Analysis
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max time kernel
150s -
max time network
125s -
platform
windows10-2004_x64 -
resource
win10v2004-20220901-en -
resource tags
arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system -
submitted
19-10-2022 14:06
Static task
static1
Behavioral task
behavioral1
Sample
e9b3b58f3a7a956cff3c6cab607a669805cda9d4672bc89257a38ba906454c80.exe
Resource
win7-20220901-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
e9b3b58f3a7a956cff3c6cab607a669805cda9d4672bc89257a38ba906454c80.exe
Resource
win10v2004-20220901-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
e9b3b58f3a7a956cff3c6cab607a669805cda9d4672bc89257a38ba906454c80.exe
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Size
124KB
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MD5
a11c45ed535ae1270af000465bae4020
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SHA1
cc4eefa00b16df4037949162757b2b7bfd600839
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SHA256
e9b3b58f3a7a956cff3c6cab607a669805cda9d4672bc89257a38ba906454c80
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SHA512
e035f19f362a69abfbff8f6e127ca9a756702d91d83cdd4133f2b4b71a62ee05704f2306988ad795eeca67cae920edd21d766b9877facf91675d25b782b42b0e
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SSDEEP
1536:E1JzM5YxhhRF/N69Be3O4Ga+FE1jKKvRgrkOSoqPNeG0h/y:yxeYxhh3FoI3O41+F0kSjIq
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" e9b3b58f3a7a956cff3c6cab607a669805cda9d4672bc89257a38ba906454c80.exe Set value (int) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" yhmuez.exe -
Executes dropped EXE 1 IoCs
pid Process 4636 yhmuez.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 e9b3b58f3a7a956cff3c6cab607a669805cda9d4672bc89257a38ba906454c80.exe -
Adds Run key to start application 2 TTPs 55 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yhmuez = "C:\\Users\\Admin\\yhmuez.exe /m" yhmuez.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yhmuez = "C:\\Users\\Admin\\yhmuez.exe /I" yhmuez.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yhmuez = "C:\\Users\\Admin\\yhmuez.exe /l" yhmuez.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yhmuez = "C:\\Users\\Admin\\yhmuez.exe /G" yhmuez.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yhmuez = "C:\\Users\\Admin\\yhmuez.exe /j" yhmuez.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yhmuez = "C:\\Users\\Admin\\yhmuez.exe /u" yhmuez.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yhmuez = "C:\\Users\\Admin\\yhmuez.exe /s" e9b3b58f3a7a956cff3c6cab607a669805cda9d4672bc89257a38ba906454c80.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yhmuez = "C:\\Users\\Admin\\yhmuez.exe /K" yhmuez.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yhmuez = "C:\\Users\\Admin\\yhmuez.exe /E" yhmuez.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yhmuez = "C:\\Users\\Admin\\yhmuez.exe /t" yhmuez.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yhmuez = "C:\\Users\\Admin\\yhmuez.exe /r" yhmuez.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yhmuez = "C:\\Users\\Admin\\yhmuez.exe /n" yhmuez.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yhmuez = "C:\\Users\\Admin\\yhmuez.exe /b" yhmuez.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yhmuez = "C:\\Users\\Admin\\yhmuez.exe /h" yhmuez.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yhmuez = "C:\\Users\\Admin\\yhmuez.exe /z" yhmuez.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yhmuez = "C:\\Users\\Admin\\yhmuez.exe /X" yhmuez.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yhmuez = "C:\\Users\\Admin\\yhmuez.exe /D" yhmuez.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yhmuez = "C:\\Users\\Admin\\yhmuez.exe /W" yhmuez.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yhmuez = "C:\\Users\\Admin\\yhmuez.exe /M" yhmuez.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yhmuez = "C:\\Users\\Admin\\yhmuez.exe /N" yhmuez.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yhmuez = "C:\\Users\\Admin\\yhmuez.exe /Q" yhmuez.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yhmuez = "C:\\Users\\Admin\\yhmuez.exe /o" yhmuez.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yhmuez = "C:\\Users\\Admin\\yhmuez.exe /k" yhmuez.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yhmuez = "C:\\Users\\Admin\\yhmuez.exe /Y" yhmuez.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yhmuez = "C:\\Users\\Admin\\yhmuez.exe /e" yhmuez.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yhmuez = "C:\\Users\\Admin\\yhmuez.exe /v" yhmuez.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yhmuez = "C:\\Users\\Admin\\yhmuez.exe /x" yhmuez.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yhmuez = "C:\\Users\\Admin\\yhmuez.exe /P" yhmuez.exe Key created \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Windows\CurrentVersion\Run\ yhmuez.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yhmuez = "C:\\Users\\Admin\\yhmuez.exe /C" yhmuez.exe Key created \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Windows\CurrentVersion\Run\ e9b3b58f3a7a956cff3c6cab607a669805cda9d4672bc89257a38ba906454c80.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yhmuez = "C:\\Users\\Admin\\yhmuez.exe /a" yhmuez.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yhmuez = "C:\\Users\\Admin\\yhmuez.exe /s" yhmuez.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yhmuez = "C:\\Users\\Admin\\yhmuez.exe /y" yhmuez.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yhmuez = "C:\\Users\\Admin\\yhmuez.exe /A" yhmuez.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yhmuez = "C:\\Users\\Admin\\yhmuez.exe /H" yhmuez.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yhmuez = "C:\\Users\\Admin\\yhmuez.exe /p" yhmuez.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yhmuez = "C:\\Users\\Admin\\yhmuez.exe /d" yhmuez.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yhmuez = "C:\\Users\\Admin\\yhmuez.exe /U" yhmuez.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yhmuez = "C:\\Users\\Admin\\yhmuez.exe /B" yhmuez.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yhmuez = "C:\\Users\\Admin\\yhmuez.exe /Z" yhmuez.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yhmuez = "C:\\Users\\Admin\\yhmuez.exe /J" yhmuez.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yhmuez = "C:\\Users\\Admin\\yhmuez.exe /S" yhmuez.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yhmuez = "C:\\Users\\Admin\\yhmuez.exe /i" yhmuez.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yhmuez = "C:\\Users\\Admin\\yhmuez.exe /w" yhmuez.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yhmuez = "C:\\Users\\Admin\\yhmuez.exe /c" yhmuez.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yhmuez = "C:\\Users\\Admin\\yhmuez.exe /g" yhmuez.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yhmuez = "C:\\Users\\Admin\\yhmuez.exe /O" yhmuez.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yhmuez = "C:\\Users\\Admin\\yhmuez.exe /f" yhmuez.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yhmuez = "C:\\Users\\Admin\\yhmuez.exe /V" yhmuez.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yhmuez = "C:\\Users\\Admin\\yhmuez.exe /F" yhmuez.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yhmuez = "C:\\Users\\Admin\\yhmuez.exe /T" yhmuez.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yhmuez = "C:\\Users\\Admin\\yhmuez.exe /R" yhmuez.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yhmuez = "C:\\Users\\Admin\\yhmuez.exe /L" yhmuez.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yhmuez = "C:\\Users\\Admin\\yhmuez.exe /q" yhmuez.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 3168 e9b3b58f3a7a956cff3c6cab607a669805cda9d4672bc89257a38ba906454c80.exe 3168 e9b3b58f3a7a956cff3c6cab607a669805cda9d4672bc89257a38ba906454c80.exe 4636 yhmuez.exe 4636 yhmuez.exe 4636 yhmuez.exe 4636 yhmuez.exe 4636 yhmuez.exe 4636 yhmuez.exe 4636 yhmuez.exe 4636 yhmuez.exe 4636 yhmuez.exe 4636 yhmuez.exe 4636 yhmuez.exe 4636 yhmuez.exe 4636 yhmuez.exe 4636 yhmuez.exe 4636 yhmuez.exe 4636 yhmuez.exe 4636 yhmuez.exe 4636 yhmuez.exe 4636 yhmuez.exe 4636 yhmuez.exe 4636 yhmuez.exe 4636 yhmuez.exe 4636 yhmuez.exe 4636 yhmuez.exe 4636 yhmuez.exe 4636 yhmuez.exe 4636 yhmuez.exe 4636 yhmuez.exe 4636 yhmuez.exe 4636 yhmuez.exe 4636 yhmuez.exe 4636 yhmuez.exe 4636 yhmuez.exe 4636 yhmuez.exe 4636 yhmuez.exe 4636 yhmuez.exe 4636 yhmuez.exe 4636 yhmuez.exe 4636 yhmuez.exe 4636 yhmuez.exe 4636 yhmuez.exe 4636 yhmuez.exe 4636 yhmuez.exe 4636 yhmuez.exe 4636 yhmuez.exe 4636 yhmuez.exe 4636 yhmuez.exe 4636 yhmuez.exe 4636 yhmuez.exe 4636 yhmuez.exe 4636 yhmuez.exe 4636 yhmuez.exe 4636 yhmuez.exe 4636 yhmuez.exe 4636 yhmuez.exe 4636 yhmuez.exe 4636 yhmuez.exe 4636 yhmuez.exe 4636 yhmuez.exe 4636 yhmuez.exe 4636 yhmuez.exe 4636 yhmuez.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 3168 e9b3b58f3a7a956cff3c6cab607a669805cda9d4672bc89257a38ba906454c80.exe 4636 yhmuez.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 3168 wrote to memory of 4636 3168 e9b3b58f3a7a956cff3c6cab607a669805cda9d4672bc89257a38ba906454c80.exe 82 PID 3168 wrote to memory of 4636 3168 e9b3b58f3a7a956cff3c6cab607a669805cda9d4672bc89257a38ba906454c80.exe 82 PID 3168 wrote to memory of 4636 3168 e9b3b58f3a7a956cff3c6cab607a669805cda9d4672bc89257a38ba906454c80.exe 82
Processes
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C:\Users\Admin\AppData\Local\Temp\e9b3b58f3a7a956cff3c6cab607a669805cda9d4672bc89257a38ba906454c80.exe"C:\Users\Admin\AppData\Local\Temp\e9b3b58f3a7a956cff3c6cab607a669805cda9d4672bc89257a38ba906454c80.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:3168 -
C:\Users\Admin\yhmuez.exe"C:\Users\Admin\yhmuez.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:4636
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
124KB
MD50b7d829cb1998c1c6c1974b24d521d11
SHA1cf2786c0f09a83d75ef8831847f88b74dc19df7c
SHA2567c2e6282ab840e88f08099e540bdce667cecf78ae84d717f33a6bed9049a88ec
SHA5128da4137b849323ec1513af2f5f75e5736fe972177f6c41a1c7bfb68583af854e0aa3e4e20dd151dfaac14e860d46442064bda4985f8257c58ad1a14792a8621a
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Filesize
124KB
MD50b7d829cb1998c1c6c1974b24d521d11
SHA1cf2786c0f09a83d75ef8831847f88b74dc19df7c
SHA2567c2e6282ab840e88f08099e540bdce667cecf78ae84d717f33a6bed9049a88ec
SHA5128da4137b849323ec1513af2f5f75e5736fe972177f6c41a1c7bfb68583af854e0aa3e4e20dd151dfaac14e860d46442064bda4985f8257c58ad1a14792a8621a