Researchers discovered a new malware that rapidly changing its sophisticated behavior in order to escape from the email security protection and infection the victims.
It’s very common that threat actors spreading countless malware via email campaigns, at the same time email security providers are keep fighting with them to block and terminate it.
But attackers using sophisticated techniques to evade security detection leads to increase the success ratio of the infection.
In this case, malspam emails are being sent to the targeted victims using automatically downloads a Word template using a .doc extension.
Unlike many attacks that use a single pattern with slight customizations, this attack uses a variety of different subject lines, email content, email addresses, display name spoofs, and destination URLs.