UMDCTF 2021 - Pickle Rick | Steg
Pickle Rick
You recieve these audio files from someone named Alan Eliasen.
Downloadable files: “rickroll.wav” and “together-forever-encoded.wav”
Solution
After trying strings command, binwalk, and spectrogram via Audacity, I decided to look at the question more carefully. I noticed that the question gave us a specific name “Alan Eliasen”. I did a google search and I found this website
I first uploaded the “together-forever-encoded.wav” without a passphrase, and the output was “The password is “big_chungus”!”
Then, I uploaded the “rickroll.wav” with the passphrase “big_chungus” and I got the flag!
Flag: UMDCTF-{n3v3r_g0nna_l3t_y0u_d0wn}