They make money from advertising, not from telecasting or streaming the World Cup as the matches can can be watched by various means for free. In fact, they may make more money from advertising than from subscription fees.
Transmedia's TransTV will live telecast all matches and their highlights. They have been advertising for weeks (http://www.transtv.co.id/). They will transmit on TV for free. However, since their channels are also available on the web, one can watch them on mobile or tablet via browser (not an app).
Indosat Ooredoo just offered unlimited YouTube access on its IM3 OTT: "Unlimited package now comes with an additional choice of 3 Days and 7 Days package. Enjoy unlimited access to YouTube and all popular apps from IDR 5,000 (about $0.50).