Analysis
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max time kernel
147s -
max time network
125s -
platform
windows7_x64 -
resource
win7-20241010-en -
resource tags
arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system -
submitted
22/11/2024, 19:22
Static task
static1
Behavioral task
behavioral1
Sample
05cd97b8817ccb13f8e7f24fd678298c21f21e5409816e9dc4ac144bf96c3b5a.exe
Resource
win7-20241010-en
Behavioral task
behavioral2
Sample
05cd97b8817ccb13f8e7f24fd678298c21f21e5409816e9dc4ac144bf96c3b5a.exe
Resource
win10v2004-20241007-en
General
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Target
05cd97b8817ccb13f8e7f24fd678298c21f21e5409816e9dc4ac144bf96c3b5a.exe
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Size
1.6MB
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MD5
71acfda42393b53d4967bc1014c3f498
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SHA1
e1ee52e20724185d63e3529437533231c51c87cc
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SHA256
05cd97b8817ccb13f8e7f24fd678298c21f21e5409816e9dc4ac144bf96c3b5a
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SHA512
907c394c442ed9d6390bb39f34927974803e31f4c9b31734a8bbb85bb90d26d1c0b9dd3c21cd826d7b04e500cf1a7de7c100a18fdc88134432f17730172d3766
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SSDEEP
12288:WB5a3hizhz/o456rn9lkQ8rxQslgBKR1jl9RL9BVnDXLmoIY7Tm+jZFluq9wd4Ue:WkB4tpHlgGjlLHlFoq2d5e
Malware Config
Signatures
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Modifies firewall policy service 3 TTPs 8 IoCs
description ioc Process Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DoNotAllowExceptions = "0" reg.exe Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List reg.exe Set value (str) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\C:\Users\Admin\AppData\Roaming\Windows Updater.exe = "C:\\Users\\Admin\\AppData\\Roaming\\Windows Updater.exe:*:Enabled:Windows Messanger" reg.exe Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile reg.exe Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DoNotAllowExceptions = "0" reg.exe Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List reg.exe Set value (str) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\C:\Users\Admin\AppData\Roaming\Windows Update\winupdt.exe = "C:\\Users\\Admin\\AppData\\Roaming\\Windows Update\\winupdt.exe:*:Enabled:Windows Messanger" reg.exe Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile reg.exe -
Executes dropped EXE 2 IoCs
pid Process 2916 winupdt.exe 2692 winupdt.exe -
Loads dropped DLL 5 IoCs
pid Process 2856 05cd97b8817ccb13f8e7f24fd678298c21f21e5409816e9dc4ac144bf96c3b5a.exe 2856 05cd97b8817ccb13f8e7f24fd678298c21f21e5409816e9dc4ac144bf96c3b5a.exe 2856 05cd97b8817ccb13f8e7f24fd678298c21f21e5409816e9dc4ac144bf96c3b5a.exe 2856 05cd97b8817ccb13f8e7f24fd678298c21f21e5409816e9dc4ac144bf96c3b5a.exe 2856 05cd97b8817ccb13f8e7f24fd678298c21f21e5409816e9dc4ac144bf96c3b5a.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows\CurrentVersion\Run\Window Updates = "C:\\Users\\Admin\\AppData\\Roaming\\Windows Update\\winupdt.exe" reg.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2916 set thread context of 2692 2916 winupdt.exe 34 -
resource yara_rule behavioral1/memory/2692-47-0x0000000000400000-0x000000000045C000-memory.dmp upx behavioral1/memory/2692-50-0x0000000000400000-0x000000000045C000-memory.dmp upx behavioral1/memory/2692-52-0x0000000000400000-0x000000000045C000-memory.dmp upx behavioral1/memory/2692-58-0x0000000000400000-0x000000000045C000-memory.dmp upx behavioral1/memory/2692-59-0x0000000000400000-0x000000000045C000-memory.dmp upx behavioral1/memory/2692-60-0x0000000000400000-0x000000000045C000-memory.dmp upx behavioral1/memory/2692-61-0x0000000000400000-0x000000000045C000-memory.dmp upx behavioral1/memory/2692-63-0x0000000000400000-0x000000000045C000-memory.dmp upx behavioral1/memory/2692-64-0x0000000000400000-0x000000000045C000-memory.dmp upx behavioral1/memory/2692-67-0x0000000000400000-0x000000000045C000-memory.dmp upx behavioral1/memory/2692-68-0x0000000000400000-0x000000000045C000-memory.dmp upx behavioral1/memory/2692-69-0x0000000000400000-0x000000000045C000-memory.dmp upx behavioral1/memory/2692-71-0x0000000000400000-0x000000000045C000-memory.dmp upx behavioral1/memory/2692-73-0x0000000000400000-0x000000000045C000-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 13 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 05cd97b8817ccb13f8e7f24fd678298c21f21e5409816e9dc4ac144bf96c3b5a.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language winupdt.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language reg.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language reg.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language reg.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language winupdt.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language reg.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language reg.exe -
Modifies registry key 1 TTPs 4 IoCs
pid Process 2620 reg.exe 2608 reg.exe 396 reg.exe 2656 reg.exe -
Suspicious use of AdjustPrivilegeToken 35 IoCs
description pid Process Token: 1 2692 winupdt.exe Token: SeCreateTokenPrivilege 2692 winupdt.exe Token: SeAssignPrimaryTokenPrivilege 2692 winupdt.exe Token: SeLockMemoryPrivilege 2692 winupdt.exe Token: SeIncreaseQuotaPrivilege 2692 winupdt.exe Token: SeMachineAccountPrivilege 2692 winupdt.exe Token: SeTcbPrivilege 2692 winupdt.exe Token: SeSecurityPrivilege 2692 winupdt.exe Token: SeTakeOwnershipPrivilege 2692 winupdt.exe Token: SeLoadDriverPrivilege 2692 winupdt.exe Token: SeSystemProfilePrivilege 2692 winupdt.exe Token: SeSystemtimePrivilege 2692 winupdt.exe Token: SeProfSingleProcessPrivilege 2692 winupdt.exe Token: SeIncBasePriorityPrivilege 2692 winupdt.exe Token: SeCreatePagefilePrivilege 2692 winupdt.exe Token: SeCreatePermanentPrivilege 2692 winupdt.exe Token: SeBackupPrivilege 2692 winupdt.exe Token: SeRestorePrivilege 2692 winupdt.exe Token: SeShutdownPrivilege 2692 winupdt.exe Token: SeDebugPrivilege 2692 winupdt.exe Token: SeAuditPrivilege 2692 winupdt.exe Token: SeSystemEnvironmentPrivilege 2692 winupdt.exe Token: SeChangeNotifyPrivilege 2692 winupdt.exe Token: SeRemoteShutdownPrivilege 2692 winupdt.exe Token: SeUndockPrivilege 2692 winupdt.exe Token: SeSyncAgentPrivilege 2692 winupdt.exe Token: SeEnableDelegationPrivilege 2692 winupdt.exe Token: SeManageVolumePrivilege 2692 winupdt.exe Token: SeImpersonatePrivilege 2692 winupdt.exe Token: SeCreateGlobalPrivilege 2692 winupdt.exe Token: 31 2692 winupdt.exe Token: 32 2692 winupdt.exe Token: 33 2692 winupdt.exe Token: 34 2692 winupdt.exe Token: 35 2692 winupdt.exe -
Suspicious use of SetWindowsHookEx 5 IoCs
pid Process 2856 05cd97b8817ccb13f8e7f24fd678298c21f21e5409816e9dc4ac144bf96c3b5a.exe 2916 winupdt.exe 2692 winupdt.exe 2692 winupdt.exe 2692 winupdt.exe -
Suspicious use of WriteProcessMemory 53 IoCs
description pid Process procid_target PID 2856 wrote to memory of 2924 2856 05cd97b8817ccb13f8e7f24fd678298c21f21e5409816e9dc4ac144bf96c3b5a.exe 30 PID 2856 wrote to memory of 2924 2856 05cd97b8817ccb13f8e7f24fd678298c21f21e5409816e9dc4ac144bf96c3b5a.exe 30 PID 2856 wrote to memory of 2924 2856 05cd97b8817ccb13f8e7f24fd678298c21f21e5409816e9dc4ac144bf96c3b5a.exe 30 PID 2856 wrote to memory of 2924 2856 05cd97b8817ccb13f8e7f24fd678298c21f21e5409816e9dc4ac144bf96c3b5a.exe 30 PID 2924 wrote to memory of 3048 2924 cmd.exe 32 PID 2924 wrote to memory of 3048 2924 cmd.exe 32 PID 2924 wrote to memory of 3048 2924 cmd.exe 32 PID 2924 wrote to memory of 3048 2924 cmd.exe 32 PID 2856 wrote to memory of 2916 2856 05cd97b8817ccb13f8e7f24fd678298c21f21e5409816e9dc4ac144bf96c3b5a.exe 33 PID 2856 wrote to memory of 2916 2856 05cd97b8817ccb13f8e7f24fd678298c21f21e5409816e9dc4ac144bf96c3b5a.exe 33 PID 2856 wrote to memory of 2916 2856 05cd97b8817ccb13f8e7f24fd678298c21f21e5409816e9dc4ac144bf96c3b5a.exe 33 PID 2856 wrote to memory of 2916 2856 05cd97b8817ccb13f8e7f24fd678298c21f21e5409816e9dc4ac144bf96c3b5a.exe 33 PID 2916 wrote to memory of 2692 2916 winupdt.exe 34 PID 2916 wrote to memory of 2692 2916 winupdt.exe 34 PID 2916 wrote to memory of 2692 2916 winupdt.exe 34 PID 2916 wrote to memory of 2692 2916 winupdt.exe 34 PID 2916 wrote to memory of 2692 2916 winupdt.exe 34 PID 2916 wrote to memory of 2692 2916 winupdt.exe 34 PID 2916 wrote to memory of 2692 2916 winupdt.exe 34 PID 2916 wrote to memory of 2692 2916 winupdt.exe 34 PID 2916 wrote to memory of 2692 2916 winupdt.exe 34 PID 2692 wrote to memory of 2132 2692 winupdt.exe 35 PID 2692 wrote to memory of 2132 2692 winupdt.exe 35 PID 2692 wrote to memory of 2132 2692 winupdt.exe 35 PID 2692 wrote to memory of 2132 2692 winupdt.exe 35 PID 2692 wrote to memory of 2064 2692 winupdt.exe 36 PID 2692 wrote to memory of 2064 2692 winupdt.exe 36 PID 2692 wrote to memory of 2064 2692 winupdt.exe 36 PID 2692 wrote to memory of 2064 2692 winupdt.exe 36 PID 2692 wrote to memory of 2960 2692 winupdt.exe 37 PID 2692 wrote to memory of 2960 2692 winupdt.exe 37 PID 2692 wrote to memory of 2960 2692 winupdt.exe 37 PID 2692 wrote to memory of 2960 2692 winupdt.exe 37 PID 2692 wrote to memory of 1456 2692 winupdt.exe 39 PID 2692 wrote to memory of 1456 2692 winupdt.exe 39 PID 2692 wrote to memory of 1456 2692 winupdt.exe 39 PID 2692 wrote to memory of 1456 2692 winupdt.exe 39 PID 2064 wrote to memory of 2656 2064 cmd.exe 40 PID 2064 wrote to memory of 2656 2064 cmd.exe 40 PID 2064 wrote to memory of 2656 2064 cmd.exe 40 PID 2064 wrote to memory of 2656 2064 cmd.exe 40 PID 2960 wrote to memory of 396 2960 cmd.exe 44 PID 2960 wrote to memory of 396 2960 cmd.exe 44 PID 2960 wrote to memory of 396 2960 cmd.exe 44 PID 2960 wrote to memory of 396 2960 cmd.exe 44 PID 1456 wrote to memory of 2620 1456 cmd.exe 45 PID 1456 wrote to memory of 2620 1456 cmd.exe 45 PID 1456 wrote to memory of 2620 1456 cmd.exe 45 PID 1456 wrote to memory of 2620 1456 cmd.exe 45 PID 2132 wrote to memory of 2608 2132 cmd.exe 46 PID 2132 wrote to memory of 2608 2132 cmd.exe 46 PID 2132 wrote to memory of 2608 2132 cmd.exe 46 PID 2132 wrote to memory of 2608 2132 cmd.exe 46
Processes
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C:\Users\Admin\AppData\Local\Temp\05cd97b8817ccb13f8e7f24fd678298c21f21e5409816e9dc4ac144bf96c3b5a.exe"C:\Users\Admin\AppData\Local\Temp\05cd97b8817ccb13f8e7f24fd678298c21f21e5409816e9dc4ac144bf96c3b5a.exe"1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2856 -
C:\Windows\SysWOW64\cmd.execmd /c ""C:\Users\Admin\AppData\Local\Temp\LjVFy.bat" "2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2924 -
C:\Windows\SysWOW64\reg.exeREG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v "Window Updates" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\Windows Update\winupdt.exe" /f3⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
PID:3048
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C:\Users\Admin\AppData\Roaming\Windows Update\winupdt.exe"C:\Users\Admin\AppData\Roaming\Windows Update\winupdt.exe"2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2916 -
C:\Users\Admin\AppData\Roaming\Windows Update\winupdt.exe"C:\Users\Admin\AppData\Roaming\Windows Update\winupdt.exe"3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2692 -
C:\Windows\SysWOW64\cmd.execmd /c REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile /v "DoNotAllowExceptions" /t REG_DWORD /d "0" /f4⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2132 -
C:\Windows\SysWOW64\reg.exeREG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile /v "DoNotAllowExceptions" /t REG_DWORD /d "0" /f5⤵
- Modifies firewall policy service
- System Location Discovery: System Language Discovery
- Modifies registry key
PID:2608
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C:\Windows\SysWOW64\cmd.execmd /c REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "C:\Users\Admin\AppData\Roaming\Windows Update\winupdt.exe" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\Windows Update\winupdt.exe:*:Enabled:Windows Messanger" /f4⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2064 -
C:\Windows\SysWOW64\reg.exeREG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "C:\Users\Admin\AppData\Roaming\Windows Update\winupdt.exe" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\Windows Update\winupdt.exe:*:Enabled:Windows Messanger" /f5⤵
- Modifies firewall policy service
- System Location Discovery: System Language Discovery
- Modifies registry key
PID:2656
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C:\Windows\SysWOW64\cmd.execmd /c REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile /v "DoNotAllowExceptions" /t REG_DWORD /d "0" /f4⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2960 -
C:\Windows\SysWOW64\reg.exeREG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile /v "DoNotAllowExceptions" /t REG_DWORD /d "0" /f5⤵
- Modifies firewall policy service
- System Location Discovery: System Language Discovery
- Modifies registry key
PID:396
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C:\Windows\SysWOW64\cmd.execmd /c REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "C:\Users\Admin\AppData\Roaming\Windows Updater.exe" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\Windows Updater.exe:*:Enabled:Windows Messanger" /f4⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1456 -
C:\Windows\SysWOW64\reg.exeREG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "C:\Users\Admin\AppData\Roaming\Windows Updater.exe" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\Windows Updater.exe:*:Enabled:Windows Messanger" /f5⤵
- Modifies firewall policy service
- System Location Discovery: System Language Discovery
- Modifies registry key
PID:2620
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Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Defense Evasion
Impair Defenses
1Disable or Modify System Firewall
1Modify Registry
3Replay Monitor
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Downloads
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Filesize
158B
MD51954c7e666c5b4d1117ef07bc0c9b8ec
SHA1559e3c0273c1463e9184027b749bdaad0a372681
SHA25635e0dbc8b455ca38976157ce9d0293fd6cdca20f46f1cb69058a1e0f0af6f693
SHA5123939de8d0ab7e67b59ff8bebed5580dafd38d8785193fd42a289728500761a68b9e6660605e19e10d4278dd106fea4b273a208f25485e7389c8f19b2958c926a
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Filesize
1.6MB
MD57e8f6413d14865e17d7412f87eb2dcd0
SHA1f2100e169af117245cb138839f5b3ae69e9138a6
SHA256baf7eb3cd64ae007f5843525164ee2e812e6abf59e82107488bcb2b1887de86e
SHA5126200b29b12be134afe560423054772e7fa9341ab09b095bce6c85c37edb13f6380457adad2392ea628e85ec78ea560d4e5af770fa08c2d18fd889778e52806be