Syncopated Beat

DeadFaceCTF2023 Oct 24, 2023

📜Scenario

🔎Solve

We got a zip with 2 audio files

I played the first audio file and in the middle of it, there was a part that was weird sound as we can see on the picture

It sounds a lot like a reversed audio, open Audacity, reversed that part with
Effect > reverse direction (or something like that in english)

We got a voice who said :

Time is reversible but the music is not
Go back Go back
Hey i remenber you
????? In this year
You need the stego program use by Elliot and Mister Robot
And use it on the audio file linked on the challenge
The pass is the name of the new CTO of evil corp
All caps no space

Googled both things, and found that there's a software called DeepSound. Used by Elliot Alderson. I opened the second audio using this software. For this we need the password :

So I tried all the Evil Corp CTOs according to the fandom wiki :

Scott Knowles SCOTTKNOWLES
Terry Colby TERRYCOLBY
Terence Colby TERENCECOLBY
Tyrell Wellick TYRELLWELLICK

The one that works is Tyrell Wellick and we got a beautiful picture x)

WriteUp made by Shaym

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