Hack PDF Password with Hashcat - John The Ripper - Qpdf (Windows)

Think your passwords are secure? Think again.😉

When you finally get a useful PDF report from the Internet, only to find out that you cannot copy, edit, or even print it, how do you solve the problem? This is where a PDF Password Hacking comes from. In this post, I will provide the easiest solution to hack PDF password with Hashcat & John the ripper Jumbo.

After you have hacked PDF password, you might like to edit the PDF files: copy content from PDF, edit the PDF text, images, links directly. You still need this all-in-one PDF Editor - Qpdf, developed by Jay Berkenbilt. It helps you modify PDF contents, perform transformations such as linearization, encryption, and decryption of PDF files etc.

It's easy to imagine that passwords are safe when the systems they protect lockout users after three or four wrong guesses, blocking automated guessing applications. Well, that would be true if it were not for the fact that most password hacking takes place offline, using a set of hashes in a password file that has been obtained' from a compromised system.

If you think that by mashing words together, such as "superadministratorguy", will defend you against such an attack, think again. The dictionary attack can accommodate for this, and as such will only delay a hack for a matter of seconds.

The dictionary attack, as its name suggests, is a method that uses an index of words that feature most commonly as user passwords. This is a slightly less-sophisticated a version of the brute force attack but it still relies on hackers bombarding a system with guesses until something sticks.

The password hackers best friend, of course, is the predictability of the user. Unless a truly random password has been created using software dedicated to the task i.e "Crunch", a user-generated random' password is unlikely to be anything of the sort. Instead, thanks to our brains' emotional attachment to things we like, the chances are those random passwords are based upon our interests, hobbies, pets, family and so on. In fact, passwords tend to be based on all the things we like to chat about on social networks and even include in our profiles. Hackers are very likely to look at this information and make a few – often correct – educated guesses when attempting to crack a consumer-level password without resorting to dictionary or brute force attacks.

Password security is one of the most critical controls that can be implemented within a systems environment to protect corporate information and computer resources. The Internet offers a wide range of tools that can assist the administrator in enforcing adequate password controls. Passwords provide a line of security against computer hacker attacks, the stronger the password procedures, the stronger the defence against a hacker attack. As hackers expand their knowledge, so should you. You must think like them to protect your systems from them.

You, as ordinary people, you must know activities hackers carry out and how to stop their efforts. You should know what to look for and how to use that information to thwart hackers’ efforts.

Download links

Hashcat

https://hashcat.net/hashcat/

John the ripper

https://www.openwall.com/john/k/john-1.9.0-jumbo-1-win64.zip

https://www.openwall.com/john/

Qpdf

https://github.com/qpdf/qpdf

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