Analysis
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max time kernel
150s -
max time network
146s -
platform
windows10-2004_x64 -
resource
win10v2004-20250217-en -
resource tags
arch:x64arch:x86image:win10v2004-20250217-enlocale:en-usos:windows10-2004-x64system -
submitted
28/02/2025, 03:20
Static task
static1
Behavioral task
behavioral1
Sample
JaffaCakes118_31412729528ff5bc80c5582bbe784628.exe
Resource
win7-20241010-en
Behavioral task
behavioral2
Sample
JaffaCakes118_31412729528ff5bc80c5582bbe784628.exe
Resource
win10v2004-20250217-en
General
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Target
JaffaCakes118_31412729528ff5bc80c5582bbe784628.exe
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Size
315KB
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MD5
31412729528ff5bc80c5582bbe784628
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SHA1
26bc7dc6a6d763a96925f41f34d78ca6157ee4fc
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SHA256
1e1fe04cd20a5b8b47be1188c98ce2979b4c56257967f3bff3218a194b9d5efb
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SHA512
3628cc231e19dfaa66466d17b02db07967cad08068a57e002c4bd070490232d2450848ac0d2fa900553f108abc8ef0691c11b2109b5034ba21014790e072847b
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SSDEEP
6144:LSTv34CFfifD2gVKVTQQ249HZ52KTh9XKOCgLJacj5/AZtRsO:LEPXgr8VMQDT52WXKq9fj5/AZjv
Malware Config
Extracted
darkcomet
Guest16
fugitif.no-ip.org:2702
DC_MUTEX-GJKJZWL
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InstallPath
driver\winupdate.exe
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gencode
EQ=TzK#norn1
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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
winupdater
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:\\driver\\winupdate.exe" JaffaCakes118_31412729528ff5bc80c5582bbe784628.exe -
Modifies firewall policy service 3 TTPs 3 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile winupdate.exe Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\EnableFirewall = "1" winupdate.exe Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DisableNotifications = "1" winupdate.exe -
Windows security bypass 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1" winupdate.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 JaffaCakes118_31412729528ff5bc80c5582bbe784628.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-1-5-21-1161330783-2912525651-1278508834-1000\Control Panel\International\Geo\Nation JaffaCakes118_31412729528ff5bc80c5582bbe784628.exe -
Executes dropped EXE 3 IoCs
pid Process 3144 winupdate.exe 2544 winupdate.exe 4076 winupdate.exe -
Windows security modification 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1" winupdate.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1161330783-2912525651-1278508834-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\winupdater = "C:\\driver\\winupdate.exe" JaffaCakes118_31412729528ff5bc80c5582bbe784628.exe -
Drops file in System32 directory 1 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\explorer.exe explorer.exe -
Suspicious use of SetThreadContext 5 IoCs
description pid Process procid_target PID 216 set thread context of 1892 216 JaffaCakes118_31412729528ff5bc80c5582bbe784628.exe 92 PID 1892 set thread context of 4624 1892 JaffaCakes118_31412729528ff5bc80c5582bbe784628.exe 93 PID 4624 set thread context of 1376 4624 JaffaCakes118_31412729528ff5bc80c5582bbe784628.exe 96 PID 3144 set thread context of 2544 3144 winupdate.exe 98 PID 2544 set thread context of 4076 2544 winupdate.exe 99 -
resource yara_rule behavioral2/memory/4624-9-0x0000000000400000-0x00000000004B5000-memory.dmp upx behavioral2/memory/4624-11-0x0000000000400000-0x00000000004B5000-memory.dmp upx behavioral2/memory/4624-14-0x0000000000400000-0x00000000004B5000-memory.dmp upx behavioral2/memory/4624-16-0x0000000000400000-0x00000000004B5000-memory.dmp upx behavioral2/memory/4624-15-0x0000000000400000-0x00000000004B5000-memory.dmp upx behavioral2/memory/4624-17-0x0000000000400000-0x00000000004B5000-memory.dmp upx behavioral2/memory/4624-18-0x0000000000400000-0x00000000004B5000-memory.dmp upx behavioral2/memory/4624-83-0x0000000000400000-0x00000000004B5000-memory.dmp upx behavioral2/memory/4076-102-0x0000000000400000-0x00000000004B5000-memory.dmp upx behavioral2/memory/4076-101-0x0000000000400000-0x00000000004B5000-memory.dmp upx behavioral2/memory/4076-100-0x0000000000400000-0x00000000004B5000-memory.dmp upx behavioral2/memory/4076-103-0x0000000000400000-0x00000000004B5000-memory.dmp upx behavioral2/memory/4076-107-0x0000000000400000-0x00000000004B5000-memory.dmp upx behavioral2/memory/4076-106-0x0000000000400000-0x00000000004B5000-memory.dmp upx behavioral2/memory/4076-105-0x0000000000400000-0x00000000004B5000-memory.dmp upx behavioral2/memory/4076-104-0x0000000000400000-0x00000000004B5000-memory.dmp upx behavioral2/memory/4076-111-0x0000000000400000-0x00000000004B5000-memory.dmp upx behavioral2/memory/4076-110-0x0000000000400000-0x00000000004B5000-memory.dmp upx behavioral2/memory/4076-112-0x0000000000400000-0x00000000004B5000-memory.dmp upx behavioral2/memory/4076-113-0x0000000000400000-0x00000000004B5000-memory.dmp upx behavioral2/memory/4076-114-0x0000000000400000-0x00000000004B5000-memory.dmp upx behavioral2/memory/4076-115-0x0000000000400000-0x00000000004B5000-memory.dmp upx behavioral2/memory/4076-116-0x0000000000400000-0x00000000004B5000-memory.dmp upx behavioral2/memory/4076-117-0x0000000000400000-0x00000000004B5000-memory.dmp upx behavioral2/memory/4076-118-0x0000000000400000-0x00000000004B5000-memory.dmp upx behavioral2/memory/4076-119-0x0000000000400000-0x00000000004B5000-memory.dmp upx behavioral2/memory/4076-120-0x0000000000400000-0x00000000004B5000-memory.dmp upx behavioral2/memory/4076-121-0x0000000000400000-0x00000000004B5000-memory.dmp upx behavioral2/memory/4076-122-0x0000000000400000-0x00000000004B5000-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 7 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 JaffaCakes118_31412729528ff5bc80c5582bbe784628.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language JaffaCakes118_31412729528ff5bc80c5582bbe784628.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language JaffaCakes118_31412729528ff5bc80c5582bbe784628.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language explorer.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language winupdate.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 opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 JaffaCakes118_31412729528ff5bc80c5582bbe784628.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString JaffaCakes118_31412729528ff5bc80c5582bbe784628.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier winupdate.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier winupdate.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier JaffaCakes118_31412729528ff5bc80c5582bbe784628.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier JaffaCakes118_31412729528ff5bc80c5582bbe784628.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 -
Enumerates system info in registry 2 TTPs 2 IoCs
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier JaffaCakes118_31412729528ff5bc80c5582bbe784628.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\ JaffaCakes118_31412729528ff5bc80c5582bbe784628.exe -
Suspicious use of AdjustPrivilegeToken 48 IoCs
description pid Process Token: SeIncreaseQuotaPrivilege 4624 JaffaCakes118_31412729528ff5bc80c5582bbe784628.exe Token: SeSecurityPrivilege 4624 JaffaCakes118_31412729528ff5bc80c5582bbe784628.exe Token: SeTakeOwnershipPrivilege 4624 JaffaCakes118_31412729528ff5bc80c5582bbe784628.exe Token: SeLoadDriverPrivilege 4624 JaffaCakes118_31412729528ff5bc80c5582bbe784628.exe Token: SeSystemProfilePrivilege 4624 JaffaCakes118_31412729528ff5bc80c5582bbe784628.exe Token: SeSystemtimePrivilege 4624 JaffaCakes118_31412729528ff5bc80c5582bbe784628.exe Token: SeProfSingleProcessPrivilege 4624 JaffaCakes118_31412729528ff5bc80c5582bbe784628.exe Token: SeIncBasePriorityPrivilege 4624 JaffaCakes118_31412729528ff5bc80c5582bbe784628.exe Token: SeCreatePagefilePrivilege 4624 JaffaCakes118_31412729528ff5bc80c5582bbe784628.exe Token: SeBackupPrivilege 4624 JaffaCakes118_31412729528ff5bc80c5582bbe784628.exe Token: SeRestorePrivilege 4624 JaffaCakes118_31412729528ff5bc80c5582bbe784628.exe Token: SeShutdownPrivilege 4624 JaffaCakes118_31412729528ff5bc80c5582bbe784628.exe Token: SeDebugPrivilege 4624 JaffaCakes118_31412729528ff5bc80c5582bbe784628.exe Token: SeSystemEnvironmentPrivilege 4624 JaffaCakes118_31412729528ff5bc80c5582bbe784628.exe Token: SeChangeNotifyPrivilege 4624 JaffaCakes118_31412729528ff5bc80c5582bbe784628.exe Token: SeRemoteShutdownPrivilege 4624 JaffaCakes118_31412729528ff5bc80c5582bbe784628.exe Token: SeUndockPrivilege 4624 JaffaCakes118_31412729528ff5bc80c5582bbe784628.exe Token: SeManageVolumePrivilege 4624 JaffaCakes118_31412729528ff5bc80c5582bbe784628.exe Token: SeImpersonatePrivilege 4624 JaffaCakes118_31412729528ff5bc80c5582bbe784628.exe Token: SeCreateGlobalPrivilege 4624 JaffaCakes118_31412729528ff5bc80c5582bbe784628.exe Token: 33 4624 JaffaCakes118_31412729528ff5bc80c5582bbe784628.exe Token: 34 4624 JaffaCakes118_31412729528ff5bc80c5582bbe784628.exe Token: 35 4624 JaffaCakes118_31412729528ff5bc80c5582bbe784628.exe Token: 36 4624 JaffaCakes118_31412729528ff5bc80c5582bbe784628.exe Token: SeIncreaseQuotaPrivilege 4076 winupdate.exe Token: SeSecurityPrivilege 4076 winupdate.exe Token: SeTakeOwnershipPrivilege 4076 winupdate.exe Token: SeLoadDriverPrivilege 4076 winupdate.exe Token: SeSystemProfilePrivilege 4076 winupdate.exe Token: SeSystemtimePrivilege 4076 winupdate.exe Token: SeProfSingleProcessPrivilege 4076 winupdate.exe Token: SeIncBasePriorityPrivilege 4076 winupdate.exe Token: SeCreatePagefilePrivilege 4076 winupdate.exe Token: SeBackupPrivilege 4076 winupdate.exe Token: SeRestorePrivilege 4076 winupdate.exe Token: SeShutdownPrivilege 4076 winupdate.exe Token: SeDebugPrivilege 4076 winupdate.exe Token: SeSystemEnvironmentPrivilege 4076 winupdate.exe Token: SeChangeNotifyPrivilege 4076 winupdate.exe Token: SeRemoteShutdownPrivilege 4076 winupdate.exe Token: SeUndockPrivilege 4076 winupdate.exe Token: SeManageVolumePrivilege 4076 winupdate.exe Token: SeImpersonatePrivilege 4076 winupdate.exe Token: SeCreateGlobalPrivilege 4076 winupdate.exe Token: 33 4076 winupdate.exe Token: 34 4076 winupdate.exe Token: 35 4076 winupdate.exe Token: 36 4076 winupdate.exe -
Suspicious use of SetWindowsHookEx 6 IoCs
pid Process 216 JaffaCakes118_31412729528ff5bc80c5582bbe784628.exe 1892 JaffaCakes118_31412729528ff5bc80c5582bbe784628.exe 1376 explorer.exe 3144 winupdate.exe 2544 winupdate.exe 4076 winupdate.exe -
Suspicious use of WriteProcessMemory 40 IoCs
description pid Process procid_target PID 216 wrote to memory of 1892 216 JaffaCakes118_31412729528ff5bc80c5582bbe784628.exe 92 PID 216 wrote to memory of 1892 216 JaffaCakes118_31412729528ff5bc80c5582bbe784628.exe 92 PID 216 wrote to memory of 1892 216 JaffaCakes118_31412729528ff5bc80c5582bbe784628.exe 92 PID 216 wrote to memory of 1892 216 JaffaCakes118_31412729528ff5bc80c5582bbe784628.exe 92 PID 216 wrote to memory of 1892 216 JaffaCakes118_31412729528ff5bc80c5582bbe784628.exe 92 PID 216 wrote to memory of 1892 216 JaffaCakes118_31412729528ff5bc80c5582bbe784628.exe 92 PID 216 wrote to memory of 1892 216 JaffaCakes118_31412729528ff5bc80c5582bbe784628.exe 92 PID 216 wrote to memory of 1892 216 JaffaCakes118_31412729528ff5bc80c5582bbe784628.exe 92 PID 1892 wrote to memory of 4624 1892 JaffaCakes118_31412729528ff5bc80c5582bbe784628.exe 93 PID 1892 wrote to memory of 4624 1892 JaffaCakes118_31412729528ff5bc80c5582bbe784628.exe 93 PID 1892 wrote to memory of 4624 1892 JaffaCakes118_31412729528ff5bc80c5582bbe784628.exe 93 PID 1892 wrote to memory of 4624 1892 JaffaCakes118_31412729528ff5bc80c5582bbe784628.exe 93 PID 1892 wrote to memory of 4624 1892 JaffaCakes118_31412729528ff5bc80c5582bbe784628.exe 93 PID 1892 wrote to memory of 4624 1892 JaffaCakes118_31412729528ff5bc80c5582bbe784628.exe 93 PID 1892 wrote to memory of 4624 1892 JaffaCakes118_31412729528ff5bc80c5582bbe784628.exe 93 PID 1892 wrote to memory of 4624 1892 JaffaCakes118_31412729528ff5bc80c5582bbe784628.exe 93 PID 4624 wrote to memory of 1376 4624 JaffaCakes118_31412729528ff5bc80c5582bbe784628.exe 96 PID 4624 wrote to memory of 1376 4624 JaffaCakes118_31412729528ff5bc80c5582bbe784628.exe 96 PID 4624 wrote to memory of 1376 4624 JaffaCakes118_31412729528ff5bc80c5582bbe784628.exe 96 PID 4624 wrote to memory of 1376 4624 JaffaCakes118_31412729528ff5bc80c5582bbe784628.exe 96 PID 4624 wrote to memory of 1376 4624 JaffaCakes118_31412729528ff5bc80c5582bbe784628.exe 96 PID 4624 wrote to memory of 3144 4624 JaffaCakes118_31412729528ff5bc80c5582bbe784628.exe 97 PID 4624 wrote to memory of 3144 4624 JaffaCakes118_31412729528ff5bc80c5582bbe784628.exe 97 PID 4624 wrote to memory of 3144 4624 JaffaCakes118_31412729528ff5bc80c5582bbe784628.exe 97 PID 3144 wrote to memory of 2544 3144 winupdate.exe 98 PID 3144 wrote to memory of 2544 3144 winupdate.exe 98 PID 3144 wrote to memory of 2544 3144 winupdate.exe 98 PID 3144 wrote to memory of 2544 3144 winupdate.exe 98 PID 3144 wrote to memory of 2544 3144 winupdate.exe 98 PID 3144 wrote to memory of 2544 3144 winupdate.exe 98 PID 3144 wrote to memory of 2544 3144 winupdate.exe 98 PID 3144 wrote to memory of 2544 3144 winupdate.exe 98 PID 2544 wrote to memory of 4076 2544 winupdate.exe 99 PID 2544 wrote to memory of 4076 2544 winupdate.exe 99 PID 2544 wrote to memory of 4076 2544 winupdate.exe 99 PID 2544 wrote to memory of 4076 2544 winupdate.exe 99 PID 2544 wrote to memory of 4076 2544 winupdate.exe 99 PID 2544 wrote to memory of 4076 2544 winupdate.exe 99 PID 2544 wrote to memory of 4076 2544 winupdate.exe 99 PID 2544 wrote to memory of 4076 2544 winupdate.exe 99
Processes
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C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_31412729528ff5bc80c5582bbe784628.exe"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_31412729528ff5bc80c5582bbe784628.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:216 -
C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_31412729528ff5bc80c5582bbe784628.exe2⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1892 -
C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_31412729528ff5bc80c5582bbe784628.exe3⤵
- Modifies WinLogon for persistence
- Checks BIOS information in registry
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of SetThreadContext
- 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:4624 -
C:\Windows\SysWOW64\explorer.exe"C:\Windows\SysWOW64\explorer.exe"4⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
PID:1376
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C:\driver\winupdate.exe"C:\driver\winupdate.exe"4⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3144 -
C:\driver\winupdate.exe5⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2544 -
C:\driver\winupdate.exe6⤵
- Modifies firewall policy service
- Windows security bypass
- Checks BIOS information in registry
- Executes dropped EXE
- Windows security modification
- 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:4076
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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
1Windows Service
1Privilege Escalation
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Create or Modify System Process
1Windows Service
1Defense Evasion
Impair Defenses
3Disable or Modify System Firewall
1Disable or Modify Tools
2Modify Registry
5Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
315KB
MD531412729528ff5bc80c5582bbe784628
SHA126bc7dc6a6d763a96925f41f34d78ca6157ee4fc
SHA2561e1fe04cd20a5b8b47be1188c98ce2979b4c56257967f3bff3218a194b9d5efb
SHA5123628cc231e19dfaa66466d17b02db07967cad08068a57e002c4bd070490232d2450848ac0d2fa900553f108abc8ef0691c11b2109b5034ba21014790e072847b