Cat's Concert 🎧🎵

Challenge Description

In the vibrant city of Technoville, there lived a renowned musician, Mr. Meow, who was famous for his unique compositions. Little did people know that hidden within his mesmerizing melodies was a message waiting to be deciphered.!!

Flag Formate : xCTF{}

Attached files

• AnsiChar

• concert.jpg

Solution

• Running strings, binwalk, exiftool on concert.jpg gives nothing useful.

• Using stegseek on concert.jpg we see theres a wav file hidden in the image.

$ stegseek --crack concert.jpg
StegSeek 0.6 - https://github.com/RickdeJager/StegSeek

[i] Found passphrase: "qwertyuioplkjhgfdsazxcvbnm"
[i] Original filename: "hidden.wav".
[i] Extracting to "concert.jpg.out".

• The wav file is a morse code.

• Using morse code decoder we get the hidden message.

FLAG

xCTF{STEGOCHAMP}