* The first few documents (1.doc through 3.doc) have metadata which says they were written by Warren Flood. However, the "last saved by" claims is was by Феликс Эдмундович. It also claims that it was created earlier today.
* The 4.doc file said the author was "Blake" and the company was "Grizli777" and it was last saved by "user" and created today.
* 5.doc claims to have been written by "jbs836" at the company "University of Texas at Austin". Again, last saved by "Феликс Эдмундович" and again, created earlier today.
* None of the excel files had anything interesting, except that their creation dates also all said today.
Research:
* There is a Warren Flood associated with the DNC (according to LinkedIn: https://www.linkedin.com/in/warrenflood).
* Google translates "Феликс Эдмундович" as "Felix", Bing and Prompt as "Felix Dzerzhinsky". Googleing "Felix Dzerzhinsky" turns up Felix Edmundovich Dzerzhinsky, the former Director of Cheka... an Russian internal security service. He's been dead 90 years, so I doubt it was really him though.
* Googling "Grizli777" seems to suggest that the user's copy was pirated. Nothing really to go on there.
* Googling "jbs836" finds people (talking about this subject) suggesting that it's James B. Steinberg (https://en.wikipedia.org/wiki/James_Steinberg) a Democratic politician who formerly worked for the University of Texas at Austin.
My Take:
* The files are either genuine or someone bothered to find some Democrats names to attach to them. I'm leaning toward genuine since they didn't clean up any other metadata.
* The files have at least passed through the hands of a Russian or someone who likes using former Russian spies as a pseudonym.
* There's no evidence that these files came from a DNC server and not, say, Warren Flood's laptop.
* There's no evidence that the individual who wrote this acted alone or that he is not working for a state.