Analysis
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max time kernel
192s -
max time network
208s -
platform
windows10-2004_x64 -
resource
win10v2004-20221111-en -
resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system -
submitted
05/12/2022, 10:11
Static task
static1
Behavioral task
behavioral1
Sample
8d6af8d6119e0cd80a299eddbaa016f605d1691a7fc3143875e9e4b2780d474d.exe
Resource
win7-20220812-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
8d6af8d6119e0cd80a299eddbaa016f605d1691a7fc3143875e9e4b2780d474d.exe
Resource
win10v2004-20221111-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
8d6af8d6119e0cd80a299eddbaa016f605d1691a7fc3143875e9e4b2780d474d.exe
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Size
268KB
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MD5
f802cf6e25407bba73adc7b41524f093
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SHA1
02f8ef281ebf0a60c5e7c47efd892bcfc034eeb9
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SHA256
8d6af8d6119e0cd80a299eddbaa016f605d1691a7fc3143875e9e4b2780d474d
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SHA512
bf8444852e34de423016073c484e2a2de47c196af67ba4ed66642891ff4973ad0758be369ad1caf76ae68a8352130f71c10cbdef76ac575786b6368ea2961d25
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SSDEEP
6144:yUwz2Eu+yV2PL9JhCNjKV6MG31luID8NLJTPxhMbmNPjiiSjl:yxMs0Nz8tJTZhMiif
Score
10/10
Malware Config
Signatures
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Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
description ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" 8d6af8d6119e0cd80a299eddbaa016f605d1691a7fc3143875e9e4b2780d474d.exe Set value (int) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" gouaz.exe -
Executes dropped EXE 1 IoCs
pid Process 3456 gouaz.exe -
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-1-5-21-2386679933-1492765628-3466841596-1000\Control Panel\International\Geo\Nation 8d6af8d6119e0cd80a299eddbaa016f605d1691a7fc3143875e9e4b2780d474d.exe -
Adds Run key to start application 2 TTPs 29 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\gouaz = "C:\\Users\\Admin\\gouaz.exe /d" gouaz.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\gouaz = "C:\\Users\\Admin\\gouaz.exe /q" gouaz.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\gouaz = "C:\\Users\\Admin\\gouaz.exe /w" gouaz.exe Key created \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Windows\CurrentVersion\Run\ gouaz.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\gouaz = "C:\\Users\\Admin\\gouaz.exe /r" gouaz.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\gouaz = "C:\\Users\\Admin\\gouaz.exe /p" gouaz.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\gouaz = "C:\\Users\\Admin\\gouaz.exe /g" gouaz.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\gouaz = "C:\\Users\\Admin\\gouaz.exe /k" gouaz.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\gouaz = "C:\\Users\\Admin\\gouaz.exe /j" gouaz.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\gouaz = "C:\\Users\\Admin\\gouaz.exe /z" gouaz.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\gouaz = "C:\\Users\\Admin\\gouaz.exe /f" gouaz.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\gouaz = "C:\\Users\\Admin\\gouaz.exe /a" gouaz.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\gouaz = "C:\\Users\\Admin\\gouaz.exe /x" gouaz.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\gouaz = "C:\\Users\\Admin\\gouaz.exe /i" gouaz.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\gouaz = "C:\\Users\\Admin\\gouaz.exe /o" gouaz.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\gouaz = "C:\\Users\\Admin\\gouaz.exe /b" gouaz.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\gouaz = "C:\\Users\\Admin\\gouaz.exe /c" 8d6af8d6119e0cd80a299eddbaa016f605d1691a7fc3143875e9e4b2780d474d.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\gouaz = "C:\\Users\\Admin\\gouaz.exe /t" gouaz.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\gouaz = "C:\\Users\\Admin\\gouaz.exe /c" gouaz.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\gouaz = "C:\\Users\\Admin\\gouaz.exe /v" gouaz.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\gouaz = "C:\\Users\\Admin\\gouaz.exe /s" gouaz.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\gouaz = "C:\\Users\\Admin\\gouaz.exe /y" gouaz.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\gouaz = "C:\\Users\\Admin\\gouaz.exe /u" gouaz.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\gouaz = "C:\\Users\\Admin\\gouaz.exe /e" gouaz.exe Key created \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Windows\CurrentVersion\Run\ 8d6af8d6119e0cd80a299eddbaa016f605d1691a7fc3143875e9e4b2780d474d.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\gouaz = "C:\\Users\\Admin\\gouaz.exe /m" gouaz.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\gouaz = "C:\\Users\\Admin\\gouaz.exe /l" gouaz.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\gouaz = "C:\\Users\\Admin\\gouaz.exe /h" gouaz.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\gouaz = "C:\\Users\\Admin\\gouaz.exe /n" gouaz.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4932 8d6af8d6119e0cd80a299eddbaa016f605d1691a7fc3143875e9e4b2780d474d.exe 4932 8d6af8d6119e0cd80a299eddbaa016f605d1691a7fc3143875e9e4b2780d474d.exe 3456 gouaz.exe 3456 gouaz.exe 3456 gouaz.exe 3456 gouaz.exe 3456 gouaz.exe 3456 gouaz.exe 3456 gouaz.exe 3456 gouaz.exe 3456 gouaz.exe 3456 gouaz.exe 3456 gouaz.exe 3456 gouaz.exe 3456 gouaz.exe 3456 gouaz.exe 3456 gouaz.exe 3456 gouaz.exe 3456 gouaz.exe 3456 gouaz.exe 3456 gouaz.exe 3456 gouaz.exe 3456 gouaz.exe 3456 gouaz.exe 3456 gouaz.exe 3456 gouaz.exe 3456 gouaz.exe 3456 gouaz.exe 3456 gouaz.exe 3456 gouaz.exe 3456 gouaz.exe 3456 gouaz.exe 3456 gouaz.exe 3456 gouaz.exe 3456 gouaz.exe 3456 gouaz.exe 3456 gouaz.exe 3456 gouaz.exe 3456 gouaz.exe 3456 gouaz.exe 3456 gouaz.exe 3456 gouaz.exe 3456 gouaz.exe 3456 gouaz.exe 3456 gouaz.exe 3456 gouaz.exe 3456 gouaz.exe 3456 gouaz.exe 3456 gouaz.exe 3456 gouaz.exe 3456 gouaz.exe 3456 gouaz.exe 3456 gouaz.exe 3456 gouaz.exe 3456 gouaz.exe 3456 gouaz.exe 3456 gouaz.exe 3456 gouaz.exe 3456 gouaz.exe 3456 gouaz.exe 3456 gouaz.exe 3456 gouaz.exe 3456 gouaz.exe 3456 gouaz.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 4932 8d6af8d6119e0cd80a299eddbaa016f605d1691a7fc3143875e9e4b2780d474d.exe 3456 gouaz.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 4932 wrote to memory of 3456 4932 8d6af8d6119e0cd80a299eddbaa016f605d1691a7fc3143875e9e4b2780d474d.exe 82 PID 4932 wrote to memory of 3456 4932 8d6af8d6119e0cd80a299eddbaa016f605d1691a7fc3143875e9e4b2780d474d.exe 82 PID 4932 wrote to memory of 3456 4932 8d6af8d6119e0cd80a299eddbaa016f605d1691a7fc3143875e9e4b2780d474d.exe 82
Processes
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C:\Users\Admin\AppData\Local\Temp\8d6af8d6119e0cd80a299eddbaa016f605d1691a7fc3143875e9e4b2780d474d.exe"C:\Users\Admin\AppData\Local\Temp\8d6af8d6119e0cd80a299eddbaa016f605d1691a7fc3143875e9e4b2780d474d.exe"1⤵
- Modifies visiblity of hidden/system files in Explorer
- Checks computer location settings
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4932 -
C:\Users\Admin\gouaz.exe"C:\Users\Admin\gouaz.exe"2⤵
- Modifies visiblity of hidden/system files in Explorer
- Executes dropped EXE
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
PID:3456
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
268KB
MD50e0fcad11e3aafbd4d0f07c735947a0f
SHA157d2bac3457cb7ec1914f21171462cd800014d6d
SHA25665d3fbb0ca060f1ca4d0728a1e8c0975189ea24759e3bcca86a785b28150aae9
SHA5122d9d7b15145203d6335e2b74f8b67feffc8c68565abfc7f9612e972608bde5fa99f7322385b97a937d81d59c01b914509c069b48df8b6bec0013ec6a8839ce15
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Filesize
268KB
MD50e0fcad11e3aafbd4d0f07c735947a0f
SHA157d2bac3457cb7ec1914f21171462cd800014d6d
SHA25665d3fbb0ca060f1ca4d0728a1e8c0975189ea24759e3bcca86a785b28150aae9
SHA5122d9d7b15145203d6335e2b74f8b67feffc8c68565abfc7f9612e972608bde5fa99f7322385b97a937d81d59c01b914509c069b48df8b6bec0013ec6a8839ce15