SHA2017 - Junior CTF - Zipfile One - Misc

Problem

We received this zip file, but is asking for a password. All we know is that the password exists of 5 numbers, can you crack this password to get the hidden information?

zipfileone.zip 8caeb32d9716898f9af223f9762c8b27

Solution

The zip file has a short, simple password so we can attempt to brute force using FCrackZip.

$ fcrackzip -v -D -u -p rockyou.txt zipfileone.zip

The password is 42831 and unzipping returns the flag.

FLAG: flag{d6f56ae046bb241cc61f9d26f8e525d9}