Level 3 - Password Protected PDF

Challenge

You are given a PDF

You need to first extract the crackable information from the file using John the Ripper tool.

  
$ pdf2john.py unknown.pdf > hash

Now, crack the hash using John the Ripper tool.

  
$ john hash --wordlist=/usr/share/wordlists/rockyou.txt hash

Now, you can see the password for the PDF file is mystery. Use this password to open the PDF file and you will get the flag.

zyp{string_1408}