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On this page
  • Execution
  • Observations
  • References
  1. offensive security
  2. Initial Access
  3. Phishing with MS Office

Phishing: Embedded Internet Explorer

Code execution with embedded Internet Explorer Object

PreviousPhishing: OLE + LNKNextPhishing: .SLK Excel

Last updated 6 years ago

In this phishing lab I am just playing around with the POCs researched, coded and described by Yorick Koster in his blog post

Execution

Observations

As with other phishing documents, we can unzip the .docx and do a simple hexdump/strings on the oleObject1.bin to look for any suspicious strings referring to some sort of file/code execution:

The CLSID object that makes this technique work is a Shell.Explorer.1 object, as seen here:

Get-ChildItem 'registry::HKEY_CLASSES_ROOT\CLSID\{EAB22AC3-30C1-11CF-A7EB-0000C05BAE0B}'

As an analyst, one should inspect the .bin file and look for the {EAB22AC3-30C1-11CF-A7EB-0000C05BAE0B} bytes inside, signifying the Shell.Explorer.1 object being embedded in the .bin file:

References

Click me if you can, Office social engineering with embedded objects
LogoClick me if you can, Office social engineering with embedded objectsSecurify website
11KB
WebBrowser.docx
WebBrowser.docx
51KB
poc.ps1
phishing-iex-embedded.ps1