Analysis
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max time kernel
119s -
max time network
117s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
22/10/2024, 10:29
Behavioral task
behavioral1
Sample
7ff06f9b3f8fe3f8178fe99ff2a6239f707adf57ce4f5cd15766cdfd818a9ec5N.exe
Resource
win7-20241010-en
windows7-x64
18 signatures
120 seconds
General
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Target
7ff06f9b3f8fe3f8178fe99ff2a6239f707adf57ce4f5cd15766cdfd818a9ec5N.exe
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Size
636KB
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MD5
5d99afdc7eae37f3d3c15d0afe04c6a0
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SHA1
00f0e1fb92389422a9e22bffd4a966e980f40990
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SHA256
7ff06f9b3f8fe3f8178fe99ff2a6239f707adf57ce4f5cd15766cdfd818a9ec5
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SHA512
521919f61c1e74e881dbbcd86f8dbc2f6e3da62249b33cf5e4d2071c4eef3c9104743c50e319daad9629a4afb6953108ec776933ae13a1df551438997ccc82a5
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SSDEEP
12288:/pwABK90BOe/x9lPAYvxPQVjdsAY2XjWlnlpTMMXG91uhKIXn/W:xwAcu99lPzvxP+Bsz2XjWTRMQckkIXne
Malware Config
Signatures
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Modifies WinLogon for persistence 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\Users\\Admin\\AppData\\Roaming\\Windupdt\\winupdate.exe" 7ff06f9b3f8fe3f8178fe99ff2a6239f707adf57ce4f5cd15766cdfd818a9ec5N.exe -
Modifies firewall policy service 3 TTPs 6 IoCs
description ioc Process Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\EnableFirewall = "1" winupdate.exe Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DisableNotifications = "1" winupdate.exe Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile explorer.exe Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\EnableFirewall = "1" explorer.exe Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DisableNotifications = "1" explorer.exe Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile winupdate.exe -
Modifies security service 2 TTPs 2 IoCs
description ioc Process Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\wscsvc\Start = "4" winupdate.exe Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\wscsvc\Start = "4" explorer.exe -
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1" explorer.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1" winupdate.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1" winupdate.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1" explorer.exe -
Disables RegEdit via registry modification 2 IoCs
description ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1" winupdate.exe Set value (int) \REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1" explorer.exe -
Disables Task Manager via registry modification
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Checks BIOS information in registry 2 TTPs 3 IoCs
BIOS information is often read in order to detect sandboxing environments.
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate explorer.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate 7ff06f9b3f8fe3f8178fe99ff2a6239f707adf57ce4f5cd15766cdfd818a9ec5N.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate winupdate.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-1-5-21-940901362-3608833189-1915618603-1000\Control Panel\International\Geo\Nation 7ff06f9b3f8fe3f8178fe99ff2a6239f707adf57ce4f5cd15766cdfd818a9ec5N.exe -
Executes dropped EXE 1 IoCs
pid Process 1248 winupdate.exe -
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1" winupdate.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1" winupdate.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\sys = "C:\\Users\\Admin\\AppData\\Roaming\\Windupdt\\winupdate.exe" 7ff06f9b3f8fe3f8178fe99ff2a6239f707adf57ce4f5cd15766cdfd818a9ec5N.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1248 set thread context of 2980 1248 winupdate.exe 89 -
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 3 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 7ff06f9b3f8fe3f8178fe99ff2a6239f707adf57ce4f5cd15766cdfd818a9ec5N.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language winupdate.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language explorer.exe -
Checks processor information in registry 2 TTPs 12 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier 7ff06f9b3f8fe3f8178fe99ff2a6239f707adf57ce4f5cd15766cdfd818a9ec5N.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier 7ff06f9b3f8fe3f8178fe99ff2a6239f707adf57ce4f5cd15766cdfd818a9ec5N.exe Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 winupdate.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString winupdate.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier winupdate.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier explorer.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier explorer.exe Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 7ff06f9b3f8fe3f8178fe99ff2a6239f707adf57ce4f5cd15766cdfd818a9ec5N.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString 7ff06f9b3f8fe3f8178fe99ff2a6239f707adf57ce4f5cd15766cdfd818a9ec5N.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier winupdate.exe Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 explorer.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString explorer.exe -
Enumerates system info in registry 2 TTPs 3 IoCs
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier 7ff06f9b3f8fe3f8178fe99ff2a6239f707adf57ce4f5cd15766cdfd818a9ec5N.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier winupdate.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier explorer.exe -
Modifies registry class 1 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\ 7ff06f9b3f8fe3f8178fe99ff2a6239f707adf57ce4f5cd15766cdfd818a9ec5N.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2980 explorer.exe -
Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeIncreaseQuotaPrivilege 3316 7ff06f9b3f8fe3f8178fe99ff2a6239f707adf57ce4f5cd15766cdfd818a9ec5N.exe Token: SeSecurityPrivilege 3316 7ff06f9b3f8fe3f8178fe99ff2a6239f707adf57ce4f5cd15766cdfd818a9ec5N.exe Token: SeTakeOwnershipPrivilege 3316 7ff06f9b3f8fe3f8178fe99ff2a6239f707adf57ce4f5cd15766cdfd818a9ec5N.exe Token: SeLoadDriverPrivilege 3316 7ff06f9b3f8fe3f8178fe99ff2a6239f707adf57ce4f5cd15766cdfd818a9ec5N.exe Token: SeSystemProfilePrivilege 3316 7ff06f9b3f8fe3f8178fe99ff2a6239f707adf57ce4f5cd15766cdfd818a9ec5N.exe Token: SeSystemtimePrivilege 3316 7ff06f9b3f8fe3f8178fe99ff2a6239f707adf57ce4f5cd15766cdfd818a9ec5N.exe Token: SeProfSingleProcessPrivilege 3316 7ff06f9b3f8fe3f8178fe99ff2a6239f707adf57ce4f5cd15766cdfd818a9ec5N.exe Token: SeIncBasePriorityPrivilege 3316 7ff06f9b3f8fe3f8178fe99ff2a6239f707adf57ce4f5cd15766cdfd818a9ec5N.exe Token: SeCreatePagefilePrivilege 3316 7ff06f9b3f8fe3f8178fe99ff2a6239f707adf57ce4f5cd15766cdfd818a9ec5N.exe Token: SeBackupPrivilege 3316 7ff06f9b3f8fe3f8178fe99ff2a6239f707adf57ce4f5cd15766cdfd818a9ec5N.exe Token: SeRestorePrivilege 3316 7ff06f9b3f8fe3f8178fe99ff2a6239f707adf57ce4f5cd15766cdfd818a9ec5N.exe Token: SeShutdownPrivilege 3316 7ff06f9b3f8fe3f8178fe99ff2a6239f707adf57ce4f5cd15766cdfd818a9ec5N.exe Token: SeDebugPrivilege 3316 7ff06f9b3f8fe3f8178fe99ff2a6239f707adf57ce4f5cd15766cdfd818a9ec5N.exe Token: SeSystemEnvironmentPrivilege 3316 7ff06f9b3f8fe3f8178fe99ff2a6239f707adf57ce4f5cd15766cdfd818a9ec5N.exe Token: SeChangeNotifyPrivilege 3316 7ff06f9b3f8fe3f8178fe99ff2a6239f707adf57ce4f5cd15766cdfd818a9ec5N.exe Token: SeRemoteShutdownPrivilege 3316 7ff06f9b3f8fe3f8178fe99ff2a6239f707adf57ce4f5cd15766cdfd818a9ec5N.exe Token: SeUndockPrivilege 3316 7ff06f9b3f8fe3f8178fe99ff2a6239f707adf57ce4f5cd15766cdfd818a9ec5N.exe Token: SeManageVolumePrivilege 3316 7ff06f9b3f8fe3f8178fe99ff2a6239f707adf57ce4f5cd15766cdfd818a9ec5N.exe Token: SeImpersonatePrivilege 3316 7ff06f9b3f8fe3f8178fe99ff2a6239f707adf57ce4f5cd15766cdfd818a9ec5N.exe Token: SeCreateGlobalPrivilege 3316 7ff06f9b3f8fe3f8178fe99ff2a6239f707adf57ce4f5cd15766cdfd818a9ec5N.exe Token: 33 3316 7ff06f9b3f8fe3f8178fe99ff2a6239f707adf57ce4f5cd15766cdfd818a9ec5N.exe Token: 34 3316 7ff06f9b3f8fe3f8178fe99ff2a6239f707adf57ce4f5cd15766cdfd818a9ec5N.exe Token: 35 3316 7ff06f9b3f8fe3f8178fe99ff2a6239f707adf57ce4f5cd15766cdfd818a9ec5N.exe Token: 36 3316 7ff06f9b3f8fe3f8178fe99ff2a6239f707adf57ce4f5cd15766cdfd818a9ec5N.exe Token: SeIncreaseQuotaPrivilege 1248 winupdate.exe Token: SeSecurityPrivilege 1248 winupdate.exe Token: SeTakeOwnershipPrivilege 1248 winupdate.exe Token: SeLoadDriverPrivilege 1248 winupdate.exe Token: SeSystemProfilePrivilege 1248 winupdate.exe Token: SeSystemtimePrivilege 1248 winupdate.exe Token: SeProfSingleProcessPrivilege 1248 winupdate.exe Token: SeIncBasePriorityPrivilege 1248 winupdate.exe Token: SeCreatePagefilePrivilege 1248 winupdate.exe Token: SeBackupPrivilege 1248 winupdate.exe Token: SeRestorePrivilege 1248 winupdate.exe Token: SeShutdownPrivilege 1248 winupdate.exe Token: SeDebugPrivilege 1248 winupdate.exe Token: SeSystemEnvironmentPrivilege 1248 winupdate.exe Token: SeChangeNotifyPrivilege 1248 winupdate.exe Token: SeRemoteShutdownPrivilege 1248 winupdate.exe Token: SeUndockPrivilege 1248 winupdate.exe Token: SeManageVolumePrivilege 1248 winupdate.exe Token: SeImpersonatePrivilege 1248 winupdate.exe Token: SeCreateGlobalPrivilege 1248 winupdate.exe Token: 33 1248 winupdate.exe Token: 34 1248 winupdate.exe Token: 35 1248 winupdate.exe Token: 36 1248 winupdate.exe Token: SeIncreaseQuotaPrivilege 2980 explorer.exe Token: SeSecurityPrivilege 2980 explorer.exe Token: SeTakeOwnershipPrivilege 2980 explorer.exe Token: SeLoadDriverPrivilege 2980 explorer.exe Token: SeSystemProfilePrivilege 2980 explorer.exe Token: SeSystemtimePrivilege 2980 explorer.exe Token: SeProfSingleProcessPrivilege 2980 explorer.exe Token: SeIncBasePriorityPrivilege 2980 explorer.exe Token: SeCreatePagefilePrivilege 2980 explorer.exe Token: SeBackupPrivilege 2980 explorer.exe Token: SeRestorePrivilege 2980 explorer.exe Token: SeShutdownPrivilege 2980 explorer.exe Token: SeDebugPrivilege 2980 explorer.exe Token: SeSystemEnvironmentPrivilege 2980 explorer.exe Token: SeChangeNotifyPrivilege 2980 explorer.exe Token: SeRemoteShutdownPrivilege 2980 explorer.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 2980 explorer.exe -
Suspicious use of WriteProcessMemory 11 IoCs
description pid Process procid_target PID 3316 wrote to memory of 3012 3316 7ff06f9b3f8fe3f8178fe99ff2a6239f707adf57ce4f5cd15766cdfd818a9ec5N.exe 85 PID 3316 wrote to memory of 3012 3316 7ff06f9b3f8fe3f8178fe99ff2a6239f707adf57ce4f5cd15766cdfd818a9ec5N.exe 85 PID 3316 wrote to memory of 3012 3316 7ff06f9b3f8fe3f8178fe99ff2a6239f707adf57ce4f5cd15766cdfd818a9ec5N.exe 85 PID 3316 wrote to memory of 1248 3316 7ff06f9b3f8fe3f8178fe99ff2a6239f707adf57ce4f5cd15766cdfd818a9ec5N.exe 87 PID 3316 wrote to memory of 1248 3316 7ff06f9b3f8fe3f8178fe99ff2a6239f707adf57ce4f5cd15766cdfd818a9ec5N.exe 87 PID 3316 wrote to memory of 1248 3316 7ff06f9b3f8fe3f8178fe99ff2a6239f707adf57ce4f5cd15766cdfd818a9ec5N.exe 87 PID 1248 wrote to memory of 2980 1248 winupdate.exe 89 PID 1248 wrote to memory of 2980 1248 winupdate.exe 89 PID 1248 wrote to memory of 2980 1248 winupdate.exe 89 PID 1248 wrote to memory of 2980 1248 winupdate.exe 89 PID 1248 wrote to memory of 2980 1248 winupdate.exe 89 -
System policy modification 1 TTPs 3 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\CurrentVersion\Explorern winupdate.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\CurrentVersion\Explorern\NoControlPanel = "1" winupdate.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\CurrentVersion winupdate.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\7ff06f9b3f8fe3f8178fe99ff2a6239f707adf57ce4f5cd15766cdfd818a9ec5N.exe"C:\Users\Admin\AppData\Local\Temp\7ff06f9b3f8fe3f8178fe99ff2a6239f707adf57ce4f5cd15766cdfd818a9ec5N.exe"1⤵
- Modifies WinLogon for persistence
- Checks BIOS information in registry
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Checks processor information in registry
- Enumerates system info in registry
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3316 -
C:\Windows\SysWOW64\explorer.exe"C:\Windows\SysWOW64\explorer.exe"2⤵PID:3012
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C:\Users\Admin\AppData\Roaming\Windupdt\winupdate.exe"C:\Users\Admin\AppData\Roaming\Windupdt\winupdate.exe"2⤵
- Modifies firewall policy service
- Modifies security service
- Windows security bypass
- Disables RegEdit via registry modification
- Checks BIOS information in registry
- Executes dropped EXE
- Windows security modification
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- System policy modification
PID:1248 -
C:\Windows\SysWOW64\explorer.exe"C:\Windows\SysWOW64\explorer.exe"3⤵
- Modifies firewall policy service
- Modifies security service
- Windows security bypass
- Disables RegEdit via registry modification
- Checks BIOS information in registry
- System Location Discovery: System Language Discovery
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:2980
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Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Create or Modify System Process
2Windows Service
2Privilege Escalation
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Create or Modify System Process
2Windows Service
2Defense Evasion
Impair Defenses
3Disable or Modify System Firewall
1Disable or Modify Tools
2Modify Registry
7Replay Monitor
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Downloads
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Filesize
636KB
MD55d99afdc7eae37f3d3c15d0afe04c6a0
SHA100f0e1fb92389422a9e22bffd4a966e980f40990
SHA2567ff06f9b3f8fe3f8178fe99ff2a6239f707adf57ce4f5cd15766cdfd818a9ec5
SHA512521919f61c1e74e881dbbcd86f8dbc2f6e3da62249b33cf5e4d2071c4eef3c9104743c50e319daad9629a4afb6953108ec776933ae13a1df551438997ccc82a5