Threat Level: green Handler on Duty: Didier Stevens

SANS ISC: "ms-msdt" RTF Maldoc Analysis: oledump Plugins - SANS Internet Storm Center SANS ISC InfoSec Forums

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"ms-msdt" RTF Maldoc Analysis: oledump Plugins

In yesterday's analysis "Analysis Of An "ms-msdt" RTF Maldoc", I forgot to include the output of my oledump plugin plugin_clsid.

This plugin does a brute-force search for all classids defined in oletools:

And thus you can see the OLE stream contains an URL moniker.

I also started a new plugin, to parse these OLE data structures: plugin_olestreams (it's a work in progress).

Here is the output:

There is a lot of information in these streams.

To spot the URLs, you can grep for url and item:

Didier Stevens
Senior handler
Microsoft MVP


650 Posts
ISC Handler
Jun 6th 2022

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