To see the actual package name of the Google App installed on your device, connect to a PC, enable USB debugging, download the adb source from https://developer.google.com and run the following commands.
launch the adb Shell: adb shell
Show a list of all the packages: pm list packages
Scroll through the list of packages, you should see package: com.google....
If you might be a bit suspicious of using a jar from
a not-so-well-known fork of apktool (kikfox) ; or
a Google Drive link
You may be pleased to know that you can build it yourself rather easily from the official APKtool github site, following the easy-to-follow official instructions. It just takes a few minutes.
I tried with an apk that had been giving ...