Analysis
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max time kernel
151s -
max time network
155s -
platform
windows10-2004_x64 -
resource
win10v2004-20220901-en -
resource tags
arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system -
submitted
29-10-2022 16:09
Static task
static1
Behavioral task
behavioral1
Sample
4a9c11aa7da2f205df380467b00aa700ebd622d365f9b907c4bf3dd11dcb5cc4.exe
Resource
win7-20220812-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
4a9c11aa7da2f205df380467b00aa700ebd622d365f9b907c4bf3dd11dcb5cc4.exe
Resource
win10v2004-20220901-en
windows10-2004-x64
9 signatures
150 seconds
General
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Target
4a9c11aa7da2f205df380467b00aa700ebd622d365f9b907c4bf3dd11dcb5cc4.exe
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Size
272KB
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MD5
84d36fef909327caec2419af0d183640
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SHA1
2839e7f5e0bc5320373cab5a0b69305cbcb059aa
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SHA256
4a9c11aa7da2f205df380467b00aa700ebd622d365f9b907c4bf3dd11dcb5cc4
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SHA512
32e412c85cea5c7c1e915f1243f83044bc8d3048c7e123028ed09afcfd9598b64f3bfe97c126018402645e2a2561118f8ed5712577906772483597e28d249552
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SSDEEP
3072:/4n9gmss0FvbVJznCRcz/hVFA9MSs/PLLj+Qm4U3YwgTeA3viF:QevbfznH7O9G/PLLxU3YwgTI
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" 4a9c11aa7da2f205df380467b00aa700ebd622d365f9b907c4bf3dd11dcb5cc4.exe Set value (int) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" meusoh.exe -
Executes dropped EXE 1 IoCs
pid Process 628 meusoh.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 4a9c11aa7da2f205df380467b00aa700ebd622d365f9b907c4bf3dd11dcb5cc4.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\meusoh = "C:\\Users\\Admin\\meusoh.exe /q" meusoh.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\meusoh = "C:\\Users\\Admin\\meusoh.exe /s" meusoh.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\meusoh = "C:\\Users\\Admin\\meusoh.exe /k" meusoh.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\meusoh = "C:\\Users\\Admin\\meusoh.exe /f" 4a9c11aa7da2f205df380467b00aa700ebd622d365f9b907c4bf3dd11dcb5cc4.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\meusoh = "C:\\Users\\Admin\\meusoh.exe /n" meusoh.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\meusoh = "C:\\Users\\Admin\\meusoh.exe /z" meusoh.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\meusoh = "C:\\Users\\Admin\\meusoh.exe /o" meusoh.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\meusoh = "C:\\Users\\Admin\\meusoh.exe /c" meusoh.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\meusoh = "C:\\Users\\Admin\\meusoh.exe /j" meusoh.exe Key created \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Windows\CurrentVersion\Run\ 4a9c11aa7da2f205df380467b00aa700ebd622d365f9b907c4bf3dd11dcb5cc4.exe Key created \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Windows\CurrentVersion\Run\ meusoh.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\meusoh = "C:\\Users\\Admin\\meusoh.exe /v" meusoh.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\meusoh = "C:\\Users\\Admin\\meusoh.exe /t" meusoh.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\meusoh = "C:\\Users\\Admin\\meusoh.exe /h" meusoh.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\meusoh = "C:\\Users\\Admin\\meusoh.exe /r" meusoh.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\meusoh = "C:\\Users\\Admin\\meusoh.exe /m" meusoh.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\meusoh = "C:\\Users\\Admin\\meusoh.exe /e" meusoh.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\meusoh = "C:\\Users\\Admin\\meusoh.exe /i" meusoh.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\meusoh = "C:\\Users\\Admin\\meusoh.exe /f" meusoh.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\meusoh = "C:\\Users\\Admin\\meusoh.exe /l" meusoh.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\meusoh = "C:\\Users\\Admin\\meusoh.exe /a" meusoh.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\meusoh = "C:\\Users\\Admin\\meusoh.exe /u" meusoh.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\meusoh = "C:\\Users\\Admin\\meusoh.exe /g" meusoh.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\meusoh = "C:\\Users\\Admin\\meusoh.exe /b" meusoh.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\meusoh = "C:\\Users\\Admin\\meusoh.exe /w" meusoh.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\meusoh = "C:\\Users\\Admin\\meusoh.exe /x" meusoh.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\meusoh = "C:\\Users\\Admin\\meusoh.exe /p" meusoh.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\meusoh = "C:\\Users\\Admin\\meusoh.exe /y" meusoh.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\meusoh = "C:\\Users\\Admin\\meusoh.exe /d" meusoh.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Modifies registry class 1 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\Local Settings 4a9c11aa7da2f205df380467b00aa700ebd622d365f9b907c4bf3dd11dcb5cc4.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 3816 4a9c11aa7da2f205df380467b00aa700ebd622d365f9b907c4bf3dd11dcb5cc4.exe 3816 4a9c11aa7da2f205df380467b00aa700ebd622d365f9b907c4bf3dd11dcb5cc4.exe 628 meusoh.exe 628 meusoh.exe 628 meusoh.exe 628 meusoh.exe 628 meusoh.exe 628 meusoh.exe 628 meusoh.exe 628 meusoh.exe 628 meusoh.exe 628 meusoh.exe 628 meusoh.exe 628 meusoh.exe 628 meusoh.exe 628 meusoh.exe 628 meusoh.exe 628 meusoh.exe 628 meusoh.exe 628 meusoh.exe 628 meusoh.exe 628 meusoh.exe 628 meusoh.exe 628 meusoh.exe 628 meusoh.exe 628 meusoh.exe 628 meusoh.exe 628 meusoh.exe 628 meusoh.exe 628 meusoh.exe 628 meusoh.exe 628 meusoh.exe 628 meusoh.exe 628 meusoh.exe 628 meusoh.exe 628 meusoh.exe 628 meusoh.exe 628 meusoh.exe 628 meusoh.exe 628 meusoh.exe 628 meusoh.exe 628 meusoh.exe 628 meusoh.exe 628 meusoh.exe 628 meusoh.exe 628 meusoh.exe 628 meusoh.exe 628 meusoh.exe 628 meusoh.exe 628 meusoh.exe 628 meusoh.exe 628 meusoh.exe 628 meusoh.exe 628 meusoh.exe 628 meusoh.exe 628 meusoh.exe 628 meusoh.exe 628 meusoh.exe 628 meusoh.exe 628 meusoh.exe 628 meusoh.exe 628 meusoh.exe 628 meusoh.exe 628 meusoh.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 3816 4a9c11aa7da2f205df380467b00aa700ebd622d365f9b907c4bf3dd11dcb5cc4.exe 628 meusoh.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 3816 wrote to memory of 628 3816 4a9c11aa7da2f205df380467b00aa700ebd622d365f9b907c4bf3dd11dcb5cc4.exe 88 PID 3816 wrote to memory of 628 3816 4a9c11aa7da2f205df380467b00aa700ebd622d365f9b907c4bf3dd11dcb5cc4.exe 88 PID 3816 wrote to memory of 628 3816 4a9c11aa7da2f205df380467b00aa700ebd622d365f9b907c4bf3dd11dcb5cc4.exe 88
Processes
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C:\Users\Admin\AppData\Local\Temp\4a9c11aa7da2f205df380467b00aa700ebd622d365f9b907c4bf3dd11dcb5cc4.exe"C:\Users\Admin\AppData\Local\Temp\4a9c11aa7da2f205df380467b00aa700ebd622d365f9b907c4bf3dd11dcb5cc4.exe"1⤵
- Modifies visiblity of hidden/system files in Explorer
- Checks computer location settings
- Adds Run key to start application
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3816 -
C:\Users\Admin\meusoh.exe"C:\Users\Admin\meusoh.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:628
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C:\Windows\System32\rundll32.exeC:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding1⤵PID:3456
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
272KB
MD584d36fef909327caec2419af0d183640
SHA12839e7f5e0bc5320373cab5a0b69305cbcb059aa
SHA2564a9c11aa7da2f205df380467b00aa700ebd622d365f9b907c4bf3dd11dcb5cc4
SHA51232e412c85cea5c7c1e915f1243f83044bc8d3048c7e123028ed09afcfd9598b64f3bfe97c126018402645e2a2561118f8ed5712577906772483597e28d249552
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Filesize
272KB
MD584d36fef909327caec2419af0d183640
SHA12839e7f5e0bc5320373cab5a0b69305cbcb059aa
SHA2564a9c11aa7da2f205df380467b00aa700ebd622d365f9b907c4bf3dd11dcb5cc4
SHA51232e412c85cea5c7c1e915f1243f83044bc8d3048c7e123028ed09afcfd9598b64f3bfe97c126018402645e2a2561118f8ed5712577906772483597e28d249552