SU-CTF 2014: Steganography 100 write-up

Category: Steganography
Points: 100
Challenge Description:

“Hear With Your Eyes”

In this challenge, we were given a .wav file which we somehow had to decrypt to get the flag.

This was a pretty easy one to be honest. After hearing the audio, the first thing that came to my mind was to use a signal analyser. For this, I used baudline. The output was as follows:

The flag was: e5353bb7b575578bd4da1c898a8e2d7667