This apparently harmless application on PDF, managed to take control of our mobile phone.
One of the basic rules to avoid infecting our mobile phone with malware is basically never to install applications outside the Google application store, seemingly simple advice, but that there are many users who do not follow the letter, but when you download a malicious application from Google Play and get infected, the thing is more serious.
Recently the VirusTotal website has located a threat in the form of a PDF reading and editing application (PDF+), which with a fairly simple procedure, was able to take control of the user's device.
Although Google has already withdrawn it, it has previously been among the top positions in the productivity category, being downloaded more than 100,000 times.
When the application was installed, a pop-up window appeared in which the user was invited to install a Flash Player update through an external APK, and this is when things were already strange.
If the user decides to download it and grant the necessary permissions, the terminal will be infected. The banking Trojan asked for different accesses to manage the device, such as access to files, viewing stored passwords, or various accessibility issues to control the phone screen.
This is a new way that cybercriminals use to, through the official Google store, launch some type of malicious application that can take control of our device, trying to know our access credentials to different banking applications.
If it sounds like you have had this application, you should check that it is not really installed. If you find it, first clear the data and cache, and delete it.
On the other hand, it would be recommended that you also change the access codes to your different bank accounts, if you have these applications from your bank installed on the infected terminal.