Using ```foremost``` [https://tools.kali.org/forensics/foremost](https://tools.kali.org/forensics/foremost) almost feels like cheating sometimes.
Download the docx, run ```foremost```. It finds a zip file. Not suprising as docx is just a type of zip archive. Inside the  archive is another docx... funny.
Run foremost again. Get another archive, extract it. And, while I expected another docx, I was suprised to find the flag.