From: "UPSBillingCenter" [512A03797@songburi.com]The malicious payload is at [donotclick]minus.preciseenginewarehouse.com/links/assure_numb_engineers.php hosted on 188.8.131.52 (DirectSpace Networks, US) which also houses the following suspect domains:
Subject: Your UPS Invoice is Ready
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Dear UPS Customer,
New invoice(s) are available for the consolidated payment plan(s) / account(s) enrolled in the UPS Billing Center
Please visit the UPS Billing Center to view and pay your invoice.
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To be precise, the subdomains seem malicious, the domains themselves appear to be legitimate ones where the domain account has been hacked. Blocking 184.108.40.206 would be prudent.