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Analysis
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max time kernel
151s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20220901-en -
resource tags
arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system -
submitted
29/11/2022, 03:05
Static task
static1
Behavioral task
behavioral1
Sample
ef6e73126215aa762d31060d8e32dad6b2b64e6234a2346a25fc7ded4db0ad95.exe
Resource
win7-20220812-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
ef6e73126215aa762d31060d8e32dad6b2b64e6234a2346a25fc7ded4db0ad95.exe
Resource
win10v2004-20220901-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
ef6e73126215aa762d31060d8e32dad6b2b64e6234a2346a25fc7ded4db0ad95.exe
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Size
252KB
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MD5
e2e6f9046f5dcf8def8dc67e55817396
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SHA1
6ccd67be2c847889645f677624756850ec1c8e23
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SHA256
ef6e73126215aa762d31060d8e32dad6b2b64e6234a2346a25fc7ded4db0ad95
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SHA512
4d59c9c006eedc7dc013edd2fbea452ae28dfdc700b6ae1ff1c5046aeeebcd43b2803d00cc29cbd655d3f46692becf4b5d236da1820c20f6d0aba8fc7b2dac7e
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SSDEEP
3072:VrAcYx7La/sWvZ0OgRqTAJcLGGO/xuiEyJeOOeGs5oxnkNzQKGjv9:Vr3Fx/ZLA4PmG6dS
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-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" ef6e73126215aa762d31060d8e32dad6b2b64e6234a2346a25fc7ded4db0ad95.exe Set value (int) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" yoauhan.exe -
Executes dropped EXE 1 IoCs
pid Process 212 yoauhan.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-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation ef6e73126215aa762d31060d8e32dad6b2b64e6234a2346a25fc7ded4db0ad95.exe -
Adds Run key to start application 2 TTPs 54 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yoauhan = "C:\\Users\\Admin\\yoauhan.exe /a" yoauhan.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yoauhan = "C:\\Users\\Admin\\yoauhan.exe /y" yoauhan.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yoauhan = "C:\\Users\\Admin\\yoauhan.exe /s" yoauhan.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yoauhan = "C:\\Users\\Admin\\yoauhan.exe /m" yoauhan.exe Key created \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Windows\CurrentVersion\Run\ yoauhan.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yoauhan = "C:\\Users\\Admin\\yoauhan.exe /j" yoauhan.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yoauhan = "C:\\Users\\Admin\\yoauhan.exe /b" yoauhan.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yoauhan = "C:\\Users\\Admin\\yoauhan.exe /U" yoauhan.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yoauhan = "C:\\Users\\Admin\\yoauhan.exe /i" yoauhan.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yoauhan = "C:\\Users\\Admin\\yoauhan.exe /M" yoauhan.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yoauhan = "C:\\Users\\Admin\\yoauhan.exe /u" yoauhan.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yoauhan = "C:\\Users\\Admin\\yoauhan.exe /D" yoauhan.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yoauhan = "C:\\Users\\Admin\\yoauhan.exe /k" yoauhan.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yoauhan = "C:\\Users\\Admin\\yoauhan.exe /z" yoauhan.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yoauhan = "C:\\Users\\Admin\\yoauhan.exe /r" yoauhan.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yoauhan = "C:\\Users\\Admin\\yoauhan.exe /P" yoauhan.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yoauhan = "C:\\Users\\Admin\\yoauhan.exe /x" yoauhan.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yoauhan = "C:\\Users\\Admin\\yoauhan.exe /H" yoauhan.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yoauhan = "C:\\Users\\Admin\\yoauhan.exe /V" yoauhan.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yoauhan = "C:\\Users\\Admin\\yoauhan.exe /h" yoauhan.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yoauhan = "C:\\Users\\Admin\\yoauhan.exe /K" yoauhan.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yoauhan = "C:\\Users\\Admin\\yoauhan.exe /I" yoauhan.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yoauhan = "C:\\Users\\Admin\\yoauhan.exe /l" yoauhan.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yoauhan = "C:\\Users\\Admin\\yoauhan.exe /e" yoauhan.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yoauhan = "C:\\Users\\Admin\\yoauhan.exe /C" yoauhan.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yoauhan = "C:\\Users\\Admin\\yoauhan.exe /J" yoauhan.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yoauhan = "C:\\Users\\Admin\\yoauhan.exe /F" yoauhan.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yoauhan = "C:\\Users\\Admin\\yoauhan.exe /Z" yoauhan.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yoauhan = "C:\\Users\\Admin\\yoauhan.exe /o" yoauhan.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yoauhan = "C:\\Users\\Admin\\yoauhan.exe /f" yoauhan.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yoauhan = "C:\\Users\\Admin\\yoauhan.exe /Q" yoauhan.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yoauhan = "C:\\Users\\Admin\\yoauhan.exe /L" yoauhan.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yoauhan = "C:\\Users\\Admin\\yoauhan.exe /O" yoauhan.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yoauhan = "C:\\Users\\Admin\\yoauhan.exe /Y" yoauhan.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yoauhan = "C:\\Users\\Admin\\yoauhan.exe /S" yoauhan.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yoauhan = "C:\\Users\\Admin\\yoauhan.exe /p" yoauhan.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yoauhan = "C:\\Users\\Admin\\yoauhan.exe /G" yoauhan.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yoauhan = "C:\\Users\\Admin\\yoauhan.exe /R" yoauhan.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yoauhan = "C:\\Users\\Admin\\yoauhan.exe /n" yoauhan.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yoauhan = "C:\\Users\\Admin\\yoauhan.exe /E" yoauhan.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yoauhan = "C:\\Users\\Admin\\yoauhan.exe /B" yoauhan.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yoauhan = "C:\\Users\\Admin\\yoauhan.exe /A" yoauhan.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yoauhan = "C:\\Users\\Admin\\yoauhan.exe /L" ef6e73126215aa762d31060d8e32dad6b2b64e6234a2346a25fc7ded4db0ad95.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yoauhan = "C:\\Users\\Admin\\yoauhan.exe /g" yoauhan.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yoauhan = "C:\\Users\\Admin\\yoauhan.exe /N" yoauhan.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yoauhan = "C:\\Users\\Admin\\yoauhan.exe /q" yoauhan.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yoauhan = "C:\\Users\\Admin\\yoauhan.exe /W" yoauhan.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yoauhan = "C:\\Users\\Admin\\yoauhan.exe /c" yoauhan.exe Key created \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Windows\CurrentVersion\Run\ ef6e73126215aa762d31060d8e32dad6b2b64e6234a2346a25fc7ded4db0ad95.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yoauhan = "C:\\Users\\Admin\\yoauhan.exe /t" yoauhan.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yoauhan = "C:\\Users\\Admin\\yoauhan.exe /X" yoauhan.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yoauhan = "C:\\Users\\Admin\\yoauhan.exe /d" yoauhan.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yoauhan = "C:\\Users\\Admin\\yoauhan.exe /w" yoauhan.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yoauhan = "C:\\Users\\Admin\\yoauhan.exe /T" yoauhan.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 1724 ef6e73126215aa762d31060d8e32dad6b2b64e6234a2346a25fc7ded4db0ad95.exe 1724 ef6e73126215aa762d31060d8e32dad6b2b64e6234a2346a25fc7ded4db0ad95.exe 212 yoauhan.exe 212 yoauhan.exe 212 yoauhan.exe 212 yoauhan.exe 212 yoauhan.exe 212 yoauhan.exe 212 yoauhan.exe 212 yoauhan.exe 212 yoauhan.exe 212 yoauhan.exe 212 yoauhan.exe 212 yoauhan.exe 212 yoauhan.exe 212 yoauhan.exe 212 yoauhan.exe 212 yoauhan.exe 212 yoauhan.exe 212 yoauhan.exe 212 yoauhan.exe 212 yoauhan.exe 212 yoauhan.exe 212 yoauhan.exe 212 yoauhan.exe 212 yoauhan.exe 212 yoauhan.exe 212 yoauhan.exe 212 yoauhan.exe 212 yoauhan.exe 212 yoauhan.exe 212 yoauhan.exe 212 yoauhan.exe 212 yoauhan.exe 212 yoauhan.exe 212 yoauhan.exe 212 yoauhan.exe 212 yoauhan.exe 212 yoauhan.exe 212 yoauhan.exe 212 yoauhan.exe 212 yoauhan.exe 212 yoauhan.exe 212 yoauhan.exe 212 yoauhan.exe 212 yoauhan.exe 212 yoauhan.exe 212 yoauhan.exe 212 yoauhan.exe 212 yoauhan.exe 212 yoauhan.exe 212 yoauhan.exe 212 yoauhan.exe 212 yoauhan.exe 212 yoauhan.exe 212 yoauhan.exe 212 yoauhan.exe 212 yoauhan.exe 212 yoauhan.exe 212 yoauhan.exe 212 yoauhan.exe 212 yoauhan.exe 212 yoauhan.exe 212 yoauhan.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 1724 ef6e73126215aa762d31060d8e32dad6b2b64e6234a2346a25fc7ded4db0ad95.exe 212 yoauhan.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 1724 wrote to memory of 212 1724 ef6e73126215aa762d31060d8e32dad6b2b64e6234a2346a25fc7ded4db0ad95.exe 81 PID 1724 wrote to memory of 212 1724 ef6e73126215aa762d31060d8e32dad6b2b64e6234a2346a25fc7ded4db0ad95.exe 81 PID 1724 wrote to memory of 212 1724 ef6e73126215aa762d31060d8e32dad6b2b64e6234a2346a25fc7ded4db0ad95.exe 81
Processes
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C:\Users\Admin\AppData\Local\Temp\ef6e73126215aa762d31060d8e32dad6b2b64e6234a2346a25fc7ded4db0ad95.exe"C:\Users\Admin\AppData\Local\Temp\ef6e73126215aa762d31060d8e32dad6b2b64e6234a2346a25fc7ded4db0ad95.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:1724 -
C:\Users\Admin\yoauhan.exe"C:\Users\Admin\yoauhan.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:212
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
252KB
MD58de4d4f9edbbbb812cd5d2673c160ef1
SHA10e638fd967b35d141b3811bc9aea970b965601f4
SHA256f7d613277f40c40b1f61184fa3f8fdf87ed5d5820b3e54f6ea7e8d1111e79e38
SHA512281655250c5fa1e82b5052f6d763bca89f7f7cfb66a755323213ef20074cef3ea8cc1a5c2985bcf9463823763b6737a4e510fd1f1492ed3ab200555e39592e46
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Filesize
252KB
MD58de4d4f9edbbbb812cd5d2673c160ef1
SHA10e638fd967b35d141b3811bc9aea970b965601f4
SHA256f7d613277f40c40b1f61184fa3f8fdf87ed5d5820b3e54f6ea7e8d1111e79e38
SHA512281655250c5fa1e82b5052f6d763bca89f7f7cfb66a755323213ef20074cef3ea8cc1a5c2985bcf9463823763b6737a4e510fd1f1492ed3ab200555e39592e46