Analysis
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max time kernel
150s -
max time network
190s -
platform
windows7_x64 -
resource
win7-20220414-en -
submitted
08-07-2022 04:14
Static task
static1
Behavioral task
behavioral1
Sample
41e7b169c52c8fb5f12655e024aded045aa2c09b72b8e0125648d1f0dc9a7ae0.exe
Resource
win7-20220414-en
Behavioral task
behavioral2
Sample
41e7b169c52c8fb5f12655e024aded045aa2c09b72b8e0125648d1f0dc9a7ae0.exe
Resource
win10v2004-20220414-en
General
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Target
41e7b169c52c8fb5f12655e024aded045aa2c09b72b8e0125648d1f0dc9a7ae0.exe
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Size
520KB
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MD5
81501d955a942bc4b12b6fb1df160a3d
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SHA1
1787ad490d9fa9aa29ce16b89743a1ba215fa251
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SHA256
41e7b169c52c8fb5f12655e024aded045aa2c09b72b8e0125648d1f0dc9a7ae0
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SHA512
1b4a3b95099eb5add4a8c9aad47d380640c95b5a83ee462f60f509575cdd85a6f9e9c4c01d07d6e5c88a9dc58842557133450003f4b1b42e3bb508350126f033
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:
41e7b169c52c8fb5f12655e024aded045aa2c09b72b8e0125648d1f0dc9a7ae0.exeexplorer.exedescription ioc process Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\i173k1159cki51.exe 41e7b169c52c8fb5f12655e024aded045aa2c09b72b8e0125648d1f0dc9a7ae0.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\i173k1159cki51.exe\DisableExceptionChainValidation 41e7b169c52c8fb5f12655e024aded045aa2c09b72b8e0125648d1f0dc9a7ae0.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 = "zkynigxd.exe" explorer.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 Set value (str) \REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce\Windows Font Preloader Service = "C:\\ProgramData\\Windows Font Preloader Service\\i173k1159cki51.exe" explorer.exe Key created \REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run explorer.exe Set value (str) \REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows\CurrentVersion\Run\Windows Font Preloader Service = "\"C:\\ProgramData\\Windows Font Preloader Service\\i173k1159cki51.exe\"" explorer.exe Key created \REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce explorer.exe -
Processes:
41e7b169c52c8fb5f12655e024aded045aa2c09b72b8e0125648d1f0dc9a7ae0.exedescription ioc process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA 41e7b169c52c8fb5f12655e024aded045aa2c09b72b8e0125648d1f0dc9a7ae0.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 9 IoCs
Processes:
41e7b169c52c8fb5f12655e024aded045aa2c09b72b8e0125648d1f0dc9a7ae0.exeexplorer.exepid process 1648 41e7b169c52c8fb5f12655e024aded045aa2c09b72b8e0125648d1f0dc9a7ae0.exe 848 explorer.exe 848 explorer.exe 848 explorer.exe 848 explorer.exe 848 explorer.exe 848 explorer.exe 848 explorer.exe 848 explorer.exe -
Checks processor information in registry 2 TTPs 4 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
41e7b169c52c8fb5f12655e024aded045aa2c09b72b8e0125648d1f0dc9a7ae0.exeexplorer.exedescription ioc process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 41e7b169c52c8fb5f12655e024aded045aa2c09b72b8e0125648d1f0dc9a7ae0.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString 41e7b169c52c8fb5f12655e024aded045aa2c09b72b8e0125648d1f0dc9a7ae0.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
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-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\1\2500 = "3" explorer.exe Set value (int) \REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\2\2500 = "3" explorer.exe Set value (int) \REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3\2500 = "3" explorer.exe Set value (int) \REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\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-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Internet Explorer\Main\NoProtectedModeBanner = "1" explorer.exe -
Processes:
explorer.exedescription ioc process Key created \REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Internet Explorer\Main explorer.exe -
Suspicious behavior: EnumeratesProcesses 9 IoCs
Processes:
explorer.exepid process 848 explorer.exe 848 explorer.exe 848 explorer.exe 848 explorer.exe 848 explorer.exe 848 explorer.exe 848 explorer.exe 848 explorer.exe 848 explorer.exe -
Suspicious behavior: MapViewOfSection 4 IoCs
Processes:
41e7b169c52c8fb5f12655e024aded045aa2c09b72b8e0125648d1f0dc9a7ae0.exeexplorer.exepid process 1648 41e7b169c52c8fb5f12655e024aded045aa2c09b72b8e0125648d1f0dc9a7ae0.exe 1648 41e7b169c52c8fb5f12655e024aded045aa2c09b72b8e0125648d1f0dc9a7ae0.exe 848 explorer.exe 848 explorer.exe -
Suspicious behavior: RenamesItself 1 IoCs
Processes:
41e7b169c52c8fb5f12655e024aded045aa2c09b72b8e0125648d1f0dc9a7ae0.exepid process 1648 41e7b169c52c8fb5f12655e024aded045aa2c09b72b8e0125648d1f0dc9a7ae0.exe -
Suspicious use of AdjustPrivilegeToken 28 IoCs
Processes:
41e7b169c52c8fb5f12655e024aded045aa2c09b72b8e0125648d1f0dc9a7ae0.exeexplorer.exedescription pid process Token: SeDebugPrivilege 1648 41e7b169c52c8fb5f12655e024aded045aa2c09b72b8e0125648d1f0dc9a7ae0.exe Token: SeRestorePrivilege 1648 41e7b169c52c8fb5f12655e024aded045aa2c09b72b8e0125648d1f0dc9a7ae0.exe Token: SeBackupPrivilege 1648 41e7b169c52c8fb5f12655e024aded045aa2c09b72b8e0125648d1f0dc9a7ae0.exe Token: SeLoadDriverPrivilege 1648 41e7b169c52c8fb5f12655e024aded045aa2c09b72b8e0125648d1f0dc9a7ae0.exe Token: SeCreatePagefilePrivilege 1648 41e7b169c52c8fb5f12655e024aded045aa2c09b72b8e0125648d1f0dc9a7ae0.exe Token: SeShutdownPrivilege 1648 41e7b169c52c8fb5f12655e024aded045aa2c09b72b8e0125648d1f0dc9a7ae0.exe Token: SeTakeOwnershipPrivilege 1648 41e7b169c52c8fb5f12655e024aded045aa2c09b72b8e0125648d1f0dc9a7ae0.exe Token: SeChangeNotifyPrivilege 1648 41e7b169c52c8fb5f12655e024aded045aa2c09b72b8e0125648d1f0dc9a7ae0.exe Token: SeCreateTokenPrivilege 1648 41e7b169c52c8fb5f12655e024aded045aa2c09b72b8e0125648d1f0dc9a7ae0.exe Token: SeMachineAccountPrivilege 1648 41e7b169c52c8fb5f12655e024aded045aa2c09b72b8e0125648d1f0dc9a7ae0.exe Token: SeSecurityPrivilege 1648 41e7b169c52c8fb5f12655e024aded045aa2c09b72b8e0125648d1f0dc9a7ae0.exe Token: SeAssignPrimaryTokenPrivilege 1648 41e7b169c52c8fb5f12655e024aded045aa2c09b72b8e0125648d1f0dc9a7ae0.exe Token: SeCreateGlobalPrivilege 1648 41e7b169c52c8fb5f12655e024aded045aa2c09b72b8e0125648d1f0dc9a7ae0.exe Token: 33 1648 41e7b169c52c8fb5f12655e024aded045aa2c09b72b8e0125648d1f0dc9a7ae0.exe Token: SeDebugPrivilege 848 explorer.exe Token: SeRestorePrivilege 848 explorer.exe Token: SeBackupPrivilege 848 explorer.exe Token: SeLoadDriverPrivilege 848 explorer.exe Token: SeCreatePagefilePrivilege 848 explorer.exe Token: SeShutdownPrivilege 848 explorer.exe Token: SeTakeOwnershipPrivilege 848 explorer.exe Token: SeChangeNotifyPrivilege 848 explorer.exe Token: SeCreateTokenPrivilege 848 explorer.exe Token: SeMachineAccountPrivilege 848 explorer.exe Token: SeSecurityPrivilege 848 explorer.exe Token: SeAssignPrimaryTokenPrivilege 848 explorer.exe Token: SeCreateGlobalPrivilege 848 explorer.exe Token: 33 848 explorer.exe -
Suspicious use of WriteProcessMemory 19 IoCs
Processes:
41e7b169c52c8fb5f12655e024aded045aa2c09b72b8e0125648d1f0dc9a7ae0.exeexplorer.exedescription pid process target process PID 1648 wrote to memory of 848 1648 41e7b169c52c8fb5f12655e024aded045aa2c09b72b8e0125648d1f0dc9a7ae0.exe explorer.exe PID 1648 wrote to memory of 848 1648 41e7b169c52c8fb5f12655e024aded045aa2c09b72b8e0125648d1f0dc9a7ae0.exe explorer.exe PID 1648 wrote to memory of 848 1648 41e7b169c52c8fb5f12655e024aded045aa2c09b72b8e0125648d1f0dc9a7ae0.exe explorer.exe PID 1648 wrote to memory of 848 1648 41e7b169c52c8fb5f12655e024aded045aa2c09b72b8e0125648d1f0dc9a7ae0.exe explorer.exe PID 1648 wrote to memory of 848 1648 41e7b169c52c8fb5f12655e024aded045aa2c09b72b8e0125648d1f0dc9a7ae0.exe explorer.exe PID 1648 wrote to memory of 848 1648 41e7b169c52c8fb5f12655e024aded045aa2c09b72b8e0125648d1f0dc9a7ae0.exe explorer.exe PID 1648 wrote to memory of 848 1648 41e7b169c52c8fb5f12655e024aded045aa2c09b72b8e0125648d1f0dc9a7ae0.exe explorer.exe PID 848 wrote to memory of 1244 848 explorer.exe Dwm.exe PID 848 wrote to memory of 1244 848 explorer.exe Dwm.exe PID 848 wrote to memory of 1244 848 explorer.exe Dwm.exe PID 848 wrote to memory of 1244 848 explorer.exe Dwm.exe PID 848 wrote to memory of 1244 848 explorer.exe Dwm.exe PID 848 wrote to memory of 1244 848 explorer.exe Dwm.exe PID 848 wrote to memory of 1276 848 explorer.exe Explorer.EXE PID 848 wrote to memory of 1276 848 explorer.exe Explorer.EXE PID 848 wrote to memory of 1276 848 explorer.exe Explorer.EXE PID 848 wrote to memory of 1276 848 explorer.exe Explorer.EXE PID 848 wrote to memory of 1276 848 explorer.exe Explorer.EXE PID 848 wrote to memory of 1276 848 explorer.exe Explorer.EXE
Processes
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵PID:1276
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C:\Users\Admin\AppData\Local\Temp\41e7b169c52c8fb5f12655e024aded045aa2c09b72b8e0125648d1f0dc9a7ae0.exe"C:\Users\Admin\AppData\Local\Temp\41e7b169c52c8fb5f12655e024aded045aa2c09b72b8e0125648d1f0dc9a7ae0.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:1648 -
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:848
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C:\Windows\system32\Dwm.exe"C:\Windows\system32\Dwm.exe"1⤵PID:1244