A zip attachment contains a img with an exe: the malware. The other, a pdf downloading a zip with an exe: the same malware. The data is exfiltrated via SMTP.
Cybercrime, a new Formbook campaign exploits a fake email from China

A new Formbook campaign exploits a fake email from China. The “inquiry_pdf.rar” attachment contains the “ayeez.exe” file: the malware
Formbook hides inside a fake RFQ-themed email from China.
The “inquiry_pdf.rar” attachment contains the “ayeez.exe” file: the malware. Formbook, through the keylogger function, is able to acquire everything that the user types. Furthermore, it can steal email and browser credentials as well as take screenshots. Finally, it has the ability to remotely issue commands to the infected PC, such as downloading additional payloads or updating existing ones.