ctf-writeups

Writeups for CTFs solved by ahmedheltaher

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Lesson 19: Audio Forensics

Lesson Link:
https://cybertalents.com/learn/introduction-to-cybersecurity/lessons/19-audio-forensics-1

Introduction

Audio forensics is the process of recovering and analyzing audio data from digital devices. It is a branch of digital forensics that deals with the recovery and investigation of material found in audio devices, often in relation to computer crime. Audio forensics can be used in the investigation of cybercrime, computer crime, or high-tech crime.

Challenge

Name:
I love music


Description:
listen and focus , you will listen another thing
Flag format : XXX_XXX_XXXXXXXXXXX

Solution

In this challenge we are given an audio file called love-music-wav, and we need to find the flag in it.

We can use academo to open the audio file, and then we can use the spectrogram view to see the audio file as a graph.

It will look something like this:

alt

We can see that the flag is you_are_victorious!.

Flag

you_are_victorious!

References