Analysis
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max time kernel
45s -
max time network
48s -
platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system -
submitted
06-12-2022 19:39
Static task
static1
Behavioral task
behavioral1
Sample
594e1c972708c29e51489c8eb58de4d65a774af0830679f5d210b5f4a98d855e.dll
Resource
win7-20220812-en
windows7-x64
3 signatures
150 seconds
General
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Target
594e1c972708c29e51489c8eb58de4d65a774af0830679f5d210b5f4a98d855e.dll
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Size
292KB
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MD5
85157be12f0a5edc202fc43942a89480
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SHA1
65feda9d212a4718ad777b53ebe75750e7494da2
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SHA256
594e1c972708c29e51489c8eb58de4d65a774af0830679f5d210b5f4a98d855e
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SHA512
c4c63361b7f5492d651438b5bd3e1c3decc7f3b37c663fc194e5bd316c4ecf3242695e779c50b45c0acb5ca8d4612cbea75576b951873ef56edc5fbdd97962d4
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SSDEEP
6144:rLwxo8nAQAIkJv3phtKeaOkBUxahok3VUhyFLQt:/w1nANJv53KeZkmx1k3VBJQ
Malware Config
Signatures
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Installs/modifies Browser Helper Object 2 TTPs 3 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\{F4CA473D-E072-4953-B99F-CF1E11F64BB2} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{F4CA473D-E072-4953-B99F-CF1E11F64BB2}\ = "kmvlibP" regsvr32.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{F4CA473D-E072-4953-B99F-CF1E11F64BB2}\NoExplorer = "1" regsvr32.exe -
Modifies registry class 64 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{F4CA473D-E072-4953-B99F-CF1E11F64BB2}\ProgID\ = "kmvlib.AClass.1" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{F4CA473D-E072-4953-B99F-CF1E11F64BB2}\TypeLib\ = "{69B3418B-E4A5-464B-B11E-410BBF8358AA}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{69B3418B-E4A5-464B-B11E-410BBF8358AA}\1.0\ = "kmvlib Type Library" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{69B3418B-E4A5-464B-B11E-410BBF8358AA}\1.0\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{D3D3A441-73DF-4529-8F77-4261D4B35E41}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\AppID\kmvlib.DLL regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\xvideoplugin.JetMimeFiltr\CurVer regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\xvideoplugin.JetVideoPlugin regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{F889EC74-3538-4CAA-A912-0D49B84F931D} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{F889EC74-3538-4CAA-A912-0D49B84F931D}\ProxyStubClsid32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{D3D3A441-73DF-4529-8F77-4261D4B35E41} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{F889EC74-3538-4CAA-A912-0D49B84F931D} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{F889EC74-3538-4CAA-A912-0D49B84F931D}\TypeLib regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{F4CA473D-E072-4953-B99F-CF1E11F64BB2}\InprocServer32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{69B3418B-E4A5-464B-B11E-410BBF8358AA}\1.0\0\win32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{D3D3A441-73DF-4529-8F77-4261D4B35E41} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{F889EC74-3538-4CAA-A912-0D49B84F931D}\ = "IJetMimeFiltr" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{F889EC74-3538-4CAA-A912-0D49B84F931D}\TypeLib regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\AppID\{B0ED4726-5BC8-4E22-A7A8-3074A73CE64E} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\xvideoplugin.JetMimeFiltr\ = "kmvlibB Class" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{F4CA473D-E072-4953-B99F-CF1E11F64BB2}\ProgID regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{D3D3A441-73DF-4529-8F77-4261D4B35E41}\InProcServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\594e1c972708c29e51489c8eb58de4d65a774af0830679f5d210b5f4a98d855e.dll" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{D3D3A441-73DF-4529-8F77-4261D4B35E41}\NumMethods\ = "7" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{D45181E8-9A4C-4D17-B0B3-BE87122CF3D5}\TypeLib\ = "{69B3418B-E4A5-464B-B11E-410BBF8358AA}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{F4CA473D-E072-4953-B99F-CF1E11F64BB2} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{69B3418B-E4A5-464B-B11E-410BBF8358AA}\1.0\0 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{69B3418B-E4A5-464B-B11E-410BBF8358AA} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{69B3418B-E4A5-464B-B11E-410BBF8358AA}\1.0\HELPDIR regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{D3D3A441-73DF-4529-8F77-4261D4B35E41}\ProxyStubClsid32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{1408E208-2AC1-42D3-9F10-78A5B36E05AC} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\xvideoplugin.JetMimeFiltr\CLSID\ = "{D45181E8-9A4C-4D17-B0B3-BE87122CF3D5}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{D45181E8-9A4C-4D17-B0B3-BE87122CF3D5}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\594e1c972708c29e51489c8eb58de4d65a774af0830679f5d210b5f4a98d855e.dll" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{F4CA473D-E072-4953-B99F-CF1E11F64BB2}\InprocServer32\ThreadingModel = "Apartment" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{D3D3A441-73DF-4529-8F77-4261D4B35E41}\TypeLib\Version = "1.0" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{F889EC74-3538-4CAA-A912-0D49B84F931D}\ = "IJetMimeFiltr" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{F889EC74-3538-4CAA-A912-0D49B84F931D}\NumMethods\ = "7" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{D45181E8-9A4C-4D17-B0B3-BE87122CF3D5}\ProgID\ = "kmvlib.BClass.1" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\xvideoplugin.JetVideoPlugin.1\CLSID regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{F4CA473D-E072-4953-B99F-CF1E11F64BB2}\Programmable regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{F889EC74-3538-4CAA-A912-0D49B84F931D}\TypeLib\ = "{69B3418B-E4A5-464B-B11E-410BBF8358AA}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{F889EC74-3538-4CAA-A912-0D49B84F931D}\NumMethods regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\xvideoplugin.JetMimeFiltr.1 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\xvideoplugin.JetMimeFiltr.1\CLSID\ = "{D45181E8-9A4C-4D17-B0B3-BE87122CF3D5}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\xvideoplugin.JetVideoPlugin\CLSID regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{D3D3A441-73DF-4529-8F77-4261D4B35E41}\NumMethods regsvr32.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{1408E208-2AC1-42D3-9F10-78A5B36E05AC}\{070E2C5C-40D8-4A0A-9F39-9C642B5662DA} = 6b006d0076006c00690062002e0064006c006c00 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{D3D3A441-73DF-4529-8F77-4261D4B35E41}\ProxyStubClsid32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{F889EC74-3538-4CAA-A912-0D49B84F931D}\TypeLib\Version = "1.0" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{F4CA473D-E072-4953-B99F-CF1E11F64BB2}\VersionIndependentProgID regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{F4CA473D-E072-4953-B99F-CF1E11F64BB2}\VersionIndependentProgID\ = "kmvlib.AClass" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{69B3418B-E4A5-464B-B11E-410BBF8358AA}\1.0\FLAGS regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{D3D3A441-73DF-4529-8F77-4261D4B35E41}\TypeLib regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\xvideoplugin.JetMimeFiltr\CurVer\ = "Lexlibplugin.LexlibMimeFiltr.1" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{D45181E8-9A4C-4D17-B0B3-BE87122CF3D5}\ = "JetMimeFiltr Class" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{D45181E8-9A4C-4D17-B0B3-BE87122CF3D5}\Programmable regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{D3D3A441-73DF-4529-8F77-4261D4B35E41}\TypeLib\ = "{69B3418B-E4A5-464B-B11E-410BBF8358AA}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{D45181E8-9A4C-4D17-B0B3-BE87122CF3D5} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{D45181E8-9A4C-4D17-B0B3-BE87122CF3D5}\InprocServer32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{F4CA473D-E072-4953-B99F-CF1E11F64BB2}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\594e1c972708c29e51489c8eb58de4d65a774af0830679f5d210b5f4a98d855e.dll" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\xvideoplugin.JetVideoPlugin\ = "kmvlibA Class" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{69B3418B-E4A5-464B-B11E-410BBF8358AA}\1.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\594e1c972708c29e51489c8eb58de4d65a774af0830679f5d210b5f4a98d855e.dll" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{F889EC74-3538-4CAA-A912-0D49B84F931D}\TypeLib\Version = "1.0" regsvr32.exe -
Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 1368 wrote to memory of 956 1368 regsvr32.exe 27 PID 1368 wrote to memory of 956 1368 regsvr32.exe 27 PID 1368 wrote to memory of 956 1368 regsvr32.exe 27 PID 1368 wrote to memory of 956 1368 regsvr32.exe 27 PID 1368 wrote to memory of 956 1368 regsvr32.exe 27 PID 1368 wrote to memory of 956 1368 regsvr32.exe 27 PID 1368 wrote to memory of 956 1368 regsvr32.exe 27
Processes
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C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\594e1c972708c29e51489c8eb58de4d65a774af0830679f5d210b5f4a98d855e.dll1⤵
- Suspicious use of WriteProcessMemory
PID:1368 -
C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\594e1c972708c29e51489c8eb58de4d65a774af0830679f5d210b5f4a98d855e.dll2⤵
- Installs/modifies Browser Helper Object
- Modifies registry class
PID:956
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