Analysis
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max time kernel
149s -
max time network
119s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-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 8 IoCs
description ioc Process 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 (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 -
Executes dropped EXE 2 IoCs
pid Process 2668 winupdt.exe 2540 winupdt.exe -
Loads dropped DLL 6 IoCs
pid Process 1560 c165218dccbaff185ab86a3453ac4cb2c3c7cfd1bb48589f0f61a4346ff456fbN.exe 1560 c165218dccbaff185ab86a3453ac4cb2c3c7cfd1bb48589f0f61a4346ff456fbN.exe 1560 c165218dccbaff185ab86a3453ac4cb2c3c7cfd1bb48589f0f61a4346ff456fbN.exe 1560 c165218dccbaff185ab86a3453ac4cb2c3c7cfd1bb48589f0f61a4346ff456fbN.exe 1560 c165218dccbaff185ab86a3453ac4cb2c3c7cfd1bb48589f0f61a4346ff456fbN.exe 2668 winupdt.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\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 2668 set thread context of 2540 2668 winupdt.exe 35 -
resource yara_rule behavioral1/memory/1560-1-0x0000000000400000-0x00000000005A8000-memory.dmp upx behavioral1/files/0x0007000000016cec-27.dat upx behavioral1/memory/1560-45-0x0000000000400000-0x00000000005A8000-memory.dmp upx behavioral1/memory/2540-51-0x0000000000400000-0x000000000045C000-memory.dmp upx behavioral1/memory/2540-54-0x0000000000400000-0x000000000045C000-memory.dmp upx behavioral1/memory/2540-60-0x0000000000400000-0x000000000045C000-memory.dmp upx behavioral1/memory/2540-58-0x0000000000400000-0x000000000045C000-memory.dmp upx behavioral1/memory/2668-61-0x0000000000400000-0x00000000005A8000-memory.dmp upx behavioral1/memory/2540-64-0x0000000000400000-0x000000000045C000-memory.dmp upx behavioral1/memory/2540-66-0x0000000000400000-0x000000000045C000-memory.dmp upx behavioral1/memory/2540-67-0x0000000000400000-0x000000000045C000-memory.dmp upx behavioral1/memory/2540-69-0x0000000000400000-0x000000000045C000-memory.dmp upx behavioral1/memory/2540-70-0x0000000000400000-0x000000000045C000-memory.dmp upx behavioral1/memory/2540-71-0x0000000000400000-0x000000000045C000-memory.dmp upx behavioral1/memory/2540-74-0x0000000000400000-0x000000000045C000-memory.dmp upx behavioral1/memory/2540-77-0x0000000000400000-0x000000000045C000-memory.dmp upx behavioral1/memory/2540-79-0x0000000000400000-0x000000000045C000-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 cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language winupdt.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 reg.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 c165218dccbaff185ab86a3453ac4cb2c3c7cfd1bb48589f0f61a4346ff456fbN.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 cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language reg.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe -
Modifies registry key 1 TTPs 4 IoCs
pid Process 1856 reg.exe 2420 reg.exe 2232 reg.exe 1660 reg.exe -
Suspicious use of AdjustPrivilegeToken 35 IoCs
description pid Process Token: 1 2540 winupdt.exe Token: SeCreateTokenPrivilege 2540 winupdt.exe Token: SeAssignPrimaryTokenPrivilege 2540 winupdt.exe Token: SeLockMemoryPrivilege 2540 winupdt.exe Token: SeIncreaseQuotaPrivilege 2540 winupdt.exe Token: SeMachineAccountPrivilege 2540 winupdt.exe Token: SeTcbPrivilege 2540 winupdt.exe Token: SeSecurityPrivilege 2540 winupdt.exe Token: SeTakeOwnershipPrivilege 2540 winupdt.exe Token: SeLoadDriverPrivilege 2540 winupdt.exe Token: SeSystemProfilePrivilege 2540 winupdt.exe Token: SeSystemtimePrivilege 2540 winupdt.exe Token: SeProfSingleProcessPrivilege 2540 winupdt.exe Token: SeIncBasePriorityPrivilege 2540 winupdt.exe Token: SeCreatePagefilePrivilege 2540 winupdt.exe Token: SeCreatePermanentPrivilege 2540 winupdt.exe Token: SeBackupPrivilege 2540 winupdt.exe Token: SeRestorePrivilege 2540 winupdt.exe Token: SeShutdownPrivilege 2540 winupdt.exe Token: SeDebugPrivilege 2540 winupdt.exe Token: SeAuditPrivilege 2540 winupdt.exe Token: SeSystemEnvironmentPrivilege 2540 winupdt.exe Token: SeChangeNotifyPrivilege 2540 winupdt.exe Token: SeRemoteShutdownPrivilege 2540 winupdt.exe Token: SeUndockPrivilege 2540 winupdt.exe Token: SeSyncAgentPrivilege 2540 winupdt.exe Token: SeEnableDelegationPrivilege 2540 winupdt.exe Token: SeManageVolumePrivilege 2540 winupdt.exe Token: SeImpersonatePrivilege 2540 winupdt.exe Token: SeCreateGlobalPrivilege 2540 winupdt.exe Token: 31 2540 winupdt.exe Token: 32 2540 winupdt.exe Token: 33 2540 winupdt.exe Token: 34 2540 winupdt.exe Token: 35 2540 winupdt.exe -
Suspicious use of SetWindowsHookEx 5 IoCs
pid Process 1560 c165218dccbaff185ab86a3453ac4cb2c3c7cfd1bb48589f0f61a4346ff456fbN.exe 2668 winupdt.exe 2540 winupdt.exe 2540 winupdt.exe 2540 winupdt.exe -
Suspicious use of WriteProcessMemory 53 IoCs
description pid Process procid_target PID 1560 wrote to memory of 2756 1560 c165218dccbaff185ab86a3453ac4cb2c3c7cfd1bb48589f0f61a4346ff456fbN.exe 31 PID 1560 wrote to memory of 2756 1560 c165218dccbaff185ab86a3453ac4cb2c3c7cfd1bb48589f0f61a4346ff456fbN.exe 31 PID 1560 wrote to memory of 2756 1560 c165218dccbaff185ab86a3453ac4cb2c3c7cfd1bb48589f0f61a4346ff456fbN.exe 31 PID 1560 wrote to memory of 2756 1560 c165218dccbaff185ab86a3453ac4cb2c3c7cfd1bb48589f0f61a4346ff456fbN.exe 31 PID 2756 wrote to memory of 2688 2756 cmd.exe 33 PID 2756 wrote to memory of 2688 2756 cmd.exe 33 PID 2756 wrote to memory of 2688 2756 cmd.exe 33 PID 2756 wrote to memory of 2688 2756 cmd.exe 33 PID 1560 wrote to memory of 2668 1560 c165218dccbaff185ab86a3453ac4cb2c3c7cfd1bb48589f0f61a4346ff456fbN.exe 34 PID 1560 wrote to memory of 2668 1560 c165218dccbaff185ab86a3453ac4cb2c3c7cfd1bb48589f0f61a4346ff456fbN.exe 34 PID 1560 wrote to memory of 2668 1560 c165218dccbaff185ab86a3453ac4cb2c3c7cfd1bb48589f0f61a4346ff456fbN.exe 34 PID 1560 wrote to memory of 2668 1560 c165218dccbaff185ab86a3453ac4cb2c3c7cfd1bb48589f0f61a4346ff456fbN.exe 34 PID 2668 wrote to memory of 2540 2668 winupdt.exe 35 PID 2668 wrote to memory of 2540 2668 winupdt.exe 35 PID 2668 wrote to memory of 2540 2668 winupdt.exe 35 PID 2668 wrote to memory of 2540 2668 winupdt.exe 35 PID 2668 wrote to memory of 2540 2668 winupdt.exe 35 PID 2668 wrote to memory of 2540 2668 winupdt.exe 35 PID 2668 wrote to memory of 2540 2668 winupdt.exe 35 PID 2668 wrote to memory of 2540 2668 winupdt.exe 35 PID 2668 wrote to memory of 2540 2668 winupdt.exe 35 PID 2540 wrote to memory of 2216 2540 winupdt.exe 36 PID 2540 wrote to memory of 2216 2540 winupdt.exe 36 PID 2540 wrote to memory of 2216 2540 winupdt.exe 36 PID 2540 wrote to memory of 2216 2540 winupdt.exe 36 PID 2540 wrote to memory of 1800 2540 winupdt.exe 37 PID 2540 wrote to memory of 1800 2540 winupdt.exe 37 PID 2540 wrote to memory of 1800 2540 winupdt.exe 37 PID 2540 wrote to memory of 1800 2540 winupdt.exe 37 PID 2540 wrote to memory of 1972 2540 winupdt.exe 39 PID 2540 wrote to memory of 1972 2540 winupdt.exe 39 PID 2540 wrote to memory of 1972 2540 winupdt.exe 39 PID 2540 wrote to memory of 1972 2540 winupdt.exe 39 PID 2540 wrote to memory of 2832 2540 winupdt.exe 40 PID 2540 wrote to memory of 2832 2540 winupdt.exe 40 PID 2540 wrote to memory of 2832 2540 winupdt.exe 40 PID 2540 wrote to memory of 2832 2540 winupdt.exe 40 PID 1800 wrote to memory of 1856 1800 cmd.exe 43 PID 1800 wrote to memory of 1856 1800 cmd.exe 43 PID 1800 wrote to memory of 1856 1800 cmd.exe 43 PID 1800 wrote to memory of 1856 1800 cmd.exe 43 PID 2216 wrote to memory of 2232 2216 cmd.exe 45 PID 2216 wrote to memory of 2232 2216 cmd.exe 45 PID 2216 wrote to memory of 2232 2216 cmd.exe 45 PID 2216 wrote to memory of 2232 2216 cmd.exe 45 PID 1972 wrote to memory of 2420 1972 cmd.exe 46 PID 1972 wrote to memory of 2420 1972 cmd.exe 46 PID 1972 wrote to memory of 2420 1972 cmd.exe 46 PID 1972 wrote to memory of 2420 1972 cmd.exe 46 PID 2832 wrote to memory of 1660 2832 cmd.exe 47 PID 2832 wrote to memory of 1660 2832 cmd.exe 47 PID 2832 wrote to memory of 1660 2832 cmd.exe 47 PID 2832 wrote to memory of 1660 2832 cmd.exe 47
Processes
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C:\Users\Admin\AppData\Local\Temp\c165218dccbaff185ab86a3453ac4cb2c3c7cfd1bb48589f0f61a4346ff456fbN.exe"C:\Users\Admin\AppData\Local\Temp\c165218dccbaff185ab86a3453ac4cb2c3c7cfd1bb48589f0f61a4346ff456fbN.exe"1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1560 -
C:\Windows\SysWOW64\cmd.execmd /c ""C:\Users\Admin\AppData\Local\Temp\fBRuA.bat" "2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2756 -
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:2688
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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
- Loads dropped DLL
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2668 -
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:2540 -
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:2216 -
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:2232
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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:1800 -
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:1856
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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:1972 -
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:2420
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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:2832 -
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:1660
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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
Loading Replay Monitor...
Downloads
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Filesize
158B
MD51954c7e666c5b4d1117ef07bc0c9b8ec
SHA1559e3c0273c1463e9184027b749bdaad0a372681
SHA25635e0dbc8b455ca38976157ce9d0293fd6cdca20f46f1cb69058a1e0f0af6f693
SHA5123939de8d0ab7e67b59ff8bebed5580dafd38d8785193fd42a289728500761a68b9e6660605e19e10d4278dd106fea4b273a208f25485e7389c8f19b2958c926a
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Filesize
1.6MB
MD5b1eb391171a6b7750290e94535a3cdf2
SHA1e241a3314a6f36d619feee05d61b7c41f078df52
SHA25607942e3efa7c356341b6fabee734c155ad4b008383dfac3ee010dcd3aa92c07a
SHA512252154baf0a87bf6817719fb90c21ca471f89bf8807cd02162c2a866eedf8d34470865a3734841883178895af0ab434d549495274704ab428948ee1873b1ffc4