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Analysis
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max time kernel
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max time network
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platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
10/10/2024, 05:50
Behavioral task
behavioral1
Sample
c165218dccbaff185ab86a3453ac4cb2c3c7cfd1bb48589f0f61a4346ff456fbN.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
c165218dccbaff185ab86a3453ac4cb2c3c7cfd1bb48589f0f61a4346ff456fbN.exe
Resource
win10v2004-20241007-en
General
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Target
c165218dccbaff185ab86a3453ac4cb2c3c7cfd1bb48589f0f61a4346ff456fbN.exe
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Size
1.6MB
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MD5
fe73c199bd0e230249a86b72c7fca330
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SHA1
adf6da920b7f88626b5fc00e38ecb5a9f16af4ac
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SHA256
c165218dccbaff185ab86a3453ac4cb2c3c7cfd1bb48589f0f61a4346ff456fb
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SHA512
e21c6a59a89f13782f98b6b35e8a9c864035da7241ee8343734223b0f6e89153d73028a3a48d78771f1030fc59d6b9114cc973779f6a5f8633c69161f6c35890
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SSDEEP
12288:bB5a3hizhz/o456rn9lkQ8rxQslgBKR1jl9RL9BVnDXLmoIY7Tm+jZFluq9wd4UC:bkB4tpHlgGjlLHlFoq2d5C
Malware Config
Signatures
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Modifies firewall policy service 3 TTPs 10 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile reg.exe Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications 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 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\AuthorizedApplications\List 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 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 -
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-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation c165218dccbaff185ab86a3453ac4cb2c3c7cfd1bb48589f0f61a4346ff456fbN.exe -
Executes dropped EXE 2 IoCs
pid Process 4116 winupdt.exe 4844 winupdt.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\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 4116 set thread context of 4844 4116 winupdt.exe 91 -
resource yara_rule behavioral2/memory/2796-0-0x0000000000400000-0x00000000005A8000-memory.dmp upx behavioral2/files/0x0008000000023c45-16.dat upx behavioral2/memory/2796-28-0x0000000000400000-0x00000000005A8000-memory.dmp upx behavioral2/memory/4844-34-0x0000000000400000-0x000000000045C000-memory.dmp upx behavioral2/memory/4844-31-0x0000000000400000-0x000000000045C000-memory.dmp upx behavioral2/memory/4844-37-0x0000000000400000-0x000000000045C000-memory.dmp upx behavioral2/memory/4116-40-0x0000000000400000-0x00000000005A8000-memory.dmp upx behavioral2/memory/4844-43-0x0000000000400000-0x000000000045C000-memory.dmp upx behavioral2/memory/4844-45-0x0000000000400000-0x000000000045C000-memory.dmp upx behavioral2/memory/4844-47-0x0000000000400000-0x000000000045C000-memory.dmp upx behavioral2/memory/4844-48-0x0000000000400000-0x000000000045C000-memory.dmp upx behavioral2/memory/4844-49-0x0000000000400000-0x000000000045C000-memory.dmp upx behavioral2/memory/4844-51-0x0000000000400000-0x000000000045C000-memory.dmp upx behavioral2/memory/4844-52-0x0000000000400000-0x000000000045C000-memory.dmp upx behavioral2/memory/4844-53-0x0000000000400000-0x000000000045C000-memory.dmp upx behavioral2/memory/4844-56-0x0000000000400000-0x000000000045C000-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 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 Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language c165218dccbaff185ab86a3453ac4cb2c3c7cfd1bb48589f0f61a4346ff456fbN.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.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 reg.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language reg.exe -
Modifies registry key 1 TTPs 4 IoCs
pid Process 4700 reg.exe 1432 reg.exe 2456 reg.exe 5044 reg.exe -
Suspicious use of AdjustPrivilegeToken 35 IoCs
description pid Process Token: 1 4844 winupdt.exe Token: SeCreateTokenPrivilege 4844 winupdt.exe Token: SeAssignPrimaryTokenPrivilege 4844 winupdt.exe Token: SeLockMemoryPrivilege 4844 winupdt.exe Token: SeIncreaseQuotaPrivilege 4844 winupdt.exe Token: SeMachineAccountPrivilege 4844 winupdt.exe Token: SeTcbPrivilege 4844 winupdt.exe Token: SeSecurityPrivilege 4844 winupdt.exe Token: SeTakeOwnershipPrivilege 4844 winupdt.exe Token: SeLoadDriverPrivilege 4844 winupdt.exe Token: SeSystemProfilePrivilege 4844 winupdt.exe Token: SeSystemtimePrivilege 4844 winupdt.exe Token: SeProfSingleProcessPrivilege 4844 winupdt.exe Token: SeIncBasePriorityPrivilege 4844 winupdt.exe Token: SeCreatePagefilePrivilege 4844 winupdt.exe Token: SeCreatePermanentPrivilege 4844 winupdt.exe Token: SeBackupPrivilege 4844 winupdt.exe Token: SeRestorePrivilege 4844 winupdt.exe Token: SeShutdownPrivilege 4844 winupdt.exe Token: SeDebugPrivilege 4844 winupdt.exe Token: SeAuditPrivilege 4844 winupdt.exe Token: SeSystemEnvironmentPrivilege 4844 winupdt.exe Token: SeChangeNotifyPrivilege 4844 winupdt.exe Token: SeRemoteShutdownPrivilege 4844 winupdt.exe Token: SeUndockPrivilege 4844 winupdt.exe Token: SeSyncAgentPrivilege 4844 winupdt.exe Token: SeEnableDelegationPrivilege 4844 winupdt.exe Token: SeManageVolumePrivilege 4844 winupdt.exe Token: SeImpersonatePrivilege 4844 winupdt.exe Token: SeCreateGlobalPrivilege 4844 winupdt.exe Token: 31 4844 winupdt.exe Token: 32 4844 winupdt.exe Token: 33 4844 winupdt.exe Token: 34 4844 winupdt.exe Token: 35 4844 winupdt.exe -
Suspicious use of SetWindowsHookEx 5 IoCs
pid Process 2796 c165218dccbaff185ab86a3453ac4cb2c3c7cfd1bb48589f0f61a4346ff456fbN.exe 4116 winupdt.exe 4844 winupdt.exe 4844 winupdt.exe 4844 winupdt.exe -
Suspicious use of WriteProcessMemory 41 IoCs
description pid Process procid_target PID 2796 wrote to memory of 3056 2796 c165218dccbaff185ab86a3453ac4cb2c3c7cfd1bb48589f0f61a4346ff456fbN.exe 86 PID 2796 wrote to memory of 3056 2796 c165218dccbaff185ab86a3453ac4cb2c3c7cfd1bb48589f0f61a4346ff456fbN.exe 86 PID 2796 wrote to memory of 3056 2796 c165218dccbaff185ab86a3453ac4cb2c3c7cfd1bb48589f0f61a4346ff456fbN.exe 86 PID 3056 wrote to memory of 644 3056 cmd.exe 89 PID 3056 wrote to memory of 644 3056 cmd.exe 89 PID 3056 wrote to memory of 644 3056 cmd.exe 89 PID 2796 wrote to memory of 4116 2796 c165218dccbaff185ab86a3453ac4cb2c3c7cfd1bb48589f0f61a4346ff456fbN.exe 90 PID 2796 wrote to memory of 4116 2796 c165218dccbaff185ab86a3453ac4cb2c3c7cfd1bb48589f0f61a4346ff456fbN.exe 90 PID 2796 wrote to memory of 4116 2796 c165218dccbaff185ab86a3453ac4cb2c3c7cfd1bb48589f0f61a4346ff456fbN.exe 90 PID 4116 wrote to memory of 4844 4116 winupdt.exe 91 PID 4116 wrote to memory of 4844 4116 winupdt.exe 91 PID 4116 wrote to memory of 4844 4116 winupdt.exe 91 PID 4116 wrote to memory of 4844 4116 winupdt.exe 91 PID 4116 wrote to memory of 4844 4116 winupdt.exe 91 PID 4116 wrote to memory of 4844 4116 winupdt.exe 91 PID 4116 wrote to memory of 4844 4116 winupdt.exe 91 PID 4116 wrote to memory of 4844 4116 winupdt.exe 91 PID 4844 wrote to memory of 4772 4844 winupdt.exe 92 PID 4844 wrote to memory of 4772 4844 winupdt.exe 92 PID 4844 wrote to memory of 4772 4844 winupdt.exe 92 PID 4844 wrote to memory of 4616 4844 winupdt.exe 93 PID 4844 wrote to memory of 4616 4844 winupdt.exe 93 PID 4844 wrote to memory of 4616 4844 winupdt.exe 93 PID 4844 wrote to memory of 5084 4844 winupdt.exe 94 PID 4844 wrote to memory of 5084 4844 winupdt.exe 94 PID 4844 wrote to memory of 5084 4844 winupdt.exe 94 PID 4844 wrote to memory of 1968 4844 winupdt.exe 95 PID 4844 wrote to memory of 1968 4844 winupdt.exe 95 PID 4844 wrote to memory of 1968 4844 winupdt.exe 95 PID 4772 wrote to memory of 4700 4772 cmd.exe 100 PID 4772 wrote to memory of 4700 4772 cmd.exe 100 PID 4772 wrote to memory of 4700 4772 cmd.exe 100 PID 5084 wrote to memory of 1432 5084 cmd.exe 101 PID 5084 wrote to memory of 1432 5084 cmd.exe 101 PID 5084 wrote to memory of 1432 5084 cmd.exe 101 PID 4616 wrote to memory of 2456 4616 cmd.exe 102 PID 4616 wrote to memory of 2456 4616 cmd.exe 102 PID 4616 wrote to memory of 2456 4616 cmd.exe 102 PID 1968 wrote to memory of 5044 1968 cmd.exe 103 PID 1968 wrote to memory of 5044 1968 cmd.exe 103 PID 1968 wrote to memory of 5044 1968 cmd.exe 103
Processes
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C:\Users\Admin\AppData\Local\Temp\c165218dccbaff185ab86a3453ac4cb2c3c7cfd1bb48589f0f61a4346ff456fbN.exe"C:\Users\Admin\AppData\Local\Temp\c165218dccbaff185ab86a3453ac4cb2c3c7cfd1bb48589f0f61a4346ff456fbN.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2796 -
C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\HGBAx.bat" "2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3056 -
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:644
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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:4116 -
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:4844 -
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:4772 -
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:4700
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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:4616 -
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:2456
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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:5084 -
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:1432
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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:1968 -
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:5044
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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
MD5c80eedfc7f886637b154ddc40303e895
SHA172d0fb835ea5ed1f29cb352a453e4be0c52775c5
SHA2560a2d03d088f8edc3734b60aaf1028c5f6389a5c85d614affc0615739577f1cf5
SHA512bb4308effe52d36cc1cb7f12f3cdf22f6695be6a17a05483b01931264b5973b740f2daa8659d2698271498846fe1debf850120d06b98b8eace9a6d441b34a94a