Analysis
- max time kernel
10s - max time network
5s - platform
windows10-2004_x64 - resource
win10v2004-20220901-en - resource tags
arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system - submitted
23/10/2022, 16:33
Static task
static1
Behavioral task
behavioral1
Sample
aaef9bebdcd49a4d0191a751bb18d2ae1e182851cf5f6c4c5cea70aba8de86f8.exe
Resource
win7-20220812-en
windows7-x64
18 signatures
10 seconds
General
- Target aaef9bebdcd49a4d0191a751bb18d2ae1e182851cf5f6c4c5cea70aba8de86f8.exe
- Size 341KB
- Sample221023-t212vsbcc7
- SHA256 aaef9bebdcd49a4d0191a751bb18d2ae1e182851cf5f6c4c5cea70aba8de86f8
- MD5 2dd74e8823191aa09223f463c1ed6c42
- SHA1 48e6a01df30dc9b747118020ebba0ca033ed706e
- SHA512 7934007f62682d076e6a66b01bf9cc90c4c6b8c098fb51f5ae9e8820f577c76bcb05917b4bc0d3822d103e24eaf544ae6c8d878fe7ef3701b32b83a261b7db63
- SSDEEP 6144:YsYC13QdnprC6ft8F/lP5FAphjwIj6bV9iLUyfrJdpMo:YDCRQdnU618YsIjAWUyTJMo
- MD5 SHA1 SHA512 SSDEEP
Malware Config
Signatures
- Modifies firewall policy service 2 TTPs 4 IoCs
description ioc Process Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\PublicProfile\EnableFirewall = "0" explorer.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 = "0" explorer.exe Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\PublicProfile explorer.exe - Sets file execution options in registry 2 TTPs 4 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\eg1553e1a.exe\DisableExceptionChainValidation aaef9bebdcd49a4d0191a751bb18d2ae1e182851cf5f6c4c5cea70aba8de86f8.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\rstrui.exe explorer.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\rstrui.exe\Debugger = "dsoukgn.exe" explorer.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\eg1553e1a.exe aaef9bebdcd49a4d0191a751bb18d2ae1e182851cf5f6c4c5cea70aba8de86f8.exe - Checks BIOS information in registry 2 TTPs 1 IoCs
BIOS information is often read in order to detect sandboxing environments.
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion explorer.exe - Adds Run key to start application 2 TTPs 4 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Device Driver Setup 1.2.510.2001 = "\"C:\\ProgramData\\Device Driver Setup\\eg1553e1a.exe\"" explorer.exe Key created \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce explorer.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\Device Driver Setup 1.2.510.2001 = "C:\\ProgramData\\Device Driver Setup\\eg1553e1a.exe" explorer.exe Key created \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run explorer.exe -
description ioc Process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA aaef9bebdcd49a4d0191a751bb18d2ae1e182851cf5f6c4c5cea70aba8de86f8.exe - Suspicious use of NtSetInformationThreadHideFromDebugger 8 IoCs
pid Process 2236 aaef9bebdcd49a4d0191a751bb18d2ae1e182851cf5f6c4c5cea70aba8de86f8.exe 3748 explorer.exe 3748 explorer.exe 3748 explorer.exe 3748 explorer.exe 3748 explorer.exe 3748 explorer.exe 3748 explorer.exe - Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1716 set thread context of 2236 1716 aaef9bebdcd49a4d0191a751bb18d2ae1e182851cf5f6c4c5cea70aba8de86f8.exe 85 - Checks processor information in registry 2 TTPs 4 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 aaef9bebdcd49a4d0191a751bb18d2ae1e182851cf5f6c4c5cea70aba8de86f8.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString aaef9bebdcd49a4d0191a751bb18d2ae1e182851cf5f6c4c5cea70aba8de86f8.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 2 IoCs
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS explorer.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemManufacturer explorer.exe - Modifies Internet Explorer Protected Mode 1 TTPs 4 IoCs
description ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\1\2500 = "3" explorer.exe Set value (int) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\2\2500 = "3" explorer.exe Set value (int) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3\2500 = "3" explorer.exe Set value (int) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\4\2500 = "3" explorer.exe - Modifies Internet Explorer Protected Mode Banner 1 TTPs 1 IoCs
description ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\Main\NoProtectedModeBanner = "1" explorer.exe -
description ioc Process Key created \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Internet Explorer\Main explorer.exe - Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 3748 explorer.exe 3748 explorer.exe 3748 explorer.exe 3748 explorer.exe - Suspicious behavior: MapViewOfSection 2 IoCs
pid Process 2236 aaef9bebdcd49a4d0191a751bb18d2ae1e182851cf5f6c4c5cea70aba8de86f8.exe 2236 aaef9bebdcd49a4d0191a751bb18d2ae1e182851cf5f6c4c5cea70aba8de86f8.exe - Suspicious behavior: RenamesItself 1 IoCs
pid Process 2236 aaef9bebdcd49a4d0191a751bb18d2ae1e182851cf5f6c4c5cea70aba8de86f8.exe - Suspicious use of AdjustPrivilegeToken 28 IoCs
description pid Process Token: SeDebugPrivilege 2236 aaef9bebdcd49a4d0191a751bb18d2ae1e182851cf5f6c4c5cea70aba8de86f8.exe Token: SeRestorePrivilege 2236 aaef9bebdcd49a4d0191a751bb18d2ae1e182851cf5f6c4c5cea70aba8de86f8.exe Token: SeBackupPrivilege 2236 aaef9bebdcd49a4d0191a751bb18d2ae1e182851cf5f6c4c5cea70aba8de86f8.exe Token: SeLoadDriverPrivilege 2236 aaef9bebdcd49a4d0191a751bb18d2ae1e182851cf5f6c4c5cea70aba8de86f8.exe Token: SeCreatePagefilePrivilege 2236 aaef9bebdcd49a4d0191a751bb18d2ae1e182851cf5f6c4c5cea70aba8de86f8.exe Token: SeShutdownPrivilege 2236 aaef9bebdcd49a4d0191a751bb18d2ae1e182851cf5f6c4c5cea70aba8de86f8.exe Token: SeTakeOwnershipPrivilege 2236 aaef9bebdcd49a4d0191a751bb18d2ae1e182851cf5f6c4c5cea70aba8de86f8.exe Token: SeChangeNotifyPrivilege 2236 aaef9bebdcd49a4d0191a751bb18d2ae1e182851cf5f6c4c5cea70aba8de86f8.exe Token: SeCreateTokenPrivilege 2236 aaef9bebdcd49a4d0191a751bb18d2ae1e182851cf5f6c4c5cea70aba8de86f8.exe Token: SeMachineAccountPrivilege 2236 aaef9bebdcd49a4d0191a751bb18d2ae1e182851cf5f6c4c5cea70aba8de86f8.exe Token: SeSecurityPrivilege 2236 aaef9bebdcd49a4d0191a751bb18d2ae1e182851cf5f6c4c5cea70aba8de86f8.exe Token: SeAssignPrimaryTokenPrivilege 2236 aaef9bebdcd49a4d0191a751bb18d2ae1e182851cf5f6c4c5cea70aba8de86f8.exe Token: SeCreateGlobalPrivilege 2236 aaef9bebdcd49a4d0191a751bb18d2ae1e182851cf5f6c4c5cea70aba8de86f8.exe Token: 33 2236 aaef9bebdcd49a4d0191a751bb18d2ae1e182851cf5f6c4c5cea70aba8de86f8.exe Token: SeDebugPrivilege 3748 explorer.exe Token: SeRestorePrivilege 3748 explorer.exe Token: SeBackupPrivilege 3748 explorer.exe Token: SeLoadDriverPrivilege 3748 explorer.exe Token: SeCreatePagefilePrivilege 3748 explorer.exe Token: SeShutdownPrivilege 3748 explorer.exe Token: SeTakeOwnershipPrivilege 3748 explorer.exe Token: SeChangeNotifyPrivilege 3748 explorer.exe Token: SeCreateTokenPrivilege 3748 explorer.exe Token: SeMachineAccountPrivilege 3748 explorer.exe Token: SeSecurityPrivilege 3748 explorer.exe Token: SeAssignPrimaryTokenPrivilege 3748 explorer.exe Token: SeCreateGlobalPrivilege 3748 explorer.exe Token: 33 3748 explorer.exe - Suspicious use of WriteProcessMemory 13 IoCs
description pid Process procid_target PID 1716 wrote to memory of 2236 1716 aaef9bebdcd49a4d0191a751bb18d2ae1e182851cf5f6c4c5cea70aba8de86f8.exe 85 PID 1716 wrote to memory of 2236 1716 aaef9bebdcd49a4d0191a751bb18d2ae1e182851cf5f6c4c5cea70aba8de86f8.exe 85 PID 1716 wrote to memory of 2236 1716 aaef9bebdcd49a4d0191a751bb18d2ae1e182851cf5f6c4c5cea70aba8de86f8.exe 85 PID 1716 wrote to memory of 2236 1716 aaef9bebdcd49a4d0191a751bb18d2ae1e182851cf5f6c4c5cea70aba8de86f8.exe 85 PID 1716 wrote to memory of 2236 1716 aaef9bebdcd49a4d0191a751bb18d2ae1e182851cf5f6c4c5cea70aba8de86f8.exe 85 PID 1716 wrote to memory of 2236 1716 aaef9bebdcd49a4d0191a751bb18d2ae1e182851cf5f6c4c5cea70aba8de86f8.exe 85 PID 1716 wrote to memory of 2236 1716 aaef9bebdcd49a4d0191a751bb18d2ae1e182851cf5f6c4c5cea70aba8de86f8.exe 85 PID 1716 wrote to memory of 2236 1716 aaef9bebdcd49a4d0191a751bb18d2ae1e182851cf5f6c4c5cea70aba8de86f8.exe 85 PID 1716 wrote to memory of 2236 1716 aaef9bebdcd49a4d0191a751bb18d2ae1e182851cf5f6c4c5cea70aba8de86f8.exe 85 PID 1716 wrote to memory of 2236 1716 aaef9bebdcd49a4d0191a751bb18d2ae1e182851cf5f6c4c5cea70aba8de86f8.exe 85 PID 2236 wrote to memory of 3748 2236 aaef9bebdcd49a4d0191a751bb18d2ae1e182851cf5f6c4c5cea70aba8de86f8.exe 88 PID 2236 wrote to memory of 3748 2236 aaef9bebdcd49a4d0191a751bb18d2ae1e182851cf5f6c4c5cea70aba8de86f8.exe 88 PID 2236 wrote to memory of 3748 2236 aaef9bebdcd49a4d0191a751bb18d2ae1e182851cf5f6c4c5cea70aba8de86f8.exe 88
Processes
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C:\Users\Admin\AppData\Local\Temp\aaef9bebdcd49a4d0191a751bb18d2ae1e182851cf5f6c4c5cea70aba8de86f8.exe"C:\Users\Admin\AppData\Local\Temp\aaef9bebdcd49a4d0191a751bb18d2ae1e182851cf5f6c4c5cea70aba8de86f8.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1716 -
C:\Users\Admin\AppData\Local\Temp\aaef9bebdcd49a4d0191a751bb18d2ae1e182851cf5f6c4c5cea70aba8de86f8.exe"C:\Users\Admin\AppData\Local\Temp\aaef9bebdcd49a4d0191a751bb18d2ae1e182851cf5f6c4c5cea70aba8de86f8.exe"2⤵
- Sets file execution options in registry
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Checks processor information in registry
- Suspicious behavior: MapViewOfSection
- Suspicious behavior: RenamesItself
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2236 -
C:\Windows\SysWOW64\explorer.exeC:\Windows\SysWOW64\explorer.exe3⤵
- Modifies firewall policy service
- Sets file execution options in registry
- Checks BIOS information in registry
- Adds Run key to start application
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Checks processor information in registry
- Enumerates system info in registry
- Modifies Internet Explorer Protected Mode
- Modifies Internet Explorer Protected Mode Banner
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3748
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 188 -p 3748 -ip 37481⤵PID:4088