Watch Out! First-Ever Word Macro Malware for Apple Mac OS Discovered in the Wild

Here's the link to the two back up documents:

https://objective-see.com/blog/blog_0x17.html
http://thehackernews.com/2016/03/macro-malware-protection.html
As always, the best way to avoid these kinds of attacks is to just deny permission to enable macros from running when opening a suspicious Word document and avoid downloading software from third-party App Store or untrusted websites.