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Analysis
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max time kernel
150s -
max time network
127s -
platform
windows10-2004_x64 -
resource
win10v2004-20220901-en -
resource tags
arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system -
submitted
11/10/2022, 20:45
Static task
static1
Behavioral task
behavioral1
Sample
608ef8d2550dbc4090b3ec9855fa918d99ed849b956a9cbefa438370fadc09e5.exe
Resource
win7-20220812-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
608ef8d2550dbc4090b3ec9855fa918d99ed849b956a9cbefa438370fadc09e5.exe
Resource
win10v2004-20220901-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
608ef8d2550dbc4090b3ec9855fa918d99ed849b956a9cbefa438370fadc09e5.exe
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Size
268KB
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MD5
79f88998c3c0030605c6ce3f9a586ef3
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SHA1
9f9b07bb5332400ed6b548ccdace74f74f874b36
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SHA256
608ef8d2550dbc4090b3ec9855fa918d99ed849b956a9cbefa438370fadc09e5
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SHA512
9248335f15ff9e0d9a2e55ab99633748e65a69fd237d4a7742bd7f23993c75359e34f9d4f0ab8ae5c2e72384e66f89e658502086358643e383b6979ef10c191c
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SSDEEP
6144:7bOJl0UMS422Ous+azXt3D+Qh/pHq8+6IcLaOO3VX6uB/eBcJwRiY70Nf5:U0UMS4hsJzXt3D+Qh3IcqK2d
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" 608ef8d2550dbc4090b3ec9855fa918d99ed849b956a9cbefa438370fadc09e5.exe Set value (int) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" yoasiel.exe -
Executes dropped EXE 1 IoCs
pid Process 3468 yoasiel.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 608ef8d2550dbc4090b3ec9855fa918d99ed849b956a9cbefa438370fadc09e5.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\yoasiel = "C:\\Users\\Admin\\yoasiel.exe /F" 608ef8d2550dbc4090b3ec9855fa918d99ed849b956a9cbefa438370fadc09e5.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yoasiel = "C:\\Users\\Admin\\yoasiel.exe /C" yoasiel.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yoasiel = "C:\\Users\\Admin\\yoasiel.exe /r" yoasiel.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yoasiel = "C:\\Users\\Admin\\yoasiel.exe /F" yoasiel.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yoasiel = "C:\\Users\\Admin\\yoasiel.exe /I" yoasiel.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yoasiel = "C:\\Users\\Admin\\yoasiel.exe /R" yoasiel.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yoasiel = "C:\\Users\\Admin\\yoasiel.exe /U" yoasiel.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yoasiel = "C:\\Users\\Admin\\yoasiel.exe /w" yoasiel.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yoasiel = "C:\\Users\\Admin\\yoasiel.exe /t" yoasiel.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yoasiel = "C:\\Users\\Admin\\yoasiel.exe /J" yoasiel.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yoasiel = "C:\\Users\\Admin\\yoasiel.exe /L" yoasiel.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yoasiel = "C:\\Users\\Admin\\yoasiel.exe /m" yoasiel.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yoasiel = "C:\\Users\\Admin\\yoasiel.exe /f" yoasiel.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yoasiel = "C:\\Users\\Admin\\yoasiel.exe /T" yoasiel.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yoasiel = "C:\\Users\\Admin\\yoasiel.exe /X" yoasiel.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yoasiel = "C:\\Users\\Admin\\yoasiel.exe /j" yoasiel.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yoasiel = "C:\\Users\\Admin\\yoasiel.exe /q" yoasiel.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yoasiel = "C:\\Users\\Admin\\yoasiel.exe /G" yoasiel.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yoasiel = "C:\\Users\\Admin\\yoasiel.exe /H" yoasiel.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yoasiel = "C:\\Users\\Admin\\yoasiel.exe /Z" yoasiel.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yoasiel = "C:\\Users\\Admin\\yoasiel.exe /y" yoasiel.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yoasiel = "C:\\Users\\Admin\\yoasiel.exe /E" yoasiel.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yoasiel = "C:\\Users\\Admin\\yoasiel.exe /x" yoasiel.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yoasiel = "C:\\Users\\Admin\\yoasiel.exe /Q" yoasiel.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yoasiel = "C:\\Users\\Admin\\yoasiel.exe /O" yoasiel.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yoasiel = "C:\\Users\\Admin\\yoasiel.exe /V" yoasiel.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yoasiel = "C:\\Users\\Admin\\yoasiel.exe /M" yoasiel.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yoasiel = "C:\\Users\\Admin\\yoasiel.exe /Y" yoasiel.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yoasiel = "C:\\Users\\Admin\\yoasiel.exe /S" yoasiel.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yoasiel = "C:\\Users\\Admin\\yoasiel.exe /l" yoasiel.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yoasiel = "C:\\Users\\Admin\\yoasiel.exe /u" yoasiel.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yoasiel = "C:\\Users\\Admin\\yoasiel.exe /A" yoasiel.exe Key created \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Windows\CurrentVersion\Run\ yoasiel.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yoasiel = "C:\\Users\\Admin\\yoasiel.exe /k" yoasiel.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yoasiel = "C:\\Users\\Admin\\yoasiel.exe /c" yoasiel.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yoasiel = "C:\\Users\\Admin\\yoasiel.exe /i" yoasiel.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yoasiel = "C:\\Users\\Admin\\yoasiel.exe /W" yoasiel.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yoasiel = "C:\\Users\\Admin\\yoasiel.exe /p" yoasiel.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yoasiel = "C:\\Users\\Admin\\yoasiel.exe /h" yoasiel.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yoasiel = "C:\\Users\\Admin\\yoasiel.exe /K" yoasiel.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yoasiel = "C:\\Users\\Admin\\yoasiel.exe /D" yoasiel.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yoasiel = "C:\\Users\\Admin\\yoasiel.exe /N" yoasiel.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yoasiel = "C:\\Users\\Admin\\yoasiel.exe /s" yoasiel.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yoasiel = "C:\\Users\\Admin\\yoasiel.exe /a" yoasiel.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yoasiel = "C:\\Users\\Admin\\yoasiel.exe /z" yoasiel.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yoasiel = "C:\\Users\\Admin\\yoasiel.exe /n" yoasiel.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yoasiel = "C:\\Users\\Admin\\yoasiel.exe /g" yoasiel.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yoasiel = "C:\\Users\\Admin\\yoasiel.exe /e" yoasiel.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yoasiel = "C:\\Users\\Admin\\yoasiel.exe /o" yoasiel.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yoasiel = "C:\\Users\\Admin\\yoasiel.exe /P" yoasiel.exe Key created \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Windows\CurrentVersion\Run\ 608ef8d2550dbc4090b3ec9855fa918d99ed849b956a9cbefa438370fadc09e5.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yoasiel = "C:\\Users\\Admin\\yoasiel.exe /B" yoasiel.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yoasiel = "C:\\Users\\Admin\\yoasiel.exe /b" yoasiel.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yoasiel = "C:\\Users\\Admin\\yoasiel.exe /d" yoasiel.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 4832 608ef8d2550dbc4090b3ec9855fa918d99ed849b956a9cbefa438370fadc09e5.exe 4832 608ef8d2550dbc4090b3ec9855fa918d99ed849b956a9cbefa438370fadc09e5.exe 3468 yoasiel.exe 3468 yoasiel.exe 3468 yoasiel.exe 3468 yoasiel.exe 3468 yoasiel.exe 3468 yoasiel.exe 3468 yoasiel.exe 3468 yoasiel.exe 3468 yoasiel.exe 3468 yoasiel.exe 3468 yoasiel.exe 3468 yoasiel.exe 3468 yoasiel.exe 3468 yoasiel.exe 3468 yoasiel.exe 3468 yoasiel.exe 3468 yoasiel.exe 3468 yoasiel.exe 3468 yoasiel.exe 3468 yoasiel.exe 3468 yoasiel.exe 3468 yoasiel.exe 3468 yoasiel.exe 3468 yoasiel.exe 3468 yoasiel.exe 3468 yoasiel.exe 3468 yoasiel.exe 3468 yoasiel.exe 3468 yoasiel.exe 3468 yoasiel.exe 3468 yoasiel.exe 3468 yoasiel.exe 3468 yoasiel.exe 3468 yoasiel.exe 3468 yoasiel.exe 3468 yoasiel.exe 3468 yoasiel.exe 3468 yoasiel.exe 3468 yoasiel.exe 3468 yoasiel.exe 3468 yoasiel.exe 3468 yoasiel.exe 3468 yoasiel.exe 3468 yoasiel.exe 3468 yoasiel.exe 3468 yoasiel.exe 3468 yoasiel.exe 3468 yoasiel.exe 3468 yoasiel.exe 3468 yoasiel.exe 3468 yoasiel.exe 3468 yoasiel.exe 3468 yoasiel.exe 3468 yoasiel.exe 3468 yoasiel.exe 3468 yoasiel.exe 3468 yoasiel.exe 3468 yoasiel.exe 3468 yoasiel.exe 3468 yoasiel.exe 3468 yoasiel.exe 3468 yoasiel.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 4832 608ef8d2550dbc4090b3ec9855fa918d99ed849b956a9cbefa438370fadc09e5.exe 3468 yoasiel.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 4832 wrote to memory of 3468 4832 608ef8d2550dbc4090b3ec9855fa918d99ed849b956a9cbefa438370fadc09e5.exe 87 PID 4832 wrote to memory of 3468 4832 608ef8d2550dbc4090b3ec9855fa918d99ed849b956a9cbefa438370fadc09e5.exe 87 PID 4832 wrote to memory of 3468 4832 608ef8d2550dbc4090b3ec9855fa918d99ed849b956a9cbefa438370fadc09e5.exe 87
Processes
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C:\Users\Admin\AppData\Local\Temp\608ef8d2550dbc4090b3ec9855fa918d99ed849b956a9cbefa438370fadc09e5.exe"C:\Users\Admin\AppData\Local\Temp\608ef8d2550dbc4090b3ec9855fa918d99ed849b956a9cbefa438370fadc09e5.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:4832 -
C:\Users\Admin\yoasiel.exe"C:\Users\Admin\yoasiel.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:3468
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
268KB
MD54b3e61acb89b3d7857b573b9eee45635
SHA149aee1315f141e5e0d11cdb919aa7b2b1d169aaf
SHA2566da42042a61b5e1799ea72ddcbf5fc6098abc337d2244c5b7ea8eefc9a4210a0
SHA51260bfc7c0d6da53800fa34cf166981967fe916b8598e50a597a497f4b1facaad48189273892995e8205cbacd7ed3eed8ce66ffeba77474937726a4f35463c8f92
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Filesize
268KB
MD54b3e61acb89b3d7857b573b9eee45635
SHA149aee1315f141e5e0d11cdb919aa7b2b1d169aaf
SHA2566da42042a61b5e1799ea72ddcbf5fc6098abc337d2244c5b7ea8eefc9a4210a0
SHA51260bfc7c0d6da53800fa34cf166981967fe916b8598e50a597a497f4b1facaad48189273892995e8205cbacd7ed3eed8ce66ffeba77474937726a4f35463c8f92