ctf-writeup/2023/VishwaCTF 2023/The Sender Conundrum

The Sender Conundrum

Marcus Got a Mysterious mail promising a flag if he could crack the password to the file.

About the Challenge

We were given an email file (You can download the file here) and a password protected zip file (You can download the file here). We need to know the password of the zip to obtain the flag

How to Solve?

As you can see there is a riddle inside the email, solve it to get the flag. But in this case I will brute the zip file using JohnTheRipper. Here is the command I used

zip2john unzipme.zip > hash.txt
john -w=/usr/share/wordlists/rockyou.txt hash.txt

And then check the password by running this command

john --show hash.txt

The password is BrandonLee. Open the zip file again and input the password to read the flag

vishwaCTF{1d3n7i7y_7h3f7_is_n0t_4_j0k3}