Need hash-sum for checking original files from offline installer.
md5, sha1 - any popular.
Priority check main installer exe-file.

And i'm not sure, but i try check offline .exe installer in VirusTotal and found W32.Malware.Gen
www.virustotal.com
Please, help!

bullshit

w32.malware.gen = its a fake report and means something we don't know but "assume" is bad

I understand, but it's weird that exe-file wasn't check and this question wasn't up.
And this is alarming.

An overly zealous or poorly written AV heuristic, in an attempt to detect previously unknown attacks, will flag certain possibly bad but usually benign things as malicious. Stuff like writing to the registry, unzipping files then deleting them, making calls out to the Internet. Turns out, installing software is installing software, whether it's malware or a video game. Crappy AV is just too dumb to tell the difference between the two.

Here's what I've got for the latest .exe installer at this time (v4.1.1.3767641):

MD5
e2da307eb714d2e746048e8fb7d646a4

SHA1
43b5c7c4394b409ab55bcac49f610eabf625aa38