|Box Name :||Musical Stego|
|Play :||Musical Stego|
Hello, this one was an easy challenge based on audio steganography. Steganography is hiding a file/message inside of another file. Let’s start!
Who remixed the song?
The answer is in front of our eyes.
What link is hiding in the music?
On this one, we’ll use a tool called
Sonic Visualizer. Is a tool for analysing the contents of audio files. You can install it by using this command
apt install sonic-visualiser.
First open the file.
Then add spectrogram.
There is a QR code, play a bit with the filters so you can scan it.
The scan gives the answer
What does the found audio convert to? [CHECK HINT, LINK IS DEAD]
When we visit the link we see another audio file, it sounds like
beep boop that’s morse audio code. Let’s use a morse code audio decoder
We have the answer
What was the found password?
Because link is dead, hint says to use a github link
https://github.com/m00-git/XXXXXXXX just we have to replace
XXXXXX.. with the
LZKTB4ET from pastebin.
We have the password
What is the final flag?
Now we just have to use
steghide on the first audio file with the password we found before
Thank you for taking the time to read my writeup. If you don’t understand something from the writeup or want to ask me something feel free to contact me through discord(0xatom#8707) or send me a message through twitter 0xatom
Until next time keep pwning hard!