Analysis
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max time kernel
147s -
max time network
19s -
platform
windows7_x64 -
resource
win7-20241010-en -
resource tags
arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system -
submitted
22/11/2024, 19:26
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 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\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 -
Executes dropped EXE 2 IoCs
pid Process 2760 winupdt.exe 2900 winupdt.exe -
Loads dropped DLL 5 IoCs
pid Process 1820 05cd97b8817ccb13f8e7f24fd678298c21f21e5409816e9dc4ac144bf96c3b5a.exe 1820 05cd97b8817ccb13f8e7f24fd678298c21f21e5409816e9dc4ac144bf96c3b5a.exe 1820 05cd97b8817ccb13f8e7f24fd678298c21f21e5409816e9dc4ac144bf96c3b5a.exe 1820 05cd97b8817ccb13f8e7f24fd678298c21f21e5409816e9dc4ac144bf96c3b5a.exe 1820 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 2760 set thread context of 2900 2760 winupdt.exe 33 -
resource yara_rule behavioral1/memory/2900-47-0x0000000000400000-0x000000000045C000-memory.dmp upx behavioral1/memory/2900-53-0x0000000000400000-0x000000000045C000-memory.dmp upx behavioral1/memory/2900-52-0x0000000000400000-0x000000000045C000-memory.dmp upx behavioral1/memory/2900-59-0x0000000000400000-0x000000000045C000-memory.dmp upx behavioral1/memory/2900-60-0x0000000000400000-0x000000000045C000-memory.dmp upx behavioral1/memory/2900-61-0x0000000000400000-0x000000000045C000-memory.dmp upx behavioral1/memory/2900-63-0x0000000000400000-0x000000000045C000-memory.dmp upx behavioral1/memory/2900-64-0x0000000000400000-0x000000000045C000-memory.dmp upx behavioral1/memory/2900-65-0x0000000000400000-0x000000000045C000-memory.dmp upx behavioral1/memory/2900-67-0x0000000000400000-0x000000000045C000-memory.dmp upx behavioral1/memory/2900-69-0x0000000000400000-0x000000000045C000-memory.dmp upx behavioral1/memory/2900-72-0x0000000000400000-0x000000000045C000-memory.dmp upx behavioral1/memory/2900-75-0x0000000000400000-0x000000000045C000-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 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 reg.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language reg.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 05cd97b8817ccb13f8e7f24fd678298c21f21e5409816e9dc4ac144bf96c3b5a.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 Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language winupdt.exe -
Modifies registry key 1 TTPs 4 IoCs
pid Process 2824 reg.exe 2388 reg.exe 1996 reg.exe 2236 reg.exe -
Suspicious use of AdjustPrivilegeToken 35 IoCs
description pid Process Token: 1 2900 winupdt.exe Token: SeCreateTokenPrivilege 2900 winupdt.exe Token: SeAssignPrimaryTokenPrivilege 2900 winupdt.exe Token: SeLockMemoryPrivilege 2900 winupdt.exe Token: SeIncreaseQuotaPrivilege 2900 winupdt.exe Token: SeMachineAccountPrivilege 2900 winupdt.exe Token: SeTcbPrivilege 2900 winupdt.exe Token: SeSecurityPrivilege 2900 winupdt.exe Token: SeTakeOwnershipPrivilege 2900 winupdt.exe Token: SeLoadDriverPrivilege 2900 winupdt.exe Token: SeSystemProfilePrivilege 2900 winupdt.exe Token: SeSystemtimePrivilege 2900 winupdt.exe Token: SeProfSingleProcessPrivilege 2900 winupdt.exe Token: SeIncBasePriorityPrivilege 2900 winupdt.exe Token: SeCreatePagefilePrivilege 2900 winupdt.exe Token: SeCreatePermanentPrivilege 2900 winupdt.exe Token: SeBackupPrivilege 2900 winupdt.exe Token: SeRestorePrivilege 2900 winupdt.exe Token: SeShutdownPrivilege 2900 winupdt.exe Token: SeDebugPrivilege 2900 winupdt.exe Token: SeAuditPrivilege 2900 winupdt.exe Token: SeSystemEnvironmentPrivilege 2900 winupdt.exe Token: SeChangeNotifyPrivilege 2900 winupdt.exe Token: SeRemoteShutdownPrivilege 2900 winupdt.exe Token: SeUndockPrivilege 2900 winupdt.exe Token: SeSyncAgentPrivilege 2900 winupdt.exe Token: SeEnableDelegationPrivilege 2900 winupdt.exe Token: SeManageVolumePrivilege 2900 winupdt.exe Token: SeImpersonatePrivilege 2900 winupdt.exe Token: SeCreateGlobalPrivilege 2900 winupdt.exe Token: 31 2900 winupdt.exe Token: 32 2900 winupdt.exe Token: 33 2900 winupdt.exe Token: 34 2900 winupdt.exe Token: 35 2900 winupdt.exe -
Suspicious use of SetWindowsHookEx 5 IoCs
pid Process 1820 05cd97b8817ccb13f8e7f24fd678298c21f21e5409816e9dc4ac144bf96c3b5a.exe 2760 winupdt.exe 2900 winupdt.exe 2900 winupdt.exe 2900 winupdt.exe -
Suspicious use of WriteProcessMemory 53 IoCs
description pid Process procid_target PID 1820 wrote to memory of 2952 1820 05cd97b8817ccb13f8e7f24fd678298c21f21e5409816e9dc4ac144bf96c3b5a.exe 29 PID 1820 wrote to memory of 2952 1820 05cd97b8817ccb13f8e7f24fd678298c21f21e5409816e9dc4ac144bf96c3b5a.exe 29 PID 1820 wrote to memory of 2952 1820 05cd97b8817ccb13f8e7f24fd678298c21f21e5409816e9dc4ac144bf96c3b5a.exe 29 PID 1820 wrote to memory of 2952 1820 05cd97b8817ccb13f8e7f24fd678298c21f21e5409816e9dc4ac144bf96c3b5a.exe 29 PID 2952 wrote to memory of 2312 2952 cmd.exe 31 PID 2952 wrote to memory of 2312 2952 cmd.exe 31 PID 2952 wrote to memory of 2312 2952 cmd.exe 31 PID 2952 wrote to memory of 2312 2952 cmd.exe 31 PID 1820 wrote to memory of 2760 1820 05cd97b8817ccb13f8e7f24fd678298c21f21e5409816e9dc4ac144bf96c3b5a.exe 32 PID 1820 wrote to memory of 2760 1820 05cd97b8817ccb13f8e7f24fd678298c21f21e5409816e9dc4ac144bf96c3b5a.exe 32 PID 1820 wrote to memory of 2760 1820 05cd97b8817ccb13f8e7f24fd678298c21f21e5409816e9dc4ac144bf96c3b5a.exe 32 PID 1820 wrote to memory of 2760 1820 05cd97b8817ccb13f8e7f24fd678298c21f21e5409816e9dc4ac144bf96c3b5a.exe 32 PID 2760 wrote to memory of 2900 2760 winupdt.exe 33 PID 2760 wrote to memory of 2900 2760 winupdt.exe 33 PID 2760 wrote to memory of 2900 2760 winupdt.exe 33 PID 2760 wrote to memory of 2900 2760 winupdt.exe 33 PID 2760 wrote to memory of 2900 2760 winupdt.exe 33 PID 2760 wrote to memory of 2900 2760 winupdt.exe 33 PID 2760 wrote to memory of 2900 2760 winupdt.exe 33 PID 2760 wrote to memory of 2900 2760 winupdt.exe 33 PID 2760 wrote to memory of 2900 2760 winupdt.exe 33 PID 2900 wrote to memory of 2804 2900 winupdt.exe 34 PID 2900 wrote to memory of 2804 2900 winupdt.exe 34 PID 2900 wrote to memory of 2804 2900 winupdt.exe 34 PID 2900 wrote to memory of 2804 2900 winupdt.exe 34 PID 2900 wrote to memory of 2896 2900 winupdt.exe 35 PID 2900 wrote to memory of 2896 2900 winupdt.exe 35 PID 2900 wrote to memory of 2896 2900 winupdt.exe 35 PID 2900 wrote to memory of 2896 2900 winupdt.exe 35 PID 2900 wrote to memory of 2460 2900 winupdt.exe 37 PID 2900 wrote to memory of 2460 2900 winupdt.exe 37 PID 2900 wrote to memory of 2460 2900 winupdt.exe 37 PID 2900 wrote to memory of 2460 2900 winupdt.exe 37 PID 2900 wrote to memory of 2092 2900 winupdt.exe 38 PID 2900 wrote to memory of 2092 2900 winupdt.exe 38 PID 2900 wrote to memory of 2092 2900 winupdt.exe 38 PID 2900 wrote to memory of 2092 2900 winupdt.exe 38 PID 2804 wrote to memory of 2388 2804 cmd.exe 42 PID 2804 wrote to memory of 2388 2804 cmd.exe 42 PID 2804 wrote to memory of 2388 2804 cmd.exe 42 PID 2804 wrote to memory of 2388 2804 cmd.exe 42 PID 2460 wrote to memory of 1996 2460 cmd.exe 43 PID 2460 wrote to memory of 1996 2460 cmd.exe 43 PID 2460 wrote to memory of 1996 2460 cmd.exe 43 PID 2460 wrote to memory of 1996 2460 cmd.exe 43 PID 2896 wrote to memory of 2236 2896 cmd.exe 44 PID 2896 wrote to memory of 2236 2896 cmd.exe 44 PID 2896 wrote to memory of 2236 2896 cmd.exe 44 PID 2896 wrote to memory of 2236 2896 cmd.exe 44 PID 2092 wrote to memory of 2824 2092 cmd.exe 45 PID 2092 wrote to memory of 2824 2092 cmd.exe 45 PID 2092 wrote to memory of 2824 2092 cmd.exe 45 PID 2092 wrote to memory of 2824 2092 cmd.exe 45
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:1820 -
C:\Windows\SysWOW64\cmd.execmd /c ""C:\Users\Admin\AppData\Local\Temp\gCLjV.bat" "2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2952 -
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:2312
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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:2760 -
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:2900 -
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:2804 -
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:2388
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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:2896 -
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:2236
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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:2460 -
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:1996
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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:2092 -
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:2824
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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
MD5db3cebcd52d951d057efa09afe22b008
SHA1a63e2039727e3169ccaa2f3fbd9de13e7a4df9b1
SHA256e0bf50ad92b265cabf675d2204403050cb69d617a136ceaea0f512dec1faa2c5
SHA512f61532e4eee7137477334dc77c831001797966eb9cb08d0c0a51a6d70fd1a81d42783b86e7089634d7566069671f78af34856cef18f4206623ec914b3a4d3de6