Magic

ROOTED!

I love this kind of box and this one in particular make me learn something new! Here some hints:

Foothold: do you know an image can hide a lot of information? Maybe you just need the right tool.
User: just look around and you’ll find the first juicy information, that information can be used only in one way so let’s do it.
Root: know how Linux prioritize commands execution is the key, then I suggest you to use some tools like pspy and strings to better understand what’s happening.

Feel free to PM if you need help!

achille