As I’m going to give my workshop on analysis of malicious PDFs at HiTB Amsterdam this Thursday, I thought I would share a PDF puzzle/challenge I made for BSidesLondon.
You can download it here.
And as there is write-up for the solution to this puzzle on a blog, I’ll link to this in the comments next week. Since you can just Google the solution, there is no prize this time.
Didier Stevens 