I'm afraid the detection by the ransom note name was probably a false positive. I'm not sure what ransomware it is quite yet, but it definitely is not Nemucod.
For Google's sake, here is the ransom note submitted ("DECRYPT.txt").
Hello. Your files have been encrypted due to a security problem with your PC.
If you want to restore them, write ID:[redacted 7 numbers] to the mail email@example.com
Example encrypted filenames:
All of the files also have this same potential filemarker of 12 bytes at the beginning.