Analysis
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max time kernel
143s -
max time network
129s -
platform
windows7_x64 -
resource
win7-20230831-en -
resource tags
arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system -
submitted
11/10/2023, 05:28
Static task
static1
Behavioral task
behavioral1
Sample
82ff093b0eb7a9da56c7181e89efa7be6c95e28e233579ffed45914474110fe3.exe
Resource
win7-20230831-en
Behavioral task
behavioral2
Sample
82ff093b0eb7a9da56c7181e89efa7be6c95e28e233579ffed45914474110fe3.exe
Resource
win10v2004-20230915-en
General
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Target
82ff093b0eb7a9da56c7181e89efa7be6c95e28e233579ffed45914474110fe3.exe
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Size
199KB
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MD5
70b1d07024dfa7bcf66a07e8a6c8f618
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SHA1
07df32d67f587afee83e0ce309b5275dfbfe1bf0
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SHA256
82ff093b0eb7a9da56c7181e89efa7be6c95e28e233579ffed45914474110fe3
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SHA512
d6cc177fe8aaad8547399f75b21782d29cd85978dc49c90fb448124a9e887ff5b60feb919f9740ee28894ae9eeb1a12f1ce97de836ff130902abd4d20fe4f74d
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SSDEEP
6144:rBs27MMLyX5HXXXDTXXXOGqIII+pXXX5AYjKXXXDoXXXG6XXXxXXXLIIIEAkOCOT:rK20HXXX/XXXFqIIIcXXX5j2XXXcXXXW
Malware Config
Signatures
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Deletes itself 1 IoCs
pid Process 2228 cmd.exe -
Executes dropped EXE 1 IoCs
pid Process 1892 iuyhost.exe -
Drops file in Windows directory 2 IoCs
description ioc Process File created C:\Windows\Debug\iuyhost.exe 82ff093b0eb7a9da56c7181e89efa7be6c95e28e233579ffed45914474110fe3.exe File opened for modification C:\Windows\Debug\iuyhost.exe 82ff093b0eb7a9da56c7181e89efa7be6c95e28e233579ffed45914474110fe3.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 iuyhost.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz iuyhost.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeIncBasePriorityPrivilege 2208 82ff093b0eb7a9da56c7181e89efa7be6c95e28e233579ffed45914474110fe3.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 2208 wrote to memory of 2228 2208 82ff093b0eb7a9da56c7181e89efa7be6c95e28e233579ffed45914474110fe3.exe 29 PID 2208 wrote to memory of 2228 2208 82ff093b0eb7a9da56c7181e89efa7be6c95e28e233579ffed45914474110fe3.exe 29 PID 2208 wrote to memory of 2228 2208 82ff093b0eb7a9da56c7181e89efa7be6c95e28e233579ffed45914474110fe3.exe 29 PID 2208 wrote to memory of 2228 2208 82ff093b0eb7a9da56c7181e89efa7be6c95e28e233579ffed45914474110fe3.exe 29
Processes
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C:\Users\Admin\AppData\Local\Temp\82ff093b0eb7a9da56c7181e89efa7be6c95e28e233579ffed45914474110fe3.exe"C:\Users\Admin\AppData\Local\Temp\82ff093b0eb7a9da56c7181e89efa7be6c95e28e233579ffed45914474110fe3.exe"1⤵
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2208 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\82FF09~1.EXE > nul2⤵
- Deletes itself
PID:2228
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C:\Windows\Debug\iuyhost.exeC:\Windows\Debug\iuyhost.exe1⤵
- Executes dropped EXE
- Checks processor information in registry
PID:1892
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
199KB
MD54676d2cea73d1546ff1bba5743792141
SHA1b0c41a73c06481587d854aa8c4e8f45d838a39ef
SHA256e874103e56cc3c766c40d322c4eb2b9929335d9d3e493e04e1057a488250c32a
SHA512afef341c7c4c234852cd01d5dc08d7dfd95664c669b1a0693457c536deb340b8229ec93830d4bea5027e426e705835328497d2cbd6024e79bb9b52f94f869901