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Analysis
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max time kernel
147s -
max time network
140s -
platform
windows7_x64 -
resource
win7-20230831-en -
resource tags
arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system -
submitted
11/10/2023, 05:25
Static task
static1
Behavioral task
behavioral1
Sample
c3cd752cc8c2a83189d4f05cd0bdeef6b8252fb7b2223336af6296dacbacee43.exe
Resource
win7-20230831-en
Behavioral task
behavioral2
Sample
c3cd752cc8c2a83189d4f05cd0bdeef6b8252fb7b2223336af6296dacbacee43.exe
Resource
win10v2004-20230915-en
General
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Target
c3cd752cc8c2a83189d4f05cd0bdeef6b8252fb7b2223336af6296dacbacee43.exe
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Size
192KB
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MD5
712178dd39c6381a5c36c23658dcaad4
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SHA1
e00af9b1f82cf038b2596e3e35171b6cb5393e59
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SHA256
c3cd752cc8c2a83189d4f05cd0bdeef6b8252fb7b2223336af6296dacbacee43
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SHA512
9e7ad4d633c665b831ed7619bcad95a04debec4d05f31bcb3136f31474b802113b10306c2b4be3427eef0e9542b60fef58c7c3d5c25d0bc13cbac0d29f7147f7
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SSDEEP
6144:rBs27MMLyX5HXXXDTXXXOGqIII+pXXX5AYjKXXXDoXXXG6XXXxXXXLIIIEAkOCOY:rK20HXXX/XXXFqIIIcXXX5j2XXXcXXXR
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
pid Process 1068 jaohost.exe -
Drops file in Windows directory 2 IoCs
description ioc Process File created C:\Windows\Debug\jaohost.exe c3cd752cc8c2a83189d4f05cd0bdeef6b8252fb7b2223336af6296dacbacee43.exe File opened for modification C:\Windows\Debug\jaohost.exe c3cd752cc8c2a83189d4f05cd0bdeef6b8252fb7b2223336af6296dacbacee43.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 jaohost.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz jaohost.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeIncBasePriorityPrivilege 2920 c3cd752cc8c2a83189d4f05cd0bdeef6b8252fb7b2223336af6296dacbacee43.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 2920 wrote to memory of 2800 2920 c3cd752cc8c2a83189d4f05cd0bdeef6b8252fb7b2223336af6296dacbacee43.exe 31 PID 2920 wrote to memory of 2800 2920 c3cd752cc8c2a83189d4f05cd0bdeef6b8252fb7b2223336af6296dacbacee43.exe 31 PID 2920 wrote to memory of 2800 2920 c3cd752cc8c2a83189d4f05cd0bdeef6b8252fb7b2223336af6296dacbacee43.exe 31 PID 2920 wrote to memory of 2800 2920 c3cd752cc8c2a83189d4f05cd0bdeef6b8252fb7b2223336af6296dacbacee43.exe 31
Processes
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C:\Users\Admin\AppData\Local\Temp\c3cd752cc8c2a83189d4f05cd0bdeef6b8252fb7b2223336af6296dacbacee43.exe"C:\Users\Admin\AppData\Local\Temp\c3cd752cc8c2a83189d4f05cd0bdeef6b8252fb7b2223336af6296dacbacee43.exe"1⤵
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2920 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\C3CD75~1.EXE > nul2⤵PID:2800
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C:\Windows\Debug\jaohost.exeC:\Windows\Debug\jaohost.exe1⤵
- Executes dropped EXE
- Checks processor information in registry
PID:1068
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
192KB
MD5e1c6b0a48d35a5aa21ed02a42d220870
SHA144b7e702116e28d69bc92dfeb6548b508e601143
SHA256936551c8cda2baa23b7c0bf63b1675bad5a09e618ea1f3145eb1cfe2fc2eff7a
SHA512ec0890b1c899e5118609d04e52f07a55b229799fec53ccf8343617203fa90b7010851d100d9be67fb39c92ef0699c0d5699e37522e801622dcd12a79a4010977
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Filesize
192KB
MD5e1c6b0a48d35a5aa21ed02a42d220870
SHA144b7e702116e28d69bc92dfeb6548b508e601143
SHA256936551c8cda2baa23b7c0bf63b1675bad5a09e618ea1f3145eb1cfe2fc2eff7a
SHA512ec0890b1c899e5118609d04e52f07a55b229799fec53ccf8343617203fa90b7010851d100d9be67fb39c92ef0699c0d5699e37522e801622dcd12a79a4010977