The Telegram messenger app has been gaining popularity lately. Partly because of everything that is going on at Facebook (and WhatsApp). But at Telegram, it is sometimes too careful.
Difference at least
The screenshot below shows the fake app of Telegram (left) and the original Telegram app (right). The fake app was shown as Telegraph Chat and the Play Store description of the app was exactly the same as the original Telegram app. The only differences were that after the installation the term Telegram was changed to Telegraph Chat and that the icon was slightly modified.
Zscaler has also published a blog with the complete technical analysis of the fake app.