Recently (On March 18 2023 at 23:44), a new malspam campaign has been observed in the wild ( HERE ), which caused a significant amount of concern. This campaign is designed to distribute malicious emails, which contain a harmful payload that can infect a user’s system, steal sensitive information, or launch other types of attacks.

During the past 4 months Microsoft Onenote file format has been (ab)used as Malware carrier by different criminal groups. While the main infection vector is still on eMail side - so nothing really relevant to write on - the used techniques, the templates and the implemented code to inoculate Malware changed a lot. So it…