Guccifer 2.0 dropped a new bundle of DNC documents on September 13, 2016! Like most dumps, there was no accompanying guide to make use of that dump easier. 😉 Not a criticism, just an observation.
As a starting point to make your use of that dump a little easier, I am posting an ls -lR listing of all the files in that dump, post extraction with 7z and unrar. Guccifer2.0-13Sept2016-filelist.txt.
I’m working on a list of the files most likely to be of interest. Look for that tomorrow.
I can advise that no credit card numbers were included in this dump.
Using:
grep --color -H -rn --include="*.txt" '\([345]\{1\}[0-9]\{3\}\|6011\)\{1\}[ -]\?[0-9]\{4\}[ -]\?[0-9]\{2\}[-]\?[0-9]\{2\}[ -]\?[0-9]\{1,4\}'
I checked all the .txt files for credit card numbers. (I manually checked the xsl/xslx files.)
There were “hits” but those were in Excel exports of vote calculations. Funny how credit card numbers don’t ever begin with “0.” as a prefix.
Since valid credit card numbers vary in length, I don’t know of an easy way to avoid that issue. So inspection of the files it was.