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Analysis
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max time kernel
108s -
max time network
36s -
platform
windows7_x64 -
resource
win7-20221111-en -
resource tags
arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system -
submitted
03/12/2022, 22:09
Static task
static1
Behavioral task
behavioral1
Sample
5d316a505eec6fa683d1a75b8c91eb332fd042ecf7f43da7ea1134b137570d0d.dll
Resource
win7-20221111-en
General
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Target
5d316a505eec6fa683d1a75b8c91eb332fd042ecf7f43da7ea1134b137570d0d.dll
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Size
148KB
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MD5
47ebcc75b00830c65597d69287b07a00
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SHA1
3ed9159c366e6d10a9231cba045a700a18107c24
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SHA256
5d316a505eec6fa683d1a75b8c91eb332fd042ecf7f43da7ea1134b137570d0d
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SHA512
6c304288cceb0103edd3160a8c1552fe2b4dc5bcda65daf0991e0433dd270db28cda469ad4e06a8a5ecc1d4fb191058fd76602de877e4db63a7469a64b1cbb85
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SSDEEP
1536:yQf11MeRl7KJYciD2cT4qIxFvvlzwLrOFpRVrI2ENqZF0uBggQyccxqNoJRhUiF9:ym1uHwcHv63Or3r/FQyccYoJRiseze
Malware Config
Signatures
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Installs/modifies Browser Helper Object 2 TTPs 2 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\{244AE512-A46A-4BEF-AAB7-1D9FFD3AB1F5} regsvr32.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{244AE512-A46A-4BEF-AAB7-1D9FFD3AB1F5}\NoExplorer = "1" regsvr32.exe -
Modifies registry class 46 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\BHOLOCKER.BhoLock.1\CLSID regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\BHOLOCKER.BhoLock\CLSID regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{FE966A4A-CA47-4BEB-B4F2-A1181237D512}\ = "IBhoLock" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{D30380A7-B720-4DCF-ACE4-2B99B3CB4D34}\1.0\FLAGS regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\BHOLOCKER.BhoLock.1 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{244AE512-A46A-4BEF-AAB7-1D9FFD3AB1F5}\InprocServer32\ThreadingModel = "Apartment" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{D30380A7-B720-4DCF-ACE4-2B99B3CB4D34} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{D30380A7-B720-4DCF-ACE4-2B99B3CB4D34}\1.0\ = "BHOLOCKER 1.0 Type Library" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{D30380A7-B720-4DCF-ACE4-2B99B3CB4D34}\1.0\0\win32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{FE966A4A-CA47-4BEB-B4F2-A1181237D512}\ProxyStubClsid32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{FE966A4A-CA47-4BEB-B4F2-A1181237D512}\TypeLib\Version = "1.0" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\BHOLOCKER.BhoLock\CLSID\ = "{244AE512-A46A-4BEF-AAB7-1D9FFD3AB1F5}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\BHOLOCKER.BhoLock\CurVer\ = "BHOLOCKER.BhoLock.1" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{244AE512-A46A-4BEF-AAB7-1D9FFD3AB1F5}\VersionIndependentProgID regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{D30380A7-B720-4DCF-ACE4-2B99B3CB4D34}\1.0\HELPDIR regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{FE966A4A-CA47-4BEB-B4F2-A1181237D512} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{FE966A4A-CA47-4BEB-B4F2-A1181237D512}\ = "IBhoLock" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{FE966A4A-CA47-4BEB-B4F2-A1181237D512}\ProxyStubClsid32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\BHOLOCKER.BhoLock\ = "BhoLock Class" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{244AE512-A46A-4BEF-AAB7-1D9FFD3AB1F5}\VersionIndependentProgID\ = "BHOLOCKER.BhoLock" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{244AE512-A46A-4BEF-AAB7-1D9FFD3AB1F5}\Programmable regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{244AE512-A46A-4BEF-AAB7-1D9FFD3AB1F5}\ProgID regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{244AE512-A46A-4BEF-AAB7-1D9FFD3AB1F5}\ProgID\ = "BHOLOCKER.BhoLock.1" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{244AE512-A46A-4BEF-AAB7-1D9FFD3AB1F5}\InprocServer32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{D30380A7-B720-4DCF-ACE4-2B99B3CB4D34}\1.0\FLAGS\ = "0" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{FE966A4A-CA47-4BEB-B4F2-A1181237D512}\TypeLib\Version = "1.0" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\BHOLOCKER.BhoLock.1\CLSID\ = "{244AE512-A46A-4BEF-AAB7-1D9FFD3AB1F5}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\BHOLOCKER.BhoLock\CurVer regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{244AE512-A46A-4BEF-AAB7-1D9FFD3AB1F5} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{FE966A4A-CA47-4BEB-B4F2-A1181237D512} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{FE966A4A-CA47-4BEB-B4F2-A1181237D512}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{FE966A4A-CA47-4BEB-B4F2-A1181237D512}\TypeLib\ = "{D30380A7-B720-4DCF-ACE4-2B99B3CB4D34}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{D30380A7-B720-4DCF-ACE4-2B99B3CB4D34}\1.0 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{D30380A7-B720-4DCF-ACE4-2B99B3CB4D34}\1.0\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{FE966A4A-CA47-4BEB-B4F2-A1181237D512}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{D30380A7-B720-4DCF-ACE4-2B99B3CB4D34}\1.0\0 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{D30380A7-B720-4DCF-ACE4-2B99B3CB4D34}\1.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\5d316a505eec6fa683d1a75b8c91eb332fd042ecf7f43da7ea1134b137570d0d.dll" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{FE966A4A-CA47-4BEB-B4F2-A1181237D512}\TypeLib regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\BHOLOCKER.BhoLock.1\ = "BhoLock Class" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\BHOLOCKER.BhoLock regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{244AE512-A46A-4BEF-AAB7-1D9FFD3AB1F5}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\5d316a505eec6fa683d1a75b8c91eb332fd042ecf7f43da7ea1134b137570d0d.dll" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{FE966A4A-CA47-4BEB-B4F2-A1181237D512}\TypeLib\ = "{D30380A7-B720-4DCF-ACE4-2B99B3CB4D34}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{FE966A4A-CA47-4BEB-B4F2-A1181237D512}\TypeLib regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{244AE512-A46A-4BEF-AAB7-1D9FFD3AB1F5}\ = "BhoLock Class" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{244AE512-A46A-4BEF-AAB7-1D9FFD3AB1F5}\TypeLib regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{244AE512-A46A-4BEF-AAB7-1D9FFD3AB1F5}\TypeLib\ = "{D30380A7-B720-4DCF-ACE4-2B99B3CB4D34}" regsvr32.exe -
Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 1996 wrote to memory of 1100 1996 regsvr32.exe 28 PID 1996 wrote to memory of 1100 1996 regsvr32.exe 28 PID 1996 wrote to memory of 1100 1996 regsvr32.exe 28 PID 1996 wrote to memory of 1100 1996 regsvr32.exe 28 PID 1996 wrote to memory of 1100 1996 regsvr32.exe 28 PID 1996 wrote to memory of 1100 1996 regsvr32.exe 28 PID 1996 wrote to memory of 1100 1996 regsvr32.exe 28
Processes
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C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\5d316a505eec6fa683d1a75b8c91eb332fd042ecf7f43da7ea1134b137570d0d.dll1⤵
- Suspicious use of WriteProcessMemory
PID:1996 -
C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\5d316a505eec6fa683d1a75b8c91eb332fd042ecf7f43da7ea1134b137570d0d.dll2⤵
- Installs/modifies Browser Helper Object
- Modifies registry class
PID:1100
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