## Challenge

Download the file and we get a video file with balls bouncing around. Video on youtube [here](https://www.youtube.com/watch?v=h-E8FpNbVeA).

## Solution

After analysing the video we noticed that certain frames contain a different image. So to analyse this better we extract all the frames of the video. There are many ways to do this but in this instance we used `ffmpeg`:

ffmpeg -i ~/path_to_file/for100.mp4 ./frames/for100-%06d.png

Sorting the extracted frames by size made it easy to identify 6 images which contain what look like ASCII art.


Using GIMP we play around with each line until we can make readable ASCII art.


The image says `sha1<b0und__ball>` so create the sha and submit it.


## Solved by
destiny & blanky

Original writeup (https://github.com/teamavidya/ctf/tree/master/2015_whitehat_quals/ca_mau%5Bforensics100%5D).