Analysis
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max time kernel
144s -
max time network
145s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
10-04-2024 16:07
Static task
static1
Behavioral task
behavioral1
Sample
555dca345a0206146b4291f64323e5d7250fa4ec481aaa975ffac62dcaca8492.exe
Resource
win7-20240220-en
Behavioral task
behavioral2
Sample
555dca345a0206146b4291f64323e5d7250fa4ec481aaa975ffac62dcaca8492.exe
Resource
win10v2004-20240226-en
General
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Target
555dca345a0206146b4291f64323e5d7250fa4ec481aaa975ffac62dcaca8492.exe
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Size
196KB
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MD5
7be5798c1c440b6595abdec53ded379a
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SHA1
9a94f5d871271dfc9f09cbcfd44d61d57063d353
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SHA256
555dca345a0206146b4291f64323e5d7250fa4ec481aaa975ffac62dcaca8492
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SHA512
4107a1e267303154136b2e4ec0cf3e7cf30ec7bb123d62f7d830f39d4ffa219701716a50a50289249c1ef8abdd792012f478898c8136a91df99160f72c72bdb8
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SSDEEP
6144:rBs27MMLyX5HXXXDTXXXOGqIII+pXXX5AYjKXXXDoXXXG6XXXxXXXLIIIEAkOCOL:rK20HXXX/XXXFqIIIcXXX5j2XXXcXXXa
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-1-5-21-983155329-280873152-1838004294-1000\Control Panel\International\Geo\Nation 555dca345a0206146b4291f64323e5d7250fa4ec481aaa975ffac62dcaca8492.exe -
Executes dropped EXE 1 IoCs
pid Process 2884 uyghost.exe -
Drops file in Windows directory 2 IoCs
description ioc Process File created C:\Windows\Debug\uyghost.exe 555dca345a0206146b4291f64323e5d7250fa4ec481aaa975ffac62dcaca8492.exe File opened for modification C:\Windows\Debug\uyghost.exe 555dca345a0206146b4291f64323e5d7250fa4ec481aaa975ffac62dcaca8492.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeIncBasePriorityPrivilege 2020 555dca345a0206146b4291f64323e5d7250fa4ec481aaa975ffac62dcaca8492.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 2020 wrote to memory of 3400 2020 555dca345a0206146b4291f64323e5d7250fa4ec481aaa975ffac62dcaca8492.exe 88 PID 2020 wrote to memory of 3400 2020 555dca345a0206146b4291f64323e5d7250fa4ec481aaa975ffac62dcaca8492.exe 88 PID 2020 wrote to memory of 3400 2020 555dca345a0206146b4291f64323e5d7250fa4ec481aaa975ffac62dcaca8492.exe 88
Processes
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C:\Users\Admin\AppData\Local\Temp\555dca345a0206146b4291f64323e5d7250fa4ec481aaa975ffac62dcaca8492.exe"C:\Users\Admin\AppData\Local\Temp\555dca345a0206146b4291f64323e5d7250fa4ec481aaa975ffac62dcaca8492.exe"1⤵
- Checks computer location settings
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2020 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\555DCA~1.EXE > nul2⤵PID:3400
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C:\Windows\Debug\uyghost.exeC:\Windows\Debug\uyghost.exe1⤵
- Executes dropped EXE
PID:2884
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
196KB
MD51659155b99a721e7be4b039deb49d03d
SHA1f6fbb94b93165d5efa198615af36134d3bd20071
SHA256e10d361d85fffb4b08f32efdf271b2e3aed395cf3e04cf17454acb2d89fd0604
SHA512d36f3f020781f67d596cf98a5c69821a1defe1c5893282d290e8479df3f95821f80f982e3142861e40900e0cb03a8d7b9b9fbb67a8e31d056ced058b0b55c661