Possible bug? Social Marketing strange behavior when direct install (not via dashboard)

I installed social marketing by uploading it to a site (not via the WPMU dashboard). Once installed, and activated, I get a message that it needs upgrade.

The weird thing is when I clicked to upgrade, it actually installed a completely different plugin from a different author!!! and gave this URL as the plugin page: URL: http://wordpress.org/plugins/socialmarketing/

How did this happen?

I never even visited this plugin let alone download or use it!!!