Rating:

## Challenge

## 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.

![](1.png)

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

![](balls.png)

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

**WhiteHat{ddbae30b37b4e46bf54f91766fa02b42c4c0927d}**

## Solved by
destiny & blanky

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