One thing that strikes me with this malware is that it hits pretty much every single country. Don't hackers try to follow the proverbial "don't shit where you eat" proverb? They have nowhere to hide if they are identified now.
In that thought experiment, what could be the possible reason for attacking themselves so hard? Well, to give themselves more plausible deniability(and the whole attack would be done as an attempt to discredit the NSA)... but also to justify an agenda of technological sovereignty. Russia is in a tug of war with American corporations over where data is stored and they've even blocked the Microsoft owned linkdin. It's impossible to find an alternative to Windows(considering Russia is such a big PC gaming country), but who knows in 10-15 years.