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Analysis
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max time kernel
142s -
max time network
133s -
platform
windows7_x64 -
resource
win7-20230831-en -
resource tags
arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system -
submitted
12/10/2023, 17:57
Static task
static1
Behavioral task
behavioral1
Sample
2ec7cb891a4d2ad85fbf43e19298f7103c427e7244a4909b72d8c7ff65ac3193.exe
Resource
win7-20230831-en
Behavioral task
behavioral2
Sample
2ec7cb891a4d2ad85fbf43e19298f7103c427e7244a4909b72d8c7ff65ac3193.exe
Resource
win10v2004-20230915-en
General
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Target
2ec7cb891a4d2ad85fbf43e19298f7103c427e7244a4909b72d8c7ff65ac3193.exe
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Size
199KB
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MD5
60589adec8738cc714cf8a6fb2917152
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SHA1
20bd11d82c6ad9862e3f3240741f842123617209
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SHA256
2ec7cb891a4d2ad85fbf43e19298f7103c427e7244a4909b72d8c7ff65ac3193
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SHA512
5e9a8c06be800ee964e4a8cc0a844ee857b2029e2cb39566c397b72e27f0e8f3f95d403f57584213f25c05c9da8de9ce00e9186f907e7065752cedd76a1a4750
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SSDEEP
6144:rBs27MMLyX5HXXXDTXXXOGqIII+pXXX5AYjKXXXDoXXXG6XXXxXXXLIIIEAkOCOl:rK20HXXX/XXXFqIIIcXXX5j2XXXcXXX0
Malware Config
Signatures
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Deletes itself 1 IoCs
pid Process 2900 cmd.exe -
Executes dropped EXE 1 IoCs
pid Process 2088 zskhost.exe -
Drops file in Windows directory 2 IoCs
description ioc Process File created C:\Windows\Debug\zskhost.exe 2ec7cb891a4d2ad85fbf43e19298f7103c427e7244a4909b72d8c7ff65ac3193.exe File opened for modification C:\Windows\Debug\zskhost.exe 2ec7cb891a4d2ad85fbf43e19298f7103c427e7244a4909b72d8c7ff65ac3193.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 value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz zskhost.exe Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 zskhost.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeIncBasePriorityPrivilege 2984 2ec7cb891a4d2ad85fbf43e19298f7103c427e7244a4909b72d8c7ff65ac3193.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 2984 wrote to memory of 2900 2984 2ec7cb891a4d2ad85fbf43e19298f7103c427e7244a4909b72d8c7ff65ac3193.exe 29 PID 2984 wrote to memory of 2900 2984 2ec7cb891a4d2ad85fbf43e19298f7103c427e7244a4909b72d8c7ff65ac3193.exe 29 PID 2984 wrote to memory of 2900 2984 2ec7cb891a4d2ad85fbf43e19298f7103c427e7244a4909b72d8c7ff65ac3193.exe 29 PID 2984 wrote to memory of 2900 2984 2ec7cb891a4d2ad85fbf43e19298f7103c427e7244a4909b72d8c7ff65ac3193.exe 29
Processes
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C:\Users\Admin\AppData\Local\Temp\2ec7cb891a4d2ad85fbf43e19298f7103c427e7244a4909b72d8c7ff65ac3193.exe"C:\Users\Admin\AppData\Local\Temp\2ec7cb891a4d2ad85fbf43e19298f7103c427e7244a4909b72d8c7ff65ac3193.exe"1⤵
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2984 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\2EC7CB~1.EXE > nul2⤵
- Deletes itself
PID:2900
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C:\Windows\Debug\zskhost.exeC:\Windows\Debug\zskhost.exe1⤵
- Executes dropped EXE
- Checks processor information in registry
PID:2088
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
199KB
MD551d36698ed0c937a1f5737f35cb2e07c
SHA17707f719c8e7b75ac1f18de538baaccba505b51b
SHA2565c3095a1164584ebefcd33dc28f9c707f8ec60093449cdaba80d4264bf5d2314
SHA5122edec8697430313f5ace6e85162d0098b0d1b1ca748c1ab6dc375ceeff61e5acacd93ff155d3404c8b36ca229e2103d89d184f61455e29849c5d72fcf17a7d5e