Analysis
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max time kernel
118s -
max time network
97s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
18-08-2024 15:21
Static task
static1
Behavioral task
behavioral1
Sample
8790ca66f51b006d7326d7bf742f2e50N.exe
Resource
win7-20240708-en
Behavioral task
behavioral2
Sample
8790ca66f51b006d7326d7bf742f2e50N.exe
Resource
win10v2004-20240802-en
General
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Target
8790ca66f51b006d7326d7bf742f2e50N.exe
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Size
225KB
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MD5
8790ca66f51b006d7326d7bf742f2e50
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SHA1
4848142c0019bee264ee6c92de94c66ceace71ec
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SHA256
55113d18c872ce9d9ea3d0076cbd54ddf111a40ed61d1bcf63c94ff256ffd6fa
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SHA512
53a02ca057ed74b02049610bf26ec655308c278b0505ba8ba59107b476c8eba567f4c91062e75975263fc74f590a0d78ab6e2c6002a8659ea681e9bf03102026
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SSDEEP
6144:FA2P27yTAnKGw0hjFhSR/W11yAJ9v0pMtRCpYM:FATuTAnKGwUAW3ycQqgf
Malware Config
Signatures
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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Program crash 2 IoCs
Processes:
WerFault.exeWerFault.exepid pid_target process target process 4536 3092 WerFault.exe winver.exe 3752 3720 WerFault.exe 8790ca66f51b006d7326d7bf742f2e50N.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:
8790ca66f51b006d7326d7bf742f2e50N.exewinver.exedescription ioc process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 8790ca66f51b006d7326d7bf742f2e50N.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language winver.exe -
Modifies data under HKEY_USERS 1 IoCs
Processes:
svchost.exedescription ioc process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@%SystemRoot%\system32\hnetcfgclient.dll,-201 = "HNetCfg Client" svchost.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
8790ca66f51b006d7326d7bf742f2e50N.exepid process 3720 8790ca66f51b006d7326d7bf742f2e50N.exe 3720 8790ca66f51b006d7326d7bf742f2e50N.exe -
Suspicious use of AdjustPrivilegeToken 4 IoCs
Processes:
Explorer.EXEdescription pid process Token: SeShutdownPrivilege 3424 Explorer.EXE Token: SeCreatePagefilePrivilege 3424 Explorer.EXE Token: SeShutdownPrivilege 3424 Explorer.EXE Token: SeCreatePagefilePrivilege 3424 Explorer.EXE -
Suspicious use of FindShellTrayWindow 2 IoCs
Processes:
winver.exe8790ca66f51b006d7326d7bf742f2e50N.exepid process 3092 winver.exe 3720 8790ca66f51b006d7326d7bf742f2e50N.exe -
Suspicious use of UnmapMainImage 1 IoCs
Processes:
Explorer.EXEpid process 3424 Explorer.EXE -
Suspicious use of WriteProcessMemory 7 IoCs
Processes:
8790ca66f51b006d7326d7bf742f2e50N.exewinver.exedescription pid process target process PID 3720 wrote to memory of 3092 3720 8790ca66f51b006d7326d7bf742f2e50N.exe winver.exe PID 3720 wrote to memory of 3092 3720 8790ca66f51b006d7326d7bf742f2e50N.exe winver.exe PID 3720 wrote to memory of 3092 3720 8790ca66f51b006d7326d7bf742f2e50N.exe winver.exe PID 3720 wrote to memory of 3092 3720 8790ca66f51b006d7326d7bf742f2e50N.exe winver.exe PID 3092 wrote to memory of 3424 3092 winver.exe Explorer.EXE PID 3720 wrote to memory of 3424 3720 8790ca66f51b006d7326d7bf742f2e50N.exe Explorer.EXE PID 3720 wrote to memory of 2536 3720 8790ca66f51b006d7326d7bf742f2e50N.exe sihost.exe
Processes
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C:\Windows\system32\sihost.exesihost.exe1⤵PID:2536
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of UnmapMainImage
PID:3424 -
C:\Users\Admin\AppData\Local\Temp\8790ca66f51b006d7326d7bf742f2e50N.exe"C:\Users\Admin\AppData\Local\Temp\8790ca66f51b006d7326d7bf742f2e50N.exe"2⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:3720 -
C:\Windows\SysWOW64\winver.exewinver3⤵
- System Location Discovery: System Language Discovery
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:3092 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3092 -s 3004⤵
- Program crash
PID:4536 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3720 -s 9323⤵
- Program crash
PID:3752
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C:\Windows\System32\svchost.exeC:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s Netman1⤵
- Modifies data under HKEY_USERS
PID:4688
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3092 -ip 30921⤵PID:5020
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 3720 -ip 37201⤵PID:3748