Analysis
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max time kernel
143s -
max time network
144s -
platform
windows7_x64 -
resource
win7-20220718-en -
resource tags
arch:x64arch:x86image:win7-20220718-enlocale:en-usos:windows7-x64system -
submitted
25-07-2022 06:11
Static task
static1
Behavioral task
behavioral1
Sample
55feb9982c2a3b0406ea723b9a1e43a98d94cf47e2cc02bd9a1cb38fe8db8364.exe
Resource
win7-20220718-en
Behavioral task
behavioral2
Sample
55feb9982c2a3b0406ea723b9a1e43a98d94cf47e2cc02bd9a1cb38fe8db8364.exe
Resource
win10v2004-20220721-en
General
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Target
55feb9982c2a3b0406ea723b9a1e43a98d94cf47e2cc02bd9a1cb38fe8db8364.exe
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Size
721KB
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MD5
202e98702cc5417b9b3bc6582403aa0d
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SHA1
ed71810efae614ceeca100455f95951e6dc6fcf5
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SHA256
55feb9982c2a3b0406ea723b9a1e43a98d94cf47e2cc02bd9a1cb38fe8db8364
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SHA512
501fe4906d344e7e88dda97a8f6e6eb67b215bd853cb05f3d8502303ee20461c42b257640b34ea5985419f4676cef127f21da3cec61c1d899076401fe0766d2a
Malware Config
Signatures
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Modifies firewall policy service 2 TTPs 4 IoCs
Processes:
explorer.exedescription ioc process 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 Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\PublicProfile\EnableFirewall = "0" explorer.exe -
Sets file execution options in registry 2 TTPs 4 IoCs
Processes:
explorer.exe55feb9982c2a3b0406ea723b9a1e43a98d94cf47e2cc02bd9a1cb38fe8db8364.exedescription ioc process 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 = "mjou.exe" explorer.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\aiu15y39e5k5gsk.exe 55feb9982c2a3b0406ea723b9a1e43a98d94cf47e2cc02bd9a1cb38fe8db8364.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\aiu15y39e5k5gsk.exe\DisableExceptionChainValidation 55feb9982c2a3b0406ea723b9a1e43a98d94cf47e2cc02bd9a1cb38fe8db8364.exe -
Checks BIOS information in registry 2 TTPs 1 IoCs
BIOS information is often read in order to detect sandboxing environments.
Processes:
explorer.exedescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion explorer.exe -
Adds Run key to start application 2 TTPs 4 IoCs
Processes:
explorer.exedescription ioc process Key created \REGISTRY\USER\S-1-5-21-3762437355-3468409815-1164039494-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run explorer.exe Set value (str) \REGISTRY\USER\S-1-5-21-3762437355-3468409815-1164039494-1000\Software\Microsoft\Windows\CurrentVersion\Run\Windows Font Preloader Service = "\"C:\\ProgramData\\Windows Font Preloader Service\\aiu15y39e5k5gsk.exe\"" explorer.exe Key created \REGISTRY\USER\S-1-5-21-3762437355-3468409815-1164039494-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce explorer.exe Set value (str) \REGISTRY\USER\S-1-5-21-3762437355-3468409815-1164039494-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce\Windows Font Preloader Service = "C:\\ProgramData\\Windows Font Preloader Service\\aiu15y39e5k5gsk.exe" explorer.exe -
Processes:
55feb9982c2a3b0406ea723b9a1e43a98d94cf47e2cc02bd9a1cb38fe8db8364.exedescription ioc process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA 55feb9982c2a3b0406ea723b9a1e43a98d94cf47e2cc02bd9a1cb38fe8db8364.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 9 IoCs
Processes:
55feb9982c2a3b0406ea723b9a1e43a98d94cf47e2cc02bd9a1cb38fe8db8364.exeexplorer.exepid process 1252 55feb9982c2a3b0406ea723b9a1e43a98d94cf47e2cc02bd9a1cb38fe8db8364.exe 1876 explorer.exe 1876 explorer.exe 1876 explorer.exe 1876 explorer.exe 1876 explorer.exe 1876 explorer.exe 1876 explorer.exe 1876 explorer.exe -
Checks processor information in registry 2 TTPs 4 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
explorer.exe55feb9982c2a3b0406ea723b9a1e43a98d94cf47e2cc02bd9a1cb38fe8db8364.exedescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString explorer.exe Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 55feb9982c2a3b0406ea723b9a1e43a98d94cf47e2cc02bd9a1cb38fe8db8364.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString 55feb9982c2a3b0406ea723b9a1e43a98d94cf47e2cc02bd9a1cb38fe8db8364.exe Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 explorer.exe -
Enumerates system info in registry 2 TTPs 2 IoCs
Processes:
explorer.exedescription 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
Processes:
explorer.exedescription ioc process Set value (int) \REGISTRY\USER\S-1-5-21-3762437355-3468409815-1164039494-1000\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\1\2500 = "3" explorer.exe Set value (int) \REGISTRY\USER\S-1-5-21-3762437355-3468409815-1164039494-1000\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\2\2500 = "3" explorer.exe Set value (int) \REGISTRY\USER\S-1-5-21-3762437355-3468409815-1164039494-1000\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3\2500 = "3" explorer.exe Set value (int) \REGISTRY\USER\S-1-5-21-3762437355-3468409815-1164039494-1000\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\4\2500 = "3" explorer.exe -
Modifies Internet Explorer Protected Mode Banner 1 TTPs 1 IoCs
Processes:
explorer.exedescription ioc process Set value (int) \REGISTRY\USER\S-1-5-21-3762437355-3468409815-1164039494-1000\Software\Microsoft\Internet Explorer\Main\NoProtectedModeBanner = "1" explorer.exe -
Processes:
explorer.exedescription ioc process Key created \REGISTRY\USER\S-1-5-21-3762437355-3468409815-1164039494-1000\Software\Microsoft\Internet Explorer\Main explorer.exe -
Suspicious behavior: EnumeratesProcesses 11 IoCs
Processes:
explorer.exepid process 1876 explorer.exe 1876 explorer.exe 1876 explorer.exe 1876 explorer.exe 1876 explorer.exe 1876 explorer.exe 1876 explorer.exe 1876 explorer.exe 1876 explorer.exe 1876 explorer.exe 1876 explorer.exe -
Suspicious behavior: MapViewOfSection 4 IoCs
Processes:
55feb9982c2a3b0406ea723b9a1e43a98d94cf47e2cc02bd9a1cb38fe8db8364.exeexplorer.exepid process 1252 55feb9982c2a3b0406ea723b9a1e43a98d94cf47e2cc02bd9a1cb38fe8db8364.exe 1252 55feb9982c2a3b0406ea723b9a1e43a98d94cf47e2cc02bd9a1cb38fe8db8364.exe 1876 explorer.exe 1876 explorer.exe -
Suspicious behavior: RenamesItself 1 IoCs
Processes:
55feb9982c2a3b0406ea723b9a1e43a98d94cf47e2cc02bd9a1cb38fe8db8364.exepid process 1252 55feb9982c2a3b0406ea723b9a1e43a98d94cf47e2cc02bd9a1cb38fe8db8364.exe -
Suspicious use of AdjustPrivilegeToken 28 IoCs
Processes:
55feb9982c2a3b0406ea723b9a1e43a98d94cf47e2cc02bd9a1cb38fe8db8364.exeexplorer.exedescription pid process Token: SeDebugPrivilege 1252 55feb9982c2a3b0406ea723b9a1e43a98d94cf47e2cc02bd9a1cb38fe8db8364.exe Token: SeRestorePrivilege 1252 55feb9982c2a3b0406ea723b9a1e43a98d94cf47e2cc02bd9a1cb38fe8db8364.exe Token: SeBackupPrivilege 1252 55feb9982c2a3b0406ea723b9a1e43a98d94cf47e2cc02bd9a1cb38fe8db8364.exe Token: SeLoadDriverPrivilege 1252 55feb9982c2a3b0406ea723b9a1e43a98d94cf47e2cc02bd9a1cb38fe8db8364.exe Token: SeCreatePagefilePrivilege 1252 55feb9982c2a3b0406ea723b9a1e43a98d94cf47e2cc02bd9a1cb38fe8db8364.exe Token: SeShutdownPrivilege 1252 55feb9982c2a3b0406ea723b9a1e43a98d94cf47e2cc02bd9a1cb38fe8db8364.exe Token: SeTakeOwnershipPrivilege 1252 55feb9982c2a3b0406ea723b9a1e43a98d94cf47e2cc02bd9a1cb38fe8db8364.exe Token: SeChangeNotifyPrivilege 1252 55feb9982c2a3b0406ea723b9a1e43a98d94cf47e2cc02bd9a1cb38fe8db8364.exe Token: SeCreateTokenPrivilege 1252 55feb9982c2a3b0406ea723b9a1e43a98d94cf47e2cc02bd9a1cb38fe8db8364.exe Token: SeMachineAccountPrivilege 1252 55feb9982c2a3b0406ea723b9a1e43a98d94cf47e2cc02bd9a1cb38fe8db8364.exe Token: SeSecurityPrivilege 1252 55feb9982c2a3b0406ea723b9a1e43a98d94cf47e2cc02bd9a1cb38fe8db8364.exe Token: SeAssignPrimaryTokenPrivilege 1252 55feb9982c2a3b0406ea723b9a1e43a98d94cf47e2cc02bd9a1cb38fe8db8364.exe Token: SeCreateGlobalPrivilege 1252 55feb9982c2a3b0406ea723b9a1e43a98d94cf47e2cc02bd9a1cb38fe8db8364.exe Token: 33 1252 55feb9982c2a3b0406ea723b9a1e43a98d94cf47e2cc02bd9a1cb38fe8db8364.exe Token: SeDebugPrivilege 1876 explorer.exe Token: SeRestorePrivilege 1876 explorer.exe Token: SeBackupPrivilege 1876 explorer.exe Token: SeLoadDriverPrivilege 1876 explorer.exe Token: SeCreatePagefilePrivilege 1876 explorer.exe Token: SeShutdownPrivilege 1876 explorer.exe Token: SeTakeOwnershipPrivilege 1876 explorer.exe Token: SeChangeNotifyPrivilege 1876 explorer.exe Token: SeCreateTokenPrivilege 1876 explorer.exe Token: SeMachineAccountPrivilege 1876 explorer.exe Token: SeSecurityPrivilege 1876 explorer.exe Token: SeAssignPrimaryTokenPrivilege 1876 explorer.exe Token: SeCreateGlobalPrivilege 1876 explorer.exe Token: 33 1876 explorer.exe -
Suspicious use of WriteProcessMemory 19 IoCs
Processes:
55feb9982c2a3b0406ea723b9a1e43a98d94cf47e2cc02bd9a1cb38fe8db8364.exeexplorer.exedescription pid process target process PID 1252 wrote to memory of 1876 1252 55feb9982c2a3b0406ea723b9a1e43a98d94cf47e2cc02bd9a1cb38fe8db8364.exe explorer.exe PID 1252 wrote to memory of 1876 1252 55feb9982c2a3b0406ea723b9a1e43a98d94cf47e2cc02bd9a1cb38fe8db8364.exe explorer.exe PID 1252 wrote to memory of 1876 1252 55feb9982c2a3b0406ea723b9a1e43a98d94cf47e2cc02bd9a1cb38fe8db8364.exe explorer.exe PID 1252 wrote to memory of 1876 1252 55feb9982c2a3b0406ea723b9a1e43a98d94cf47e2cc02bd9a1cb38fe8db8364.exe explorer.exe PID 1252 wrote to memory of 1876 1252 55feb9982c2a3b0406ea723b9a1e43a98d94cf47e2cc02bd9a1cb38fe8db8364.exe explorer.exe PID 1252 wrote to memory of 1876 1252 55feb9982c2a3b0406ea723b9a1e43a98d94cf47e2cc02bd9a1cb38fe8db8364.exe explorer.exe PID 1252 wrote to memory of 1876 1252 55feb9982c2a3b0406ea723b9a1e43a98d94cf47e2cc02bd9a1cb38fe8db8364.exe explorer.exe PID 1876 wrote to memory of 1156 1876 explorer.exe Dwm.exe PID 1876 wrote to memory of 1156 1876 explorer.exe Dwm.exe PID 1876 wrote to memory of 1156 1876 explorer.exe Dwm.exe PID 1876 wrote to memory of 1156 1876 explorer.exe Dwm.exe PID 1876 wrote to memory of 1156 1876 explorer.exe Dwm.exe PID 1876 wrote to memory of 1156 1876 explorer.exe Dwm.exe PID 1876 wrote to memory of 1184 1876 explorer.exe Explorer.EXE PID 1876 wrote to memory of 1184 1876 explorer.exe Explorer.EXE PID 1876 wrote to memory of 1184 1876 explorer.exe Explorer.EXE PID 1876 wrote to memory of 1184 1876 explorer.exe Explorer.EXE PID 1876 wrote to memory of 1184 1876 explorer.exe Explorer.EXE PID 1876 wrote to memory of 1184 1876 explorer.exe Explorer.EXE
Processes
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵PID:1184
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C:\Users\Admin\AppData\Local\Temp\55feb9982c2a3b0406ea723b9a1e43a98d94cf47e2cc02bd9a1cb38fe8db8364.exe"C:\Users\Admin\AppData\Local\Temp\55feb9982c2a3b0406ea723b9a1e43a98d94cf47e2cc02bd9a1cb38fe8db8364.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:1252 -
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 behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1876
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C:\Windows\system32\Dwm.exe"C:\Windows\system32\Dwm.exe"1⤵PID:1156