The files names are random but just gives you an idea on format. The Sha256 hash list is based on word/exel/xml based malware. So far this morning it’s been crammed full of word and ex-ex-exel based malware, here are the Sha256 hashes just in case this helps anyone searching for hashes. The list of files includes: Copy_1_of_INV_86-09.03.2015.doc, Copy_4_of-INV.xls and Copy_0070XR.xls.”]
Source: http://sanesecurity.blogspot.com/2015/03/malware-madness-sha256-hashes.html