# 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](https://github.com/HarshJolad/writeups-pvt/blob/master/YCTF%20Mini%202023/Cat_s_concert/AnsiChar/README.md)
* [concert.jpg](https://github.com/HarshJolad/writeups-pvt/blob/master/YCTF%20Mini%202023/Cat_s_concert/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.

```bash
$ 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](https://morsecode.world/international/decoder/audio-decoder-adaptive.html) we get the hidden message. ![flag](/files/43g05WK7ctnmXSWVP1zD)

## FLAG

```
xCTF{STEGOCHAMP}
```


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