Analysis
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max time kernel
150s -
max time network
128s -
platform
windows10-2004_x64 -
resource
win10v2004-20220901-en -
resource tags
arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system -
submitted
12-10-2022 15:00
Static task
static1
Behavioral task
behavioral1
Sample
9db69b7b135fa02bbeb0cb514eb929a389aeef3eedb4bd15d13c8a9108b6a03e.exe
Resource
win7-20220812-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
9db69b7b135fa02bbeb0cb514eb929a389aeef3eedb4bd15d13c8a9108b6a03e.exe
Resource
win10v2004-20220901-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
9db69b7b135fa02bbeb0cb514eb929a389aeef3eedb4bd15d13c8a9108b6a03e.exe
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Size
432KB
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MD5
6ca1fae204eab34cb297f7e83df6fdbf
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SHA1
9bdd963743a2b45347301efd157423f9ec7680df
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SHA256
9db69b7b135fa02bbeb0cb514eb929a389aeef3eedb4bd15d13c8a9108b6a03e
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SHA512
745f05bc79be67a0f3820c2b30133a72a5a21f5703915035d449e349e44eec9ac6ab2be4d592b3aff6c082c699d1de9ee82f4da31e036a1b97b25328822c397e
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SSDEEP
6144:t1VZfBdIgi71nAv/szQIzf4Zj3JVyN/Y53fZ6ZsVb75:rVLdInSssIWjPy9Y53B6A75
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" 9db69b7b135fa02bbeb0cb514eb929a389aeef3eedb4bd15d13c8a9108b6a03e.exe Set value (int) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" yohec.exe -
Executes dropped EXE 1 IoCs
pid Process 3300 yohec.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 9db69b7b135fa02bbeb0cb514eb929a389aeef3eedb4bd15d13c8a9108b6a03e.exe -
Adds Run key to start application 2 TTPs 29 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yohec = "C:\\Users\\Admin\\yohec.exe /y" yohec.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yohec = "C:\\Users\\Admin\\yohec.exe /t" yohec.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yohec = "C:\\Users\\Admin\\yohec.exe /q" 9db69b7b135fa02bbeb0cb514eb929a389aeef3eedb4bd15d13c8a9108b6a03e.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yohec = "C:\\Users\\Admin\\yohec.exe /l" yohec.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yohec = "C:\\Users\\Admin\\yohec.exe /d" yohec.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yohec = "C:\\Users\\Admin\\yohec.exe /i" yohec.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yohec = "C:\\Users\\Admin\\yohec.exe /g" yohec.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yohec = "C:\\Users\\Admin\\yohec.exe /s" yohec.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yohec = "C:\\Users\\Admin\\yohec.exe /m" yohec.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yohec = "C:\\Users\\Admin\\yohec.exe /z" yohec.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yohec = "C:\\Users\\Admin\\yohec.exe /p" yohec.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yohec = "C:\\Users\\Admin\\yohec.exe /h" yohec.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yohec = "C:\\Users\\Admin\\yohec.exe /u" yohec.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yohec = "C:\\Users\\Admin\\yohec.exe /w" yohec.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yohec = "C:\\Users\\Admin\\yohec.exe /a" yohec.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yohec = "C:\\Users\\Admin\\yohec.exe /b" yohec.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yohec = "C:\\Users\\Admin\\yohec.exe /f" yohec.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yohec = "C:\\Users\\Admin\\yohec.exe /j" yohec.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yohec = "C:\\Users\\Admin\\yohec.exe /n" yohec.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yohec = "C:\\Users\\Admin\\yohec.exe /r" yohec.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yohec = "C:\\Users\\Admin\\yohec.exe /k" yohec.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yohec = "C:\\Users\\Admin\\yohec.exe /q" yohec.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yohec = "C:\\Users\\Admin\\yohec.exe /o" yohec.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yohec = "C:\\Users\\Admin\\yohec.exe /v" yohec.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yohec = "C:\\Users\\Admin\\yohec.exe /e" yohec.exe Key created \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Windows\CurrentVersion\Run\ 9db69b7b135fa02bbeb0cb514eb929a389aeef3eedb4bd15d13c8a9108b6a03e.exe Key created \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Windows\CurrentVersion\Run\ yohec.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yohec = "C:\\Users\\Admin\\yohec.exe /c" yohec.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yohec = "C:\\Users\\Admin\\yohec.exe /x" yohec.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 2260 9db69b7b135fa02bbeb0cb514eb929a389aeef3eedb4bd15d13c8a9108b6a03e.exe 2260 9db69b7b135fa02bbeb0cb514eb929a389aeef3eedb4bd15d13c8a9108b6a03e.exe 3300 yohec.exe 3300 yohec.exe 3300 yohec.exe 3300 yohec.exe 3300 yohec.exe 3300 yohec.exe 3300 yohec.exe 3300 yohec.exe 3300 yohec.exe 3300 yohec.exe 3300 yohec.exe 3300 yohec.exe 3300 yohec.exe 3300 yohec.exe 3300 yohec.exe 3300 yohec.exe 3300 yohec.exe 3300 yohec.exe 3300 yohec.exe 3300 yohec.exe 3300 yohec.exe 3300 yohec.exe 3300 yohec.exe 3300 yohec.exe 3300 yohec.exe 3300 yohec.exe 3300 yohec.exe 3300 yohec.exe 3300 yohec.exe 3300 yohec.exe 3300 yohec.exe 3300 yohec.exe 3300 yohec.exe 3300 yohec.exe 3300 yohec.exe 3300 yohec.exe 3300 yohec.exe 3300 yohec.exe 3300 yohec.exe 3300 yohec.exe 3300 yohec.exe 3300 yohec.exe 3300 yohec.exe 3300 yohec.exe 3300 yohec.exe 3300 yohec.exe 3300 yohec.exe 3300 yohec.exe 3300 yohec.exe 3300 yohec.exe 3300 yohec.exe 3300 yohec.exe 3300 yohec.exe 3300 yohec.exe 3300 yohec.exe 3300 yohec.exe 3300 yohec.exe 3300 yohec.exe 3300 yohec.exe 3300 yohec.exe 3300 yohec.exe 3300 yohec.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 2260 9db69b7b135fa02bbeb0cb514eb929a389aeef3eedb4bd15d13c8a9108b6a03e.exe 3300 yohec.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 2260 wrote to memory of 3300 2260 9db69b7b135fa02bbeb0cb514eb929a389aeef3eedb4bd15d13c8a9108b6a03e.exe 83 PID 2260 wrote to memory of 3300 2260 9db69b7b135fa02bbeb0cb514eb929a389aeef3eedb4bd15d13c8a9108b6a03e.exe 83 PID 2260 wrote to memory of 3300 2260 9db69b7b135fa02bbeb0cb514eb929a389aeef3eedb4bd15d13c8a9108b6a03e.exe 83
Processes
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C:\Users\Admin\AppData\Local\Temp\9db69b7b135fa02bbeb0cb514eb929a389aeef3eedb4bd15d13c8a9108b6a03e.exe"C:\Users\Admin\AppData\Local\Temp\9db69b7b135fa02bbeb0cb514eb929a389aeef3eedb4bd15d13c8a9108b6a03e.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:2260 -
C:\Users\Admin\yohec.exe"C:\Users\Admin\yohec.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:3300
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
432KB
MD50a0d939f0c4cb44fcb89a8e100159b50
SHA11d3d7864e54bf27e8997240c3748d6ff826c0a08
SHA2566c0e848daf5a536747ff0e1b8fb3efc596652c3593af53e10be4e1e68b7a7c3d
SHA512fabff41c0d8f95589aeeea0204f18dc3f490b34d7dbd7345ca321cd232af616ec4eb85a7f17f8010be7f47b719345a19535c87e502e6047a952ce3f2d6fdd154
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Filesize
432KB
MD50a0d939f0c4cb44fcb89a8e100159b50
SHA11d3d7864e54bf27e8997240c3748d6ff826c0a08
SHA2566c0e848daf5a536747ff0e1b8fb3efc596652c3593af53e10be4e1e68b7a7c3d
SHA512fabff41c0d8f95589aeeea0204f18dc3f490b34d7dbd7345ca321cd232af616ec4eb85a7f17f8010be7f47b719345a19535c87e502e6047a952ce3f2d6fdd154