The .7z file could be bundled with a remote access trojan (RAT). The attacker could then:
Security and risks of unofficial downloads microsoft office 2013 - www.mysoftwarefree.com.7z
The file identified as is a compressed archive containing the installation files for Microsoft Office 2013, typically distributed by the third-party website MySoftwareFree . This version, codenamed "Office 15," was a landmark release that introduced deep cloud integration and a modern, touch-friendly interface. Key Features of Microsoft Office 2013 codenamed "Office 15