Analysis
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max time kernel
138s -
max time network
148s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
23-11-2022 18:55
Static task
static1
Behavioral task
behavioral1
Sample
72abd3cc1cf2292f7a35f940eb900b874a85f8cbc076abf4a44cb596348ad4fb.dll
Resource
win7-20221111-en
windows7-x64
4 signatures
150 seconds
General
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Target
72abd3cc1cf2292f7a35f940eb900b874a85f8cbc076abf4a44cb596348ad4fb.dll
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Size
208KB
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MD5
43a246237bb2332a1316f55d19f40a40
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SHA1
0eb4e4199c68f53a311894f4e203910656544d85
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SHA256
72abd3cc1cf2292f7a35f940eb900b874a85f8cbc076abf4a44cb596348ad4fb
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SHA512
1d69cc99a7dea33a2db41fb1e2be02d0e66b7f1de413c806ad08408d3bdeed78508002dfaca11d3289d7746b2867dc48f217090f4397e7c9636dfb613533cb1b
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SSDEEP
1536:2AMyX5bc9d+oNbWwIMAqp7fyQ1bX7C4Tt5HeuFlcxGjWpICbQqlhxP:25yt6RNbWefBJtxZvXx+Qqln
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.
Processes:
regsvr32.exedescription ioc process Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{AB705622-B25B-491B-A6BF-4A46FDDBC88E} regsvr32.exe -
Modifies registry class 42 IoCs
Processes:
regsvr32.exedescription ioc process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj\CurVer regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{AB705622-B25B-491B-A6BF-4A46FDDBC88E}\ProgID\ = "IEHlprObj.IEHlprObj.1" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{AB705622-B25B-491B-A6BF-4A46FDDBC88E}\VersionIndependentProgID\ = "IEHlprObj.IEHlprObj" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{AB705621-B25B-491B-A6BF-4A46FDDBC88E}\ = "IIEHlprObj" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{AB705621-B25B-491B-A6BF-4A46FDDBC88E}\ = "IIEHlprObj" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{AB705622-B25B-491B-A6BF-4A46FDDBC88E} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{AB705622-B25B-491B-A6BF-4A46FDDBC88E}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\72abd3cc1cf2292f7a35f940eb900b874a85f8cbc076abf4a44cb596348ad4fb.dll" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{AB705628-B25B-491B-A6BF-4A46FDDBC88E}\1.0\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{AB705621-B25B-491B-A6BF-4A46FDDBC88E}\TypeLib regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{AB705621-B25B-491B-A6BF-4A46FDDBC88E}\ProxyStubClsid32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{AB705621-B25B-491B-A6BF-4A46FDDBC88E}\TypeLib regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj.1\CLSID\ = "{AB705622-B25B-491B-A6BF-4A46FDDBC88E}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{AB705622-B25B-491B-A6BF-4A46FDDBC88E}\Programmable regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{AB705622-B25B-491B-A6BF-4A46FDDBC88E}\InprocServer32\ThreadingModel = "Apartment" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{AB705621-B25B-491B-A6BF-4A46FDDBC88E} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj\ = "IEHlprObj Class" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{AB705622-B25B-491B-A6BF-4A46FDDBC88E}\VersionIndependentProgID regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{AB705628-B25B-491B-A6BF-4A46FDDBC88E}\1.0\ = "IEHelper 1.0 Type Library" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{AB705628-B25B-491B-A6BF-4A46FDDBC88E}\1.0\0 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{AB705621-B25B-491B-A6BF-4A46FDDBC88E}\ProxyStubClsid32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{AB705621-B25B-491B-A6BF-4A46FDDBC88E}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{AB705621-B25B-491B-A6BF-4A46FDDBC88E}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{AB705621-B25B-491B-A6BF-4A46FDDBC88E}\TypeLib\ = "{AB705628-B25B-491B-A6BF-4A46FDDBC88E}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{AB705621-B25B-491B-A6BF-4A46FDDBC88E}\TypeLib\Version = "1.0" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj.1 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj\CurVer\ = "IEHlprObj.IEHlprObj.1" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{AB705628-B25B-491B-A6BF-4A46FDDBC88E}\1.0\FLAGS\ = "0" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{AB705628-B25B-491B-A6BF-4A46FDDBC88E}\1.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\72abd3cc1cf2292f7a35f940eb900b874a85f8cbc076abf4a44cb596348ad4fb.dll" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{AB705621-B25B-491B-A6BF-4A46FDDBC88E}\TypeLib\Version = "1.0" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj.1\ = "IEHlprObj Class" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{AB705628-B25B-491B-A6BF-4A46FDDBC88E}\1.0\FLAGS regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj.1\CLSID regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{AB705622-B25B-491B-A6BF-4A46FDDBC88E}\ = "IEHlprObj Class" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{AB705622-B25B-491B-A6BF-4A46FDDBC88E}\InprocServer32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{AB705628-B25B-491B-A6BF-4A46FDDBC88E}\1.0\0\win32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{AB705628-B25B-491B-A6BF-4A46FDDBC88E}\1.0\HELPDIR regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{AB705621-B25B-491B-A6BF-4A46FDDBC88E} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{AB705622-B25B-491B-A6BF-4A46FDDBC88E}\ProgID regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{AB705628-B25B-491B-A6BF-4A46FDDBC88E} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{AB705628-B25B-491B-A6BF-4A46FDDBC88E}\1.0 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{AB705621-B25B-491B-A6BF-4A46FDDBC88E}\TypeLib\ = "{AB705628-B25B-491B-A6BF-4A46FDDBC88E}" regsvr32.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
regsvr32.exepid process 4376 regsvr32.exe 4376 regsvr32.exe 4376 regsvr32.exe 4376 regsvr32.exe -
Suspicious use of WriteProcessMemory 3 IoCs
Processes:
regsvr32.exedescription pid process target process PID 4976 wrote to memory of 4376 4976 regsvr32.exe regsvr32.exe PID 4976 wrote to memory of 4376 4976 regsvr32.exe regsvr32.exe PID 4976 wrote to memory of 4376 4976 regsvr32.exe regsvr32.exe
Processes
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C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\72abd3cc1cf2292f7a35f940eb900b874a85f8cbc076abf4a44cb596348ad4fb.dll1⤵
- Suspicious use of WriteProcessMemory
PID:4976 -
C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\72abd3cc1cf2292f7a35f940eb900b874a85f8cbc076abf4a44cb596348ad4fb.dll2⤵
- Installs/modifies Browser Helper Object
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
PID:4376