As Prevailion Team reported,
MasterManna Trojan Malware uses mass phishing emails with malicious attachments sent to crypto investors.
Step 1 - Phishing E-Mails
Step 2 - Infected Document Attachments
Step 3 - Bitly Link Redirection to TeamMana Blogspot
Step 4 - Creating Scheduled Tasks and Registry Keys
Step 5 - Downloading and Loading the Trojan
Step 6 - Analysis of the Process Hollower and Trojan
Pretty well designed attack. Its great you spreading knowledge, even if warning about 1 trojan threat from 500 out there, its spreading awareness about security.
Dont open unknown attachments or open/execute unknown files on your smartphone/PC.
This simplep rule won't get you infected that easily. It will protect from around 95% of threats i bet.