Analysis
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max time kernel
114s -
max time network
119s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
23-08-2024 04:42
Static task
static1
Behavioral task
behavioral1
Sample
99c7f1fa19eb624a3fc213dc4a7bd0a0N.exe
Resource
win7-20240708-en
Behavioral task
behavioral2
Sample
99c7f1fa19eb624a3fc213dc4a7bd0a0N.exe
Resource
win10v2004-20240802-en
General
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Target
99c7f1fa19eb624a3fc213dc4a7bd0a0N.exe
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Size
237KB
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MD5
99c7f1fa19eb624a3fc213dc4a7bd0a0
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SHA1
ab746c25706ee614d03fff6390d22c37fb427262
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SHA256
a87d161b4cb878515226cd1751558825dd1f0d90d6543dbc01957f363069d81b
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SHA512
f410c8ef0120fc98a9ed2309b5f2d59507bdb62b64130d2ca1f433f808f4d95ed45f4f67263b97d767c8382959b47ac923dfb4abcbdde51994c0d03df4839615
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SSDEEP
6144:hA2P27yTAnKGw0hjFhSR/W1nyAJ9v0pMtRCpYQ:hATuTAnKGwUAWVycQqgj
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 4780 4460 WerFault.exe winver.exe 4068 116 WerFault.exe 99c7f1fa19eb624a3fc213dc4a7bd0a0N.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:
99c7f1fa19eb624a3fc213dc4a7bd0a0N.exewinver.exedescription ioc process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 99c7f1fa19eb624a3fc213dc4a7bd0a0N.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:
99c7f1fa19eb624a3fc213dc4a7bd0a0N.exepid process 116 99c7f1fa19eb624a3fc213dc4a7bd0a0N.exe 116 99c7f1fa19eb624a3fc213dc4a7bd0a0N.exe -
Suspicious use of AdjustPrivilegeToken 4 IoCs
Processes:
Explorer.EXEdescription pid process Token: SeShutdownPrivilege 3432 Explorer.EXE Token: SeCreatePagefilePrivilege 3432 Explorer.EXE Token: SeShutdownPrivilege 3432 Explorer.EXE Token: SeCreatePagefilePrivilege 3432 Explorer.EXE -
Suspicious use of FindShellTrayWindow 2 IoCs
Processes:
winver.exe99c7f1fa19eb624a3fc213dc4a7bd0a0N.exepid process 4460 winver.exe 116 99c7f1fa19eb624a3fc213dc4a7bd0a0N.exe -
Suspicious use of UnmapMainImage 1 IoCs
Processes:
Explorer.EXEpid process 3432 Explorer.EXE -
Suspicious use of WriteProcessMemory 7 IoCs
Processes:
99c7f1fa19eb624a3fc213dc4a7bd0a0N.exewinver.exedescription pid process target process PID 116 wrote to memory of 4460 116 99c7f1fa19eb624a3fc213dc4a7bd0a0N.exe winver.exe PID 116 wrote to memory of 4460 116 99c7f1fa19eb624a3fc213dc4a7bd0a0N.exe winver.exe PID 116 wrote to memory of 4460 116 99c7f1fa19eb624a3fc213dc4a7bd0a0N.exe winver.exe PID 116 wrote to memory of 4460 116 99c7f1fa19eb624a3fc213dc4a7bd0a0N.exe winver.exe PID 4460 wrote to memory of 3432 4460 winver.exe Explorer.EXE PID 116 wrote to memory of 3432 116 99c7f1fa19eb624a3fc213dc4a7bd0a0N.exe Explorer.EXE PID 116 wrote to memory of 3044 116 99c7f1fa19eb624a3fc213dc4a7bd0a0N.exe sihost.exe
Processes
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C:\Windows\system32\sihost.exesihost.exe1⤵PID:3044
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of UnmapMainImage
PID:3432 -
C:\Users\Admin\AppData\Local\Temp\99c7f1fa19eb624a3fc213dc4a7bd0a0N.exe"C:\Users\Admin\AppData\Local\Temp\99c7f1fa19eb624a3fc213dc4a7bd0a0N.exe"2⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:116 -
C:\Windows\SysWOW64\winver.exewinver3⤵
- System Location Discovery: System Language Discovery
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:4460 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4460 -s 3004⤵
- Program crash
PID:4780 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 116 -s 8563⤵
- Program crash
PID:4068
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C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=3668,i,8548254608087149642,10333768245962368401,262144 --variations-seed-version --mojo-platform-channel-handle=4348 /prefetch:81⤵PID:1496
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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 420 -p 4460 -ip 44601⤵PID:1896
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 116 -ip 1161⤵PID:4172