I tried to search for it on Google Playstore but I don't see if as the original electrum, wallet keeps coming up, probably because I have it installed. If possible, please include the malicious app's link so that I can help report from side.
https://play.google.com/store/apps/details?id=com.e.l.e.c.t.r.u.m.pro
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You were probably searching with the key word "electrum", adding a bit of tweak to it like "electrum cold storage" would reveal a number of fake and phishing sites
i downloaded one actually coinomi just recently to try it out and i hope it isn't a fake one because i have already transferred a bit of coin there.
I do not use coinomi wallet and cannot ascertain now if it can be verified using a signature, but I remember it isn't open source, which is a huge red flag. If you're going to use it, I'll recommend you only keep very small amounts there as the wallet is not highly recommended.
Rather than downloading directly from play store, you could follow the official website which would usually have a link to the app.