A couple of months ago, I came across an intriguing .tmp file that was sent to me. The sender mentioned that their antivirus software had flagged and caught the file on their computer. Naturally, I decided to investigate further. Although the file was labeled as a .tmp file, running it through a file utility revealed that it was actually an MSI (Microsoft Software Installer) file.
To delve deeper into the MSI file, I utilized a helpful utility called msitools.