Translated to English:
Subject: Your bill
It's your bill.
Once properly de-obfuscated, the code reveals that it downloads two executable binaries from:
Both ese.tf and nvdtime.prs are PE files even though they have a different file extensions and share the following hash details:
These files are both NSIS compressed, which is a system used by developers to create Windows installers. Once properly decompressed and looking closer, you can spot Anti-VM code that tries to check for strings related to virtual machines and, if found, will cease any further execution of the malware with the purpose of avoiding sandbox execution or analysis. These are the same codes used by previous URSNIF variants.
URSNIF is using a new wave of mal-spam to propagate and is continuously evolving by using numerous ways to trick users to download files from their e-mails. The URSNIF threat actors also use script obfuscation, different file extensions, and even compress the binary differently to avoid malware detection.
Trustwave Secure Email Gateway can detect and block this threat at the gateway to avoid infection.