PDF spam back for a brief fling

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Just in case you thought PDF spam was done for, spammers have brought it back within the last few weeks. Here is a sample Commtouch’s detection center brought to my attention:

Pharmaceutical message with PDF spam attachment

and here’s a screenshot of the attached PDF:

pharmaceutical PDF attachment

What I love is the Bayesian poisoning text at the bottom of the PDF, to try to fool Bayesian filters. If you can make sense out of it, good for you!

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