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Analysis
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max time kernel
156s -
max time network
160s -
platform
windows10-2004_x64 -
resource
win10v2004-20230915-en -
resource tags
arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system -
submitted
12/10/2023, 12:02
Static task
static1
Behavioral task
behavioral1
Sample
499573f6ee88bc297a153dd1efa9860cd0a418c873b6cc3ccda469d82dea302d.exe
Resource
win7-20230831-en
Behavioral task
behavioral2
Sample
499573f6ee88bc297a153dd1efa9860cd0a418c873b6cc3ccda469d82dea302d.exe
Resource
win10v2004-20230915-en
General
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Target
499573f6ee88bc297a153dd1efa9860cd0a418c873b6cc3ccda469d82dea302d.exe
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Size
198KB
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MD5
2c8e1985e6d94736175ad40b99b5c834
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SHA1
ae275f822db435ade867d25c60a8edbdf0065c05
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SHA256
499573f6ee88bc297a153dd1efa9860cd0a418c873b6cc3ccda469d82dea302d
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SHA512
85a6de7fd3f0804541cfe1a8024c7cf1a6ab3647c2502ad253490ce8e2f5df07a06745a1f877ee3f7b8c92754c8f8fcc360a86b53deaa64b3e88f506073d69aa
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SSDEEP
6144:rBs27MMLyX5HXXXDTXXXOGqIII+pXXX5AYjKXXXDoXXXG6XXXxXXXLIIIEAkOCOs:rK20HXXX/XXXFqIIIcXXX5j2XXXcXXXp
Malware Config
Signatures
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-1926387074-3400613176-3566796709-1000\Control Panel\International\Geo\Nation 499573f6ee88bc297a153dd1efa9860cd0a418c873b6cc3ccda469d82dea302d.exe -
Executes dropped EXE 1 IoCs
pid Process 2824 mewhost.exe -
Drops file in Windows directory 2 IoCs
description ioc Process File created C:\Windows\Debug\mewhost.exe 499573f6ee88bc297a153dd1efa9860cd0a418c873b6cc3ccda469d82dea302d.exe File opened for modification C:\Windows\Debug\mewhost.exe 499573f6ee88bc297a153dd1efa9860cd0a418c873b6cc3ccda469d82dea302d.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 mewhost.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz mewhost.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeIncBasePriorityPrivilege 1756 499573f6ee88bc297a153dd1efa9860cd0a418c873b6cc3ccda469d82dea302d.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 1756 wrote to memory of 3016 1756 499573f6ee88bc297a153dd1efa9860cd0a418c873b6cc3ccda469d82dea302d.exe 84 PID 1756 wrote to memory of 3016 1756 499573f6ee88bc297a153dd1efa9860cd0a418c873b6cc3ccda469d82dea302d.exe 84 PID 1756 wrote to memory of 3016 1756 499573f6ee88bc297a153dd1efa9860cd0a418c873b6cc3ccda469d82dea302d.exe 84
Processes
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C:\Users\Admin\AppData\Local\Temp\499573f6ee88bc297a153dd1efa9860cd0a418c873b6cc3ccda469d82dea302d.exe"C:\Users\Admin\AppData\Local\Temp\499573f6ee88bc297a153dd1efa9860cd0a418c873b6cc3ccda469d82dea302d.exe"1⤵
- Checks computer location settings
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1756 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\499573~1.EXE > nul2⤵PID:3016
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C:\Windows\Debug\mewhost.exeC:\Windows\Debug\mewhost.exe1⤵
- Executes dropped EXE
- Checks processor information in registry
PID:2824
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
198KB
MD5101232aa38ab30e833f3a4793a39e591
SHA12c85135d8392e770950931dace34ef3b71b244a1
SHA256863bfda02538cac5fc64023f7c2ce7f0eca12de3deea10133bada28feadbe535
SHA51222efa2d9edfcb0fbec877dc306cad620cc8f94ad0c7364425bdea986e5685a33a90b12258d21a2bf85f4b3fee6ef499b83d023490e7cc4408001d360bee1063b
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Filesize
198KB
MD5101232aa38ab30e833f3a4793a39e591
SHA12c85135d8392e770950931dace34ef3b71b244a1
SHA256863bfda02538cac5fc64023f7c2ce7f0eca12de3deea10133bada28feadbe535
SHA51222efa2d9edfcb0fbec877dc306cad620cc8f94ad0c7364425bdea986e5685a33a90b12258d21a2bf85f4b3fee6ef499b83d023490e7cc4408001d360bee1063b