Analysis
- user interaction
yes - max time kernel
0s - max time network
19s - platform
windows10-2004_x64 - resource
win10v2004-20260911-en - resource tags
arch:x64arch:x86image:win10v2004-20260911-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
24/10/2026, 19:20
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
Viper.exe
Resource
win10v2004-20260911-en
2 signatures
150 seconds
Errors
Reason
Machine shutdown
General
- Target Viper.exe
- Size 10KB
- Sample261024-x2bnraff34
- SHA256 d11cb01e922f3ea7721d08dde9eff5c2779367627e2db18b8edbb96a415a293a
- MD5 6dd36fcec9b947d6db90fb428919c1ee
- SHA1 8e48819cd68e8413139536ed9a7d79e47d8af10d
- SHA512 858ca6a83c092a6e4900f9ae0590562ea6a4ddb52f18831cf672c9ac3161d818306f9ab6597785fbb2e97d58d917a8c2b56bf3a2d0b011df7b5ae162029e986e
- SSDEEP 96:H2Ti3nayve3Df7iqBDHG4fLn/Gjba8PYW3l7QyOIL1ibbACHWZwzT6Nkkgbg7uuk:WT0Q7zTO3XLl1OE8xpqCbnXUZ6
- TLSH T1AA22D754FBE4CE25F6BA5BF60E73D7009339E5E54E03C61F15A881A92BA138848927F1
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
3/10
Malware Config
Signatures
- Executes a command shell one-liner 1 TTPs 1 IoCs
Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.
pid Process 4744 cmd.exe - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 5000 wrote to memory of 2280 5000 Viper.exe 85
Processes
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C:\Users\Admin\AppData\Local\Temp\Viper.exe"C:\Users\Admin\AppData\Local\Temp\Viper.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:5000 -
C:\Windows\SYSTEM32\reg.exe"reg" delete HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion /f2⤵PID:2280
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C:\Windows\SYSTEM32\reg.exe"reg" delete HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet /f2⤵PID:2812
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C:\Windows\SYSTEM32\reg.exe"reg" delete HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001 /f2⤵PID:4640
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C:\Windows\SYSTEM32\reg.exe"reg" delete HKEY_CURRENT_USER\Software /f2⤵PID:4680
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C:\Windows\SYSTEM32\reg.exe"reg" delete HKEY_LOCAL_MACHINE\SOFTWARE\Classes /f2⤵PID:552
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C:\Windows\SYSTEM32\reg.exe"reg" delete HKEY_LOCAL_MACHINE\SYSTEM\Setup /f2⤵PID:4956
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C:\Windows\SYSTEM32\reg.exe"reg" delete HKEY_LOCAL_MACHINE\SYSTEM\DeviceMapper /f2⤵PID:1452
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C:\Windows\SYSTEM32\reg.exe"reg" delete HKEY_LOCAL_MACHINE\SOFTWARE\Policies /f2⤵PID:1756
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C:\Windows\SYSTEM32\reg.exe"reg" delete HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT /f2⤵PID:4932
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C:\Windows\SYSTEM32\reg.exe"reg" delete HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services /f2⤵PID:4588
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C:\Windows\SYSTEM32\cmd.exe"cmd" /c echo FFFF > C:\BIOS_CHK.dat2⤵
- Executes a command shell one-liner
PID:4744
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