Analysis
- max time kernel
147s - max time network
154s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system - submitted
26/11/2022, 15:13
Static task
static1
Behavioral task
behavioral1
Sample
a0f5f093c51c5675902bb185daf2a3e2abdbc9d013284ff340708bd1788be3fd.exe
Resource
win7-20220812-en
windows7-x64
20 signatures
150 seconds
General
- Target a0f5f093c51c5675902bb185daf2a3e2abdbc9d013284ff340708bd1788be3fd.exe
- Size 256KB
- Sample221126-sl3ebada24
- SHA256 a0f5f093c51c5675902bb185daf2a3e2abdbc9d013284ff340708bd1788be3fd
- MD5 d40564ee078eb35e8ec2db7fa38c8ce2
- SHA1 4906cd24b4ab2e264fabaa921f3b9ac502882854
- SHA512 ffccbf624199ab7b3bf364031e33a53259f2fb3bfc7ffe20eaaab327f1d348adf426e9b095af0b9ed36dcbba36147912e6bb585eac9c9adbbe7c01480282328c
- SSDEEP 6144:biDVm76YSbgaUkKw0lpKDfeX4RW3Kcy1tGcmfPt:GDVm76YSbgarulpKDeDEOP
- 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\StandardProfile\EnableFirewall = "0" explorer.exe Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\PublicProfile explorer.exe 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 - Sets file execution options in registry 2 TTPs 4 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\5yw93a75s9omo17.exe a0f5f093c51c5675902bb185daf2a3e2abdbc9d013284ff340708bd1788be3fd.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\5yw93a75s9omo17.exe\DisableExceptionChainValidation a0f5f093c51c5675902bb185daf2a3e2abdbc9d013284ff340708bd1788be3fd.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 = "nwktorgzzs.exe" explorer.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-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\Windows Search 5.3.10 = "C:\\ProgramData\\Windows Search 5.3.10\\5yw93a75s9omo17.exe" explorer.exe Key created \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run explorer.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Windows Search 5.3.10 = "\"C:\\ProgramData\\Windows Search 5.3.10\\5yw93a75s9omo17.exe\"" explorer.exe Key created \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce explorer.exe -
description ioc Process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA a0f5f093c51c5675902bb185daf2a3e2abdbc9d013284ff340708bd1788be3fd.exe - Drops desktop.ini file(s) 2 IoCs
description ioc Process File created C:\ProgramData\Windows Search 5.3.10\desktop.ini a0f5f093c51c5675902bb185daf2a3e2abdbc9d013284ff340708bd1788be3fd.exe File opened for modification C:\ProgramData\Windows Search 5.3.10\desktop.ini a0f5f093c51c5675902bb185daf2a3e2abdbc9d013284ff340708bd1788be3fd.exe - Suspicious use of NtSetInformationThreadHideFromDebugger 8 IoCs
pid Process 1312 a0f5f093c51c5675902bb185daf2a3e2abdbc9d013284ff340708bd1788be3fd.exe 3600 explorer.exe 3600 explorer.exe 3600 explorer.exe 3600 explorer.exe 3600 explorer.exe 3600 explorer.exe 3600 explorer.exe - Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2432 set thread context of 1312 2432 a0f5f093c51c5675902bb185daf2a3e2abdbc9d013284ff340708bd1788be3fd.exe 81 - Program crash 1 IoCs
pid pid_target Process procid_target 4256 3600 WerFault.exe 82 - 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 a0f5f093c51c5675902bb185daf2a3e2abdbc9d013284ff340708bd1788be3fd.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString a0f5f093c51c5675902bb185daf2a3e2abdbc9d013284ff340708bd1788be3fd.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-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\1\2500 = "3" explorer.exe Set value (int) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\2\2500 = "3" explorer.exe Set value (int) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3\2500 = "3" explorer.exe Set value (int) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\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-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\Main\NoProtectedModeBanner = "1" explorer.exe -
description ioc Process Key created \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Internet Explorer\Main explorer.exe - Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 3600 explorer.exe 3600 explorer.exe 3600 explorer.exe 3600 explorer.exe - Suspicious behavior: MapViewOfSection 2 IoCs
pid Process 1312 a0f5f093c51c5675902bb185daf2a3e2abdbc9d013284ff340708bd1788be3fd.exe 1312 a0f5f093c51c5675902bb185daf2a3e2abdbc9d013284ff340708bd1788be3fd.exe - Suspicious behavior: RenamesItself 1 IoCs
pid Process 1312 a0f5f093c51c5675902bb185daf2a3e2abdbc9d013284ff340708bd1788be3fd.exe - Suspicious use of AdjustPrivilegeToken 27 IoCs
description pid Process Token: SeDebugPrivilege 1312 a0f5f093c51c5675902bb185daf2a3e2abdbc9d013284ff340708bd1788be3fd.exe Token: SeRestorePrivilege 1312 a0f5f093c51c5675902bb185daf2a3e2abdbc9d013284ff340708bd1788be3fd.exe Token: SeBackupPrivilege 1312 a0f5f093c51c5675902bb185daf2a3e2abdbc9d013284ff340708bd1788be3fd.exe Token: SeLoadDriverPrivilege 1312 a0f5f093c51c5675902bb185daf2a3e2abdbc9d013284ff340708bd1788be3fd.exe Token: SeCreatePagefilePrivilege 1312 a0f5f093c51c5675902bb185daf2a3e2abdbc9d013284ff340708bd1788be3fd.exe Token: SeShutdownPrivilege 1312 a0f5f093c51c5675902bb185daf2a3e2abdbc9d013284ff340708bd1788be3fd.exe Token: SeTakeOwnershipPrivilege 1312 a0f5f093c51c5675902bb185daf2a3e2abdbc9d013284ff340708bd1788be3fd.exe Token: SeChangeNotifyPrivilege 1312 a0f5f093c51c5675902bb185daf2a3e2abdbc9d013284ff340708bd1788be3fd.exe Token: SeCreateTokenPrivilege 1312 a0f5f093c51c5675902bb185daf2a3e2abdbc9d013284ff340708bd1788be3fd.exe Token: SeMachineAccountPrivilege 1312 a0f5f093c51c5675902bb185daf2a3e2abdbc9d013284ff340708bd1788be3fd.exe Token: SeSecurityPrivilege 1312 a0f5f093c51c5675902bb185daf2a3e2abdbc9d013284ff340708bd1788be3fd.exe Token: SeAssignPrimaryTokenPrivilege 1312 a0f5f093c51c5675902bb185daf2a3e2abdbc9d013284ff340708bd1788be3fd.exe Token: SeCreateGlobalPrivilege 1312 a0f5f093c51c5675902bb185daf2a3e2abdbc9d013284ff340708bd1788be3fd.exe Token: 33 1312 a0f5f093c51c5675902bb185daf2a3e2abdbc9d013284ff340708bd1788be3fd.exe Token: SeDebugPrivilege 3600 explorer.exe Token: SeRestorePrivilege 3600 explorer.exe Token: SeBackupPrivilege 3600 explorer.exe Token: SeLoadDriverPrivilege 3600 explorer.exe Token: SeCreatePagefilePrivilege 3600 explorer.exe Token: SeShutdownPrivilege 3600 explorer.exe Token: SeTakeOwnershipPrivilege 3600 explorer.exe Token: SeChangeNotifyPrivilege 3600 explorer.exe Token: SeCreateTokenPrivilege 3600 explorer.exe Token: SeMachineAccountPrivilege 3600 explorer.exe Token: SeSecurityPrivilege 3600 explorer.exe Token: SeAssignPrimaryTokenPrivilege 3600 explorer.exe Token: SeCreateGlobalPrivilege 3600 explorer.exe - Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 2432 a0f5f093c51c5675902bb185daf2a3e2abdbc9d013284ff340708bd1788be3fd.exe - Suspicious use of WriteProcessMemory 13 IoCs
description pid Process procid_target PID 2432 wrote to memory of 1312 2432 a0f5f093c51c5675902bb185daf2a3e2abdbc9d013284ff340708bd1788be3fd.exe 81 PID 2432 wrote to memory of 1312 2432 a0f5f093c51c5675902bb185daf2a3e2abdbc9d013284ff340708bd1788be3fd.exe 81 PID 2432 wrote to memory of 1312 2432 a0f5f093c51c5675902bb185daf2a3e2abdbc9d013284ff340708bd1788be3fd.exe 81 PID 2432 wrote to memory of 1312 2432 a0f5f093c51c5675902bb185daf2a3e2abdbc9d013284ff340708bd1788be3fd.exe 81 PID 2432 wrote to memory of 1312 2432 a0f5f093c51c5675902bb185daf2a3e2abdbc9d013284ff340708bd1788be3fd.exe 81 PID 2432 wrote to memory of 1312 2432 a0f5f093c51c5675902bb185daf2a3e2abdbc9d013284ff340708bd1788be3fd.exe 81 PID 2432 wrote to memory of 1312 2432 a0f5f093c51c5675902bb185daf2a3e2abdbc9d013284ff340708bd1788be3fd.exe 81 PID 2432 wrote to memory of 1312 2432 a0f5f093c51c5675902bb185daf2a3e2abdbc9d013284ff340708bd1788be3fd.exe 81 PID 2432 wrote to memory of 1312 2432 a0f5f093c51c5675902bb185daf2a3e2abdbc9d013284ff340708bd1788be3fd.exe 81 PID 2432 wrote to memory of 1312 2432 a0f5f093c51c5675902bb185daf2a3e2abdbc9d013284ff340708bd1788be3fd.exe 81 PID 1312 wrote to memory of 3600 1312 a0f5f093c51c5675902bb185daf2a3e2abdbc9d013284ff340708bd1788be3fd.exe 82 PID 1312 wrote to memory of 3600 1312 a0f5f093c51c5675902bb185daf2a3e2abdbc9d013284ff340708bd1788be3fd.exe 82 PID 1312 wrote to memory of 3600 1312 a0f5f093c51c5675902bb185daf2a3e2abdbc9d013284ff340708bd1788be3fd.exe 82
Processes
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C:\Users\Admin\AppData\Local\Temp\a0f5f093c51c5675902bb185daf2a3e2abdbc9d013284ff340708bd1788be3fd.exe"C:\Users\Admin\AppData\Local\Temp\a0f5f093c51c5675902bb185daf2a3e2abdbc9d013284ff340708bd1788be3fd.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2432 -
C:\Users\Admin\AppData\Local\Temp\a0f5f093c51c5675902bb185daf2a3e2abdbc9d013284ff340708bd1788be3fd.exe"C:\Users\Admin\AppData\Local\Temp\a0f5f093c51c5675902bb185daf2a3e2abdbc9d013284ff340708bd1788be3fd.exe"2⤵
- Sets file execution options in registry
- Checks whether UAC is enabled
- Drops desktop.ini file(s)
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Checks processor information in registry
- Suspicious behavior: MapViewOfSection
- Suspicious behavior: RenamesItself
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1312 -
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:3600 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3600 -s 11524⤵
- Program crash
PID:4256
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 3600 -ip 36001⤵PID:4576