Malware is a multi-function dropper that can deliver second-stage malware and bypass image-based CAPTCHA challenges. Cybersecurity company Check Point spotted WAPDropper in a recent campaign and found that it subscribes victims to premium services from legitimate telecommunications providers in Malaysia and Thailand. The money-making scheme is simple: more calls to premium-rate numbers bring more profit to the cybercriminals who may identify or collaborate with the owners of special numbers. The malware is distributed via unofficial Android stores.
Source: https://www.bleepingcomputer.com/news/security/new-wapdropper-malware-stealthily-subscribes-you-to-premium-services/