Analysis
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max time kernel
33s -
max time network
42s -
platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system -
submitted
19/09/2022, 00:02
Behavioral task
behavioral1
Sample
23c38ead85267f6daf7364b490a7a0fd334f6f4e0d2c5f3d12cd611e4ceb2cdf.dll
Resource
win7-20220812-en
4 signatures
150 seconds
General
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Target
23c38ead85267f6daf7364b490a7a0fd334f6f4e0d2c5f3d12cd611e4ceb2cdf.dll
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Size
46KB
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MD5
14cb51b2e1cb0f9709c105884fc36a62
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SHA1
915e900793ee02b91cb8780f480e760cdf481b28
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SHA256
23c38ead85267f6daf7364b490a7a0fd334f6f4e0d2c5f3d12cd611e4ceb2cdf
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SHA512
22d9125f8460e105c888c9be506974d392fb4575cb102a4542392d507195be9d3679b8ed86fa19ffda38aeccb83d3f14f0078c7c67c6299025706bb4f0cd8306
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SSDEEP
768:HWKTiaWfm2JgmW1mup1yQAzGqgbnohznFXrxCha5S:HWKTi5DCj1yQ1qgzohJXEH
Malware Config
Signatures
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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\{4FE10D42-C0F3-4107-8C99-688C5ECD892C} regsvr32.exe -
Modifies registry class 42 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{4FE10D48-C0F3-4107-8C99-688C5ECD892C}\1.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\23c38ead85267f6daf7364b490a7a0fd334f6f4e0d2c5f3d12cd611e4ceb2cdf.dll" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{4FE10D41-C0F3-4107-8C99-688C5ECD892C}\TypeLib regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{4FE10D42-C0F3-4107-8C99-688C5ECD892C}\InprocServer32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{4FE10D48-C0F3-4107-8C99-688C5ECD892C} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{4FE10D42-C0F3-4107-8C99-688C5ECD892C}\ = "IEHlprObj Class" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{4FE10D42-C0F3-4107-8C99-688C5ECD892C}\ProgID\ = "IEHlprObj.IEHlprObj.1" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{4FE10D42-C0F3-4107-8C99-688C5ECD892C}\VersionIndependentProgID regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{4FE10D48-C0F3-4107-8C99-688C5ECD892C}\1.0\FLAGS\ = "0" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{4FE10D41-C0F3-4107-8C99-688C5ECD892C}\ProxyStubClsid32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj.1\CLSID\ = "{4FE10D42-C0F3-4107-8C99-688C5ECD892C}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj\CurVer\ = "IEHlprObj.IEHlprObj.1" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{4FE10D41-C0F3-4107-8C99-688C5ECD892C}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{4FE10D41-C0F3-4107-8C99-688C5ECD892C}\TypeLib regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{4FE10D41-C0F3-4107-8C99-688C5ECD892C}\TypeLib\Version = "1.0" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{4FE10D42-C0F3-4107-8C99-688C5ECD892C}\VersionIndependentProgID\ = "IEHlprObj.IEHlprObj" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{4FE10D48-C0F3-4107-8C99-688C5ECD892C}\1.0\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{4FE10D48-C0F3-4107-8C99-688C5ECD892C}\1.0\0\win32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{4FE10D41-C0F3-4107-8C99-688C5ECD892C} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj\ = "IEHlprObj Class" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{4FE10D48-C0F3-4107-8C99-688C5ECD892C}\1.0\0 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{4FE10D42-C0F3-4107-8C99-688C5ECD892C}\ProgID regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{4FE10D42-C0F3-4107-8C99-688C5ECD892C}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\23c38ead85267f6daf7364b490a7a0fd334f6f4e0d2c5f3d12cd611e4ceb2cdf.dll" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{4FE10D42-C0F3-4107-8C99-688C5ECD892C}\InprocServer32\ThreadingModel = "Apartment" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{4FE10D48-C0F3-4107-8C99-688C5ECD892C}\1.0\ = "IEHelper 1.0 Type Library" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{4FE10D48-C0F3-4107-8C99-688C5ECD892C}\1.0\HELPDIR regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{4FE10D41-C0F3-4107-8C99-688C5ECD892C}\ = "IIEHlprObj" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj\CurVer regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{4FE10D41-C0F3-4107-8C99-688C5ECD892C} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{4FE10D41-C0F3-4107-8C99-688C5ECD892C}\ = "IIEHlprObj" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{4FE10D41-C0F3-4107-8C99-688C5ECD892C}\TypeLib\Version = "1.0" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{4FE10D42-C0F3-4107-8C99-688C5ECD892C} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{4FE10D42-C0F3-4107-8C99-688C5ECD892C}\Programmable regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj.1\CLSID regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{4FE10D41-C0F3-4107-8C99-688C5ECD892C}\TypeLib\ = "{4FE10D48-C0F3-4107-8C99-688C5ECD892C}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj.1 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj.1\ = "IEHlprObj Class" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{4FE10D41-C0F3-4107-8C99-688C5ECD892C}\ProxyStubClsid32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{4FE10D41-C0F3-4107-8C99-688C5ECD892C}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{4FE10D41-C0F3-4107-8C99-688C5ECD892C}\TypeLib\ = "{4FE10D48-C0F3-4107-8C99-688C5ECD892C}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{4FE10D48-C0F3-4107-8C99-688C5ECD892C}\1.0 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{4FE10D48-C0F3-4107-8C99-688C5ECD892C}\1.0\FLAGS regsvr32.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 2000 regsvr32.exe 2000 regsvr32.exe -
Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 1992 wrote to memory of 2000 1992 regsvr32.exe 26 PID 1992 wrote to memory of 2000 1992 regsvr32.exe 26 PID 1992 wrote to memory of 2000 1992 regsvr32.exe 26 PID 1992 wrote to memory of 2000 1992 regsvr32.exe 26 PID 1992 wrote to memory of 2000 1992 regsvr32.exe 26 PID 1992 wrote to memory of 2000 1992 regsvr32.exe 26 PID 1992 wrote to memory of 2000 1992 regsvr32.exe 26
Processes
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C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\23c38ead85267f6daf7364b490a7a0fd334f6f4e0d2c5f3d12cd611e4ceb2cdf.dll1⤵
- Suspicious use of WriteProcessMemory
PID:1992 -
C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\23c38ead85267f6daf7364b490a7a0fd334f6f4e0d2c5f3d12cd611e4ceb2cdf.dll2⤵
- Installs/modifies Browser Helper Object
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
PID:2000
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