe Token: SeImpersonatePrivilege 3468 5e61953db8384267353670cf53fc6f38729b97446fcb08c8be68b73a98c1f14fN.exe Token: SeCreateGlobalPrivilege 3468 5e61953db8384267353670cf53fc6f38729b97446fcb08c8be68b73a98c1f14fN.exe Token: 33 3468 5e61953db8384267353670cf53fc6f38729b97446fcb08c8be68b73a98c1f14fN.exe Token: 34 3468 5e61953db8384267353670cf53fc6f38729b97446fcb08c8be68b73a98c1f14fN.exe Token: 35 3468 5e61953db8384267353670cf53fc6f38729b97446fcb08c8be68b73a98c1f14fN.exe Token: 36 3468 5e61953db8384267353670cf53fc6f38729b97446fcb08c8be68b73a98c1f14fN.exe Token: SeIncreaseQuotaPrivilege 4056 winupdate.exe Token: SeSecurityPrivilege 4056 winupdate.exe Token: SeTakeOwnershipPrivilege 4056 winupdate.exe Token: SeLoadDriverPrivilege 4056 winupdate.exe Token: SeSystemProfilePrivilege 4056 winupdate.exe Token: SeSystemtimePrivilege 4056 winupdate.exe Token: SeProfSingleProcessPrivilege 4056 winupdate.exe Token: SeIncBasePriorityPrivilege 4056 winupdate.exe Token: SeCreatePagefilePrivilege 4056 winupdate.exe Token: SeBackupPrivilege 4056 winupdate.exe Token: SeRestorePrivilege 4056 winupdate.exe Token: SeShutdownPrivilege 4056 winupdate.exe Token: SeDebugPrivilege 4056 winupdate.exe Token: SeSystemEnvironmentPrivilege 4056 winupdate.exe Token: SeChangeNotifyPrivilege 4056 winupdate.exe Token: SeRemoteShutdownPrivilege 4056 winupdate.exe Token: SeUndockPrivilege 4056 winupdate.exe Token: SeManageVolumePrivilege 4056 winupdate.exe Token: SeImpersonatePrivilege 4056 winupdate.exe Token: SeCreateGlobalPrivilege 4056 winupdate.exe Token: 33 4056 winupdate.exe Token: 34 4056 winupdate.exe Token: 35 4056 winupdate.exe Token: 36 4056 winupdate.exe -
Suspicious use of SetWindowsHookEx 3 IoCs
pid Process 1388 5e61953db8384267353670cf53fc6f38729b97446fcb08c8be68b73a98c1f14fN.exe 2272 winupdate.exe 4056 winupdate.exe -
Suspicious use of WriteProcessMemory 31 IoCs
description pid Process procid_target PID 1388 wrote to memory of 3468 1388 5e61953db8384267353670cf53fc6f38729b97446fcb08c8be68b73a98c1f14fN.exe 84 PID 1388 wrote to memory of 3468 1388 5e61953db8384267353670cf53fc6f38729b97446fcb08c8be68b73a98c1f14fN.exe 84 PID 1388 wrote to memory of 3468 1388 5e61953db8384267353670cf53fc6f38729b97446fcb08c8be68b73a98c1f14fN.exe 84 PID 1388 wrote to memory of 3468 1388 5e61953db8384267353670cf53fc6f38729b97446fcb08c8be68b73a98c1f14fN.exe 84 PID 1388 wrote to memory of 3468 1388 5e61953db8384267353670cf53fc6f38729b97446fcb08c8be68b73a98c1f14fN.exe 84 PID 1388 wrote to memory of 3468 1388 5e61953db8384267353670cf53fc6f38729b97446fcb08c8be68b73a98c1f14fN.exe 84 PID 1388 wrote to memory of 3468 1388 5e61953db8384267353670cf53fc6f38729b97446fcb08c8be68b73a98c1f14fN.exe 84 PID 1388 wrote to memory of 3468 1388 5e61953db8384267353670cf53fc6f38729b97446fcb08c8be68b73a98c1f14fN.exe 84 PID 1388 wrote to memory of 3468 1388 5e61953db8384267353670cf53fc6f38729b97446fcb08c8be68b73a98c1f14fN.exe 84 PID 1388 wrote to memory of 3468 1388 5e61953db8384267353670cf53fc6f38729b97446fcb08c8be68b73a98c1f14fN.exe 84 PID 1388 wrote to memory of 3468 1388 5e61953db8384267353670cf53fc6f38729b97446fcb08c8be68b73a98c1f14fN.exe 84 PID 1388 wrote to memory of 3468 1388 5e61953db8384267353670cf53fc6f38729b97446fcb08c8be68b73a98c1f14fN.exe 84 PID 1388 wrote to memory of 3468 1388 5e61953db8384267353670cf53fc6f38729b97446fcb08c8be68b73a98c1f14fN.exe 84 PID 1388 wrote to memory of 3468 1388 5e61953db8384267353670cf53fc6f38729b97446fcb08c8be68b73a98c1f14fN.exe 84 PID 3468 wrote to memory of 2272 3468 5e61953db8384267353670cf53fc6f38729b97446fcb08c8be68b73a98c1f14fN.exe 85 PID 3468 wrote to memory of 2272 3468 5e61953db8384267353670cf53fc6f38729b97446fcb08c8be68b73a98c1f14fN.exe 85 PID 3468 wrote to memory of 2272 3468 5e61953db8384267353670cf53fc6f38729b97446fcb08c8be68b73a98c1f14fN.exe 85 PID 2272 wrote to memory of 4056 2272 winupdate.exe 86 PID 2272 wrote to memory of 4056 2272 winupdate.exe 86 PID 2272 wrote to memory of 4056 2272 winupdate.exe 86 PID 2272 wrote to memory of 4056 2272 winupdate.exe 86 PID 2272 wrote to memory of 4056 2272 winupdate.exe 86 PID 2272 wrote to memory of 4056 2272 winupdate.exe 86 PID 2272 wrote to memory of 4056 2272 winupdate.exe 86 PID 2272 wrote to memory of 4056 2272 winupdate.exe 86 PID 2272 wrote to memory of 4056 2272 winupdate.exe 86 PID 2272 wrote to memory of 4056 2272 winupdate.exe 86 PID 2272 wrote to memory of 4056 2272 winupdate.exe 86 PID 2272 wrote to memory of 4056 2272 winupdate.exe 86 PID 2272 wrote to memory of 4056 2272 winupdate.exe 86 PID 2272 wrote to memory of 4056 2272 winupdate.exe 86
Processes
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C:\Users\Admin\AppData\Local\Temp\5e61953db8384267353670cf53fc6f38729b97446fcb08c8be68b73a98c1f14fN.exe"C:\Users\Admin\AppData\Local\Temp\5e61953db8384267353670cf53fc6f38729b97446fcb08c8be68b73a98c1f14fN.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1388 -
C:\Users\Admin\AppData\Local\Temp\5e61953db8384267353670cf53fc6f38729b97446fcb08c8be68b73a98c1f14fN.exe"C:\Users\Admin\AppData\Local\Temp\5e61953db8384267353670cf53fc6f38729b97446fcb08c8be68b73a98c1f14fN.exe"2⤵
- Modifies WinLogon for persistence
- Checks BIOS information in registry
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Checks processor information in registry
- Enumerates system info in registry
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3468 -
C:\Users\Admin\AppData\Roaming\Windupdt\winupdate.exe"C:\Users\Admin\AppData\Roaming\Windupdt\winupdate.exe"3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2272 -
C:\Users\Admin\AppData\Roaming\Windupdt\winupdate.exe"C:\Users\Admin\AppData\Roaming\Windupdt\winupdate.exe"4⤵
- Checks BIOS information in registry
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:4056
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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
1Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
1.0MB
MD5abf0288d96a6ef61c896230b2fedd3c0
SHA18f3b0aa3cbb2e5ab7bbdf64cef7444a623de161f
SHA2565e61953db8384267353670cf53fc6f38729b97446fcb08c8be68b73a98c1f14f
SHA51294379a060a8df9ab6fc024015f283cc05e62aa4677a3714008e9cdfd2b19cf05fe37f7e4770ce36f7ecbd7dce31a207695feee0b748728f95e5137f6a8c32d3c