Analysis
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max time kernel
141s -
max time network
130s -
platform
windows10-2004_x64 -
resource
win10v2004-20231023-en -
resource tags
arch:x64arch:x86image:win10v2004-20231023-enlocale:en-usos:windows10-2004-x64system -
submitted
24/10/2023, 01:32
Static task
static1
Behavioral task
behavioral1
Sample
369026ec14c5b36a4a4dc24088cb66c2c069f877dc9490879b86d56de7186751.exe
Resource
win7-20231020-en
Behavioral task
behavioral2
Sample
369026ec14c5b36a4a4dc24088cb66c2c069f877dc9490879b86d56de7186751.exe
Resource
win10v2004-20231023-en
General
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Target
369026ec14c5b36a4a4dc24088cb66c2c069f877dc9490879b86d56de7186751.exe
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Size
193KB
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MD5
fcc53520b179ba8f21b9607573012bc6
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SHA1
c0bd006d5e8632b8f810de4502e48726e0d2c029
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SHA256
369026ec14c5b36a4a4dc24088cb66c2c069f877dc9490879b86d56de7186751
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SHA512
6d0c707890dd514a5113b55ef5e0ad77b37f0e8819985957f327ed82c28766c91e879aedd0187eb21662761c02a569e7e0386e5ad87498b04036b01942faf56f
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SSDEEP
6144:rBs27MMLyX5HXXXDTXXXOGqIII+pXXX5AYjKXXXDoXXXG6XXXxXXXLIIIEAkOCO9:rK20HXXX/XXXFqIIIcXXX5j2XXXcXXXc
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-1-5-21-2231940048-779848787-2990559741-1000\Control Panel\International\Geo\Nation 369026ec14c5b36a4a4dc24088cb66c2c069f877dc9490879b86d56de7186751.exe -
Executes dropped EXE 1 IoCs
pid Process 2604 buchost.exe -
Drops file in Windows directory 2 IoCs
description ioc Process File created C:\Windows\Debug\buchost.exe 369026ec14c5b36a4a4dc24088cb66c2c069f877dc9490879b86d56de7186751.exe File opened for modification C:\Windows\Debug\buchost.exe 369026ec14c5b36a4a4dc24088cb66c2c069f877dc9490879b86d56de7186751.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 buchost.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz buchost.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeIncBasePriorityPrivilege 2352 369026ec14c5b36a4a4dc24088cb66c2c069f877dc9490879b86d56de7186751.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 2352 wrote to memory of 1616 2352 369026ec14c5b36a4a4dc24088cb66c2c069f877dc9490879b86d56de7186751.exe 81 PID 2352 wrote to memory of 1616 2352 369026ec14c5b36a4a4dc24088cb66c2c069f877dc9490879b86d56de7186751.exe 81 PID 2352 wrote to memory of 1616 2352 369026ec14c5b36a4a4dc24088cb66c2c069f877dc9490879b86d56de7186751.exe 81
Processes
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C:\Users\Admin\AppData\Local\Temp\369026ec14c5b36a4a4dc24088cb66c2c069f877dc9490879b86d56de7186751.exe"C:\Users\Admin\AppData\Local\Temp\369026ec14c5b36a4a4dc24088cb66c2c069f877dc9490879b86d56de7186751.exe"1⤵
- Checks computer location settings
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2352 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\369026~1.EXE > nul2⤵PID:1616
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C:\Windows\Debug\buchost.exeC:\Windows\Debug\buchost.exe1⤵
- Executes dropped EXE
- Checks processor information in registry
PID:2604
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
193KB
MD5fae5900d3c03ae504b53c0efec4fde1f
SHA12b1ac13d9e6ec1e5c53a25216ed59e46fc4233ba
SHA256f12bb08042f36cda5fabebccdb1e89535c4d20643bbbbf368a02dc288a0a8a1f
SHA512bcf6fc083d36e7b8ae378614b7a91b5cf768c245a2f3a96876806dc8f83a0a2d4067ffc42cedc88b2e82b1d35ad0676da4390a9a0528a8460cb407ba934e10f4
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Filesize
193KB
MD5fae5900d3c03ae504b53c0efec4fde1f
SHA12b1ac13d9e6ec1e5c53a25216ed59e46fc4233ba
SHA256f12bb08042f36cda5fabebccdb1e89535c4d20643bbbbf368a02dc288a0a8a1f
SHA512bcf6fc083d36e7b8ae378614b7a91b5cf768c245a2f3a96876806dc8f83a0a2d4067ffc42cedc88b2e82b1d35ad0676da4390a9a0528a8460cb407ba934e10f4