Analysis
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max time kernel
117s -
max time network
118s -
platform
windows7_x64 -
resource
win7-20231215-en -
resource tags
arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system -
submitted
02/02/2024, 22:14
Static task
static1
Behavioral task
behavioral1
Sample
VirusShare-0038e2aefbb6835291044caaf1fae6bb.dll
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
VirusShare-0038e2aefbb6835291044caaf1fae6bb.dll
Resource
win10v2004-20231215-en
General
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Target
VirusShare-0038e2aefbb6835291044caaf1fae6bb.dll
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Size
39KB
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MD5
0038e2aefbb6835291044caaf1fae6bb
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SHA1
af88ef0784f8d4ed3bce6358095b19450c8ab94f
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SHA256
f2c84d4f50e0a2d1ca44b12b9e01a8dd460dd9c66a365a02b0885b6085109c12
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SHA512
677f9611c3f2a3f3c7e853b7317a035aaf7b67d96b6ad3fa22a6018470ed9f5c36822c5622cd23034c7e3448cae43d4a65ca5eeceb942759ed1f9f6df4e1c009
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SSDEEP
768:Y68qVoHBPzSPDBY7FqrrwK/hrXbfJ7q6UTuyEn8C6djV06eYdchGBkxoERmRhV8r:JBoHBP2PDBY7FqrrwK/hrXbfJ7q6UTuT
Malware Config
Signatures
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Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Systems Restart = "Rundll32.exe wnim.dll, DllRegisterServer" regsvr32.exe -
Installs/modifies Browser Helper Object 2 TTPs 1 IoCs
BHOs are DLL modules which act as plugins for Internet Explorer.
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{B72F75B8-93F3-429D-B13E-660B206D897A} regsvr32.exe -
Modifies registry class 10 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\PROTOCOLS\Filter\text/plain regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{B72F75B8-93F3-429D-B13E-660B206D897A}\InProcServer32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{B72F75B8-93F3-429D-B13E-660B206D897A} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{B72F75B8-93F3-429D-B13E-660B206D897A}\InProcServer32\ = "C:\\Windows\\SysWow64\\wnim.dll" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{B72F75B8-93F3-429D-B13E-660B206D897A}\InProcServer32\ThreadingModel = "Apartment" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\PROTOCOLS\Filter\text/html regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\PROTOCOLS\Filter\text/plain\CLSID = "{B72F75B8-93F3-429D-B13E-660B206D897A}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\PROTOCOLS\Filter\text/html\CLSID = "{B72F75B8-93F3-429D-B13E-660B206D897A}" regsvr32.exe -
Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 2180 wrote to memory of 2328 2180 regsvr32.exe 28 PID 2180 wrote to memory of 2328 2180 regsvr32.exe 28 PID 2180 wrote to memory of 2328 2180 regsvr32.exe 28 PID 2180 wrote to memory of 2328 2180 regsvr32.exe 28 PID 2180 wrote to memory of 2328 2180 regsvr32.exe 28 PID 2180 wrote to memory of 2328 2180 regsvr32.exe 28 PID 2180 wrote to memory of 2328 2180 regsvr32.exe 28
Processes
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C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\VirusShare-0038e2aefbb6835291044caaf1fae6bb.dll1⤵
- Suspicious use of WriteProcessMemory
PID:2180 -
C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\VirusShare-0038e2aefbb6835291044caaf1fae6bb.dll2⤵
- Adds Run key to start application
- Installs/modifies Browser Helper Object
- Modifies registry class
PID:2328
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