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A multi-threaded PDF password cracking utility equipped with commonly encountered password format builders and dictionary attacks.

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PDFRip

A multi-threaded PDF password cracking utility equipped with commonly encountered password format builders and dictionary attacks.

📖 Table of Contents

ℹ️ Introduction

pdfrip is a fast multithreaded PDF password cracking utility written in Rust with support for wordlist-based dictionary attacks, date, number range, and alphanumeric brute-forcing, and a custom query builder for password formats.

Features

  • Fast: Performs about 50k-100k+ passwords per second utilizing full CPU cores.
  • Custom Query Builder: You can write your own queries like STRING{69-420} which would generate and use a wordlist with the full number range.
  • Date Bruteforce: You can pass in a year which would bruteforce all 365 days of the year in DDMMYYYY format which is a pretty commonly used password format for PDFs.
  • Number Bruteforce: Just give a number range like 5000-100000 and it would bruteforce with the whole range.
  • Default Bruteforce: Specify a maximum and optionally a minimum length for the password search and all passwords of length 4 up to the specified maximum consisting of letters and numbers (a-zA-Z0-9) will be tried

Installation

Install with cargo:

$ cargo install --git https://github.com/mufeedvh/pdfrip.git

Install Rust/Cargo

Build From Source

Prerequisites:

  • Git
  • Rust
  • Cargo (Automatically installed when installing Rust)
  • A C linker (Only for Linux, generally comes pre-installed)
$ git clone https://github.com/mufeedvh/pdfrip.git
$ cd pdfrip/
$ cargo build --release

The first command clones this repository into your local machine and the last two commands enters the directory and builds the source in release mode.

Usage

Get a list of all the arguments:

$ pdfrip --help

Start a dictionary attack with a wordlist:

$ pdfrip -f encrypted.pdf wordlist rockyou.txt

Bruteforce number ranges for the password:

$ pdfrip -f encrypted.pdf range 1000 9999

Bruteforce all dates in a span (inclusive in both ends) of years for the password in DDMMYYYY format:

$ pdfrip -f encrypted.pdf date 1900 2000

Bruteforce arbitrary strings of length 4-8:

$ pdfrip -f encrypted.pdf default-query --max-length 8

Bruteforce arbitrary strings of length 3:

$ pdfrip -f encrypted.pdf default-query --max-length 3 --min-length 3

Build a custom query to generate a wordlist: (useful when you know the password format)

$ pdfrip -f encrypted.pdf custom-query ALICE{1000-9999}

$ pdfrip -f encrypted.pdf custom-query DOC-ID{0-99}-FILE

Enable preceding zeros for custom queries: (which would make {10-5000} to {0010-5000} matching the end range's digits)

$ pdfrip -f encrypted.pdf custom-query ALICE{10-9999} --add-preceding-zeros

Contribution

Ways to contribute:

  • Suggest a feature
  • Report a bug
  • Fix something and open a pull request
  • Help me document the code
  • Spread the word

License

Licensed under the MIT License, see LICENSE for more information.

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A multi-threaded PDF password cracking utility equipped with commonly encountered password format builders and dictionary attacks.

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