TIgor4eg

This plugin takes tweets from public profile and posts to VK.com(VKontekte).
Plugin stores last 50 tweets. New tweets are checked every 10 minytes (depends on WP-Cron) and every time you visit settings page. All links appear unshorted. First link in tweet is parsed as attachement to VK Wall post. Twitter usernames will appear as a link to twitter profile.

Twi2VK

This plugin posts twitter statuses to VK.com

macgirvin

This plugin allows you to cross post to your Redmatrix account.
**Note, this plugin converts the html from wordpress into bbcode. 
The bbcode conversion doesn’t handle height and width of an image, so be warned that if you post a very large image that is resized via height and with attributes, those attributes won’t be honored in the resultant post.

Twi2VK vs Redmatrix_WP