The host at this IP address (216.58.208.106) is either operated by cybercriminals or hosting compromised websites that are being used to distribute malware:
https://firebasestorage.googleapis.com/v0/b/dksloey-dukun.appspot.com/o/Firehack.apk?alt=media&token=661aeab2-e1cf-4889-869a-930b8860a823
https://firebasestorage.googleapis.com/v0/b/website-36d25.appspot.com/o/PO_RFQ_1407000525xlsx.jar?alt=media&token=bd527770-a983-4990-b45a-d690eef9f3ab
AS number: AS15169
AS name: GOOGLE
Hostname: sof01s11-in-f106.1e100.net