HousePlant CTF :Jess’s Guitar Writeup

Challenge Description: Jess is pretty good at making music
1700X1700

Dev: Daphne

Hint! https://www.youtube.com/watch?v=QS1-K01mdXs

jess_sample (1).mp3

e8d1ce82eb35232ccc72d7eee7b8d909

-By Team <<Zh3ro>>

So we are given an .mp3 file the first thing that came to my mind was to open it in audacity and apply the filters and different setting and i spend couple of hours doing that and finally after talking with the author he told me to check the hint . The hint was a Gordon Ramsay video saying “IT’S RAW” all through out the video . So this is not a sound file hmm the .mp3 extension was a misdirection .I changed its extension to .raw and tried the tool called foremost on it but there was no luck , foremost was useless in this case. Then after a lot of googling i found a website called https://rawpixels.net/ which is used for analyzing .raw files .

You can’t see any flags here now but when you change the dimensions of this image to 1700x1700 ( its given in the Chall description ) You can see..

there you go , that’s the flag !!

Flag : rtcp{J3ss_i$_s0_t@lented}