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+--- Thread: PDF password created through Mac OS Preview app (/thread-7997.html)
PDF password created through Mac OS Preview app - younghashcatter - 12-08-2018
Hello, I have a PDF document and saved it with the Preview App of Mac OS. I think it uses 128bit key encryption by default and as the document is mine, I chose the password by myself. I created a dictionary with the words I use when I create passwords and would like to try all the possible permutations of that words.
How can I do it using hashcat?
RE: PDF password created through Mac OS Preview app - younghashcatter - 12-09-2018
(12-08-2018, 07:39 PM)younghashcatter Wrote: Hello, I have a PDF document and saved it with the Preview App of Mac OS. I think it uses 128bit key encryption by default and as the document is mine, I chose the password by myself. I created a dictionary with the words I use when I create passwords and would like to try all the possible permutations of that words.
How can I do it using hashcat?
I managed to get some result with the following command:
Code:
hashcat -m 10500 -a 1 -j '$!' -k '$!' hash dict1 dict2 -ORE: PDF password created through Mac OS Preview app - undeath - 12-09-2018
The append rule $ does only append and takes exactly one argument. $-! means "append - and then apply rule !". (! is a completely different rule and has one argument again). If you want to append "-!" you need the rule "$-$!".
If you want to prepend you need to use the rule for prepending a character. Check out https://hashcat.net/wiki/doku.php?id=rule_based_attack
RE: PDF password created through Mac OS Preview app - younghashcatter - 12-09-2018
thank you very much!