Analysis
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max time kernel
118s -
max time network
120s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
19-08-2024 07:08
Behavioral task
behavioral1
Sample
86be8e9c11dcf4a3c9054bbd48e5f380N.exe
Resource
win7-20240705-en
General
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Target
86be8e9c11dcf4a3c9054bbd48e5f380N.exe
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Size
45KB
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MD5
86be8e9c11dcf4a3c9054bbd48e5f380
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SHA1
74f6eded72e56d654bdcb5ec17c2efd2b9fef3fe
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SHA256
19a66fa8aea2a47d1994bd913229c10e2e99f66d44b061415243c42cbc8fbda1
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SHA512
18801a6a6d7de01854289ad57bb31bf50d5b71f74d8c4c786abe195c3864b8f43c5254d41a603bc486bf1fbdea8bff674828d235a94077306f0110af5b5ef785
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SSDEEP
768:UhP0kDE9N5dCA8J7VHXdrIniQaBTT+QQ+r1n4K8+C9TtIuCjaqUODvJVQ2f:YsWE9N5dFu53dsniQaB/xZ14n7zIF+qr
Malware Config
Signatures
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Processes:
resource yara_rule behavioral2/memory/4460-0-0x0000000000400000-0x000000000041D000-memory.dmp upx -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
winver.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-523280732-2327480845-3730041215-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\FC94FCFE = "C:\\Users\\Admin\\AppData\\Roaming\\FC94FCFE\\bin.exe" winver.exe -
Program crash 1 IoCs
Processes:
WerFault.exepid pid_target process target process 1500 4272 WerFault.exe winver.exe -
System Location Discovery: System Language Discovery 1 TTPs 2 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
Processes:
winver.exe86be8e9c11dcf4a3c9054bbd48e5f380N.exedescription ioc process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language winver.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 86be8e9c11dcf4a3c9054bbd48e5f380N.exe -
Modifies registry class 1 IoCs
Processes:
Explorer.EXEdescription ioc process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\ Explorer.EXE -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
winver.exepid process 4272 winver.exe 4272 winver.exe -
Suspicious use of AdjustPrivilegeToken 14 IoCs
Processes:
Explorer.EXEdescription pid process Token: SeShutdownPrivilege 3456 Explorer.EXE Token: SeCreatePagefilePrivilege 3456 Explorer.EXE Token: SeShutdownPrivilege 3456 Explorer.EXE Token: SeCreatePagefilePrivilege 3456 Explorer.EXE Token: SeShutdownPrivilege 3456 Explorer.EXE Token: SeCreatePagefilePrivilege 3456 Explorer.EXE Token: SeShutdownPrivilege 3456 Explorer.EXE Token: SeCreatePagefilePrivilege 3456 Explorer.EXE Token: SeShutdownPrivilege 3456 Explorer.EXE Token: SeCreatePagefilePrivilege 3456 Explorer.EXE Token: SeShutdownPrivilege 3456 Explorer.EXE Token: SeCreatePagefilePrivilege 3456 Explorer.EXE Token: SeShutdownPrivilege 3456 Explorer.EXE Token: SeCreatePagefilePrivilege 3456 Explorer.EXE -
Suspicious use of FindShellTrayWindow 3 IoCs
Processes:
winver.exeExplorer.EXEpid process 4272 winver.exe 3456 Explorer.EXE 3456 Explorer.EXE -
Suspicious use of UnmapMainImage 1 IoCs
Processes:
Explorer.EXEpid process 3456 Explorer.EXE -
Suspicious use of WriteProcessMemory 6 IoCs
Processes:
86be8e9c11dcf4a3c9054bbd48e5f380N.exewinver.exedescription pid process target process PID 4460 wrote to memory of 4272 4460 86be8e9c11dcf4a3c9054bbd48e5f380N.exe winver.exe PID 4460 wrote to memory of 4272 4460 86be8e9c11dcf4a3c9054bbd48e5f380N.exe winver.exe PID 4460 wrote to memory of 4272 4460 86be8e9c11dcf4a3c9054bbd48e5f380N.exe winver.exe PID 4460 wrote to memory of 4272 4460 86be8e9c11dcf4a3c9054bbd48e5f380N.exe winver.exe PID 4272 wrote to memory of 3456 4272 winver.exe Explorer.EXE PID 4272 wrote to memory of 2636 4272 winver.exe sihost.exe
Processes
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C:\Windows\system32\sihost.exesihost.exe1⤵PID:2636
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of UnmapMainImage
PID:3456 -
C:\Users\Admin\AppData\Local\Temp\86be8e9c11dcf4a3c9054bbd48e5f380N.exe"C:\Users\Admin\AppData\Local\Temp\86be8e9c11dcf4a3c9054bbd48e5f380N.exe"2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4460 -
C:\Windows\SysWOW64\winver.exewinver3⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:4272 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4272 -s 3524⤵
- Program crash
PID:1500
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 4272 -ip 42721⤵PID:2028