Analysis
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max time kernel
119s -
max time network
109s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
15-10-2024 02:01
Behavioral task
behavioral1
Sample
d41600f71c138863cee50d4dc4d62cadacb59625d11e76c3cd46053200343700N.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
d41600f71c138863cee50d4dc4d62cadacb59625d11e76c3cd46053200343700N.exe
Resource
win10v2004-20241007-en
General
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Target
d41600f71c138863cee50d4dc4d62cadacb59625d11e76c3cd46053200343700N.exe
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Size
1.7MB
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MD5
4cc551ecb9668a337714fa7311e0e820
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SHA1
495c7d4efbfca03c35b73e026ed401d97ba480b8
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SHA256
d41600f71c138863cee50d4dc4d62cadacb59625d11e76c3cd46053200343700
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SHA512
0aa30968f9f059338c4baa8b5dbcd0024a3ce03eedf961cd161d0e1c71284a59218a3e3b378ae4dd2b27e1f9ddcb2da367cecf62a6800fb6a49fd9efc844d80e
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SSDEEP
12288:DZISeMFVhdL1XBvXxzGNABnwHdxkn7L1GzR1FYoxkM2N4JHUcTwoSu:VIW0rXi1GzRQo08f
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 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 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 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\AuthorizedApplications 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 (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 -
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-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation d41600f71c138863cee50d4dc4d62cadacb59625d11e76c3cd46053200343700N.exe -
Executes dropped EXE 3 IoCs
pid Process 5036 winupdt.exe 4040 winupdt.exe 4508 winupdt.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Window Updates = "C:\\Users\\Admin\\AppData\\Roaming\\Windows Update\\winupdt.exe" reg.exe -
Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 5036 set thread context of 4040 5036 winupdt.exe 92 PID 5036 set thread context of 4508 5036 winupdt.exe 93 -
resource yara_rule behavioral2/memory/112-0-0x0000000000400000-0x00000000005B3000-memory.dmp upx behavioral2/files/0x000b000000023b66-16.dat upx behavioral2/memory/112-28-0x0000000000400000-0x00000000005B3000-memory.dmp upx behavioral2/memory/4040-36-0x0000000000400000-0x000000000045C000-memory.dmp upx behavioral2/memory/4040-34-0x0000000000400000-0x000000000045C000-memory.dmp upx behavioral2/memory/4040-31-0x0000000000400000-0x000000000045C000-memory.dmp upx behavioral2/memory/4508-44-0x0000000000400000-0x0000000000409000-memory.dmp upx behavioral2/memory/4508-48-0x0000000000400000-0x0000000000409000-memory.dmp upx behavioral2/memory/4508-40-0x0000000000400000-0x0000000000409000-memory.dmp upx behavioral2/memory/5036-51-0x0000000000400000-0x00000000005B3000-memory.dmp upx behavioral2/memory/4040-52-0x0000000000400000-0x000000000045C000-memory.dmp upx behavioral2/memory/4508-53-0x0000000000400000-0x0000000000409000-memory.dmp upx behavioral2/memory/4040-54-0x0000000000400000-0x000000000045C000-memory.dmp upx behavioral2/memory/4040-56-0x0000000000400000-0x000000000045C000-memory.dmp upx behavioral2/memory/4040-59-0x0000000000400000-0x000000000045C000-memory.dmp upx behavioral2/memory/4040-61-0x0000000000400000-0x000000000045C000-memory.dmp upx behavioral2/memory/4040-63-0x0000000000400000-0x000000000045C000-memory.dmp upx behavioral2/memory/4040-66-0x0000000000400000-0x000000000045C000-memory.dmp upx behavioral2/memory/4040-68-0x0000000000400000-0x000000000045C000-memory.dmp upx behavioral2/memory/4040-70-0x0000000000400000-0x000000000045C000-memory.dmp upx behavioral2/memory/4040-73-0x0000000000400000-0x000000000045C000-memory.dmp upx behavioral2/memory/4040-75-0x0000000000400000-0x000000000045C000-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 14 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 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 winupdt.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 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 d41600f71c138863cee50d4dc4d62cadacb59625d11e76c3cd46053200343700N.exe -
Modifies registry key 1 TTPs 4 IoCs
pid Process 4772 reg.exe 2924 reg.exe 3212 reg.exe 2724 reg.exe -
Suspicious use of AdjustPrivilegeToken 36 IoCs
description pid Process Token: 1 4040 winupdt.exe Token: SeCreateTokenPrivilege 4040 winupdt.exe Token: SeAssignPrimaryTokenPrivilege 4040 winupdt.exe Token: SeLockMemoryPrivilege 4040 winupdt.exe Token: SeIncreaseQuotaPrivilege 4040 winupdt.exe Token: SeMachineAccountPrivilege 4040 winupdt.exe Token: SeTcbPrivilege 4040 winupdt.exe Token: SeSecurityPrivilege 4040 winupdt.exe Token: SeTakeOwnershipPrivilege 4040 winupdt.exe Token: SeLoadDriverPrivilege 4040 winupdt.exe Token: SeSystemProfilePrivilege 4040 winupdt.exe Token: SeSystemtimePrivilege 4040 winupdt.exe Token: SeProfSingleProcessPrivilege 4040 winupdt.exe Token: SeIncBasePriorityPrivilege 4040 winupdt.exe Token: SeCreatePagefilePrivilege 4040 winupdt.exe Token: SeCreatePermanentPrivilege 4040 winupdt.exe Token: SeBackupPrivilege 4040 winupdt.exe Token: SeRestorePrivilege 4040 winupdt.exe Token: SeShutdownPrivilege 4040 winupdt.exe Token: SeDebugPrivilege 4040 winupdt.exe Token: SeAuditPrivilege 4040 winupdt.exe Token: SeSystemEnvironmentPrivilege 4040 winupdt.exe Token: SeChangeNotifyPrivilege 4040 winupdt.exe Token: SeRemoteShutdownPrivilege 4040 winupdt.exe Token: SeUndockPrivilege 4040 winupdt.exe Token: SeSyncAgentPrivilege 4040 winupdt.exe Token: SeEnableDelegationPrivilege 4040 winupdt.exe Token: SeManageVolumePrivilege 4040 winupdt.exe Token: SeImpersonatePrivilege 4040 winupdt.exe Token: SeCreateGlobalPrivilege 4040 winupdt.exe Token: 31 4040 winupdt.exe Token: 32 4040 winupdt.exe Token: 33 4040 winupdt.exe Token: 34 4040 winupdt.exe Token: 35 4040 winupdt.exe Token: SeDebugPrivilege 4508 winupdt.exe -
Suspicious use of SetWindowsHookEx 6 IoCs
pid Process 112 d41600f71c138863cee50d4dc4d62cadacb59625d11e76c3cd46053200343700N.exe 5036 winupdt.exe 4040 winupdt.exe 4040 winupdt.exe 4040 winupdt.exe 4508 winupdt.exe -
Suspicious use of WriteProcessMemory 49 IoCs
description pid Process procid_target PID 112 wrote to memory of 4212 112 d41600f71c138863cee50d4dc4d62cadacb59625d11e76c3cd46053200343700N.exe 87 PID 112 wrote to memory of 4212 112 d41600f71c138863cee50d4dc4d62cadacb59625d11e76c3cd46053200343700N.exe 87 PID 112 wrote to memory of 4212 112 d41600f71c138863cee50d4dc4d62cadacb59625d11e76c3cd46053200343700N.exe 87 PID 4212 wrote to memory of 220 4212 cmd.exe 90 PID 4212 wrote to memory of 220 4212 cmd.exe 90 PID 4212 wrote to memory of 220 4212 cmd.exe 90 PID 112 wrote to memory of 5036 112 d41600f71c138863cee50d4dc4d62cadacb59625d11e76c3cd46053200343700N.exe 91 PID 112 wrote to memory of 5036 112 d41600f71c138863cee50d4dc4d62cadacb59625d11e76c3cd46053200343700N.exe 91 PID 112 wrote to memory of 5036 112 d41600f71c138863cee50d4dc4d62cadacb59625d11e76c3cd46053200343700N.exe 91 PID 5036 wrote to memory of 4040 5036 winupdt.exe 92 PID 5036 wrote to memory of 4040 5036 winupdt.exe 92 PID 5036 wrote to memory of 4040 5036 winupdt.exe 92 PID 5036 wrote to memory of 4040 5036 winupdt.exe 92 PID 5036 wrote to memory of 4040 5036 winupdt.exe 92 PID 5036 wrote to memory of 4040 5036 winupdt.exe 92 PID 5036 wrote to memory of 4040 5036 winupdt.exe 92 PID 5036 wrote to memory of 4040 5036 winupdt.exe 92 PID 5036 wrote to memory of 4508 5036 winupdt.exe 93 PID 5036 wrote to memory of 4508 5036 winupdt.exe 93 PID 5036 wrote to memory of 4508 5036 winupdt.exe 93 PID 5036 wrote to memory of 4508 5036 winupdt.exe 93 PID 5036 wrote to memory of 4508 5036 winupdt.exe 93 PID 5036 wrote to memory of 4508 5036 winupdt.exe 93 PID 5036 wrote to memory of 4508 5036 winupdt.exe 93 PID 5036 wrote to memory of 4508 5036 winupdt.exe 93 PID 4040 wrote to memory of 1132 4040 winupdt.exe 94 PID 4040 wrote to memory of 1132 4040 winupdt.exe 94 PID 4040 wrote to memory of 1132 4040 winupdt.exe 94 PID 4040 wrote to memory of 1236 4040 winupdt.exe 95 PID 4040 wrote to memory of 1236 4040 winupdt.exe 95 PID 4040 wrote to memory of 1236 4040 winupdt.exe 95 PID 4040 wrote to memory of 2116 4040 winupdt.exe 96 PID 4040 wrote to memory of 2116 4040 winupdt.exe 96 PID 4040 wrote to memory of 2116 4040 winupdt.exe 96 PID 4040 wrote to memory of 2912 4040 winupdt.exe 97 PID 4040 wrote to memory of 2912 4040 winupdt.exe 97 PID 4040 wrote to memory of 2912 4040 winupdt.exe 97 PID 2912 wrote to memory of 2924 2912 cmd.exe 102 PID 2912 wrote to memory of 2924 2912 cmd.exe 102 PID 2912 wrote to memory of 2924 2912 cmd.exe 102 PID 2116 wrote to memory of 4772 2116 cmd.exe 103 PID 2116 wrote to memory of 4772 2116 cmd.exe 103 PID 2116 wrote to memory of 4772 2116 cmd.exe 103 PID 1132 wrote to memory of 3212 1132 cmd.exe 104 PID 1132 wrote to memory of 3212 1132 cmd.exe 104 PID 1132 wrote to memory of 3212 1132 cmd.exe 104 PID 1236 wrote to memory of 2724 1236 cmd.exe 105 PID 1236 wrote to memory of 2724 1236 cmd.exe 105 PID 1236 wrote to memory of 2724 1236 cmd.exe 105
Processes
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C:\Users\Admin\AppData\Local\Temp\d41600f71c138863cee50d4dc4d62cadacb59625d11e76c3cd46053200343700N.exe"C:\Users\Admin\AppData\Local\Temp\d41600f71c138863cee50d4dc4d62cadacb59625d11e76c3cd46053200343700N.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:112 -
C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\nleXV.bat" "2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4212 -
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:220
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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:5036 -
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:4040 -
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:1132 -
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:3212
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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:1236 -
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:2724
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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:2116 -
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:4772
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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:2912 -
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:2924
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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
PID:4508
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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
1.7MB
MD53e40585fd2b626f8bd39668c5540d1ba
SHA1e9eb6396e4cae6f17eccaf69e23cb0c385d7ba75
SHA256bbd2582aaf241b4adf1b8cb45e9362d55654eb35b4322b2eeefc888920340a1a
SHA512ea75e86b6409857363076bfd5750678e5b323443ee55b145d50ba3b2e69d1767bb14704009e6406fabbd906fa0dc4c78e37bde89b616b0a7719b57e78c72274b