Out of the Sandbox: WikiLoader Digs Sophisticated Evasion

Proofpoint researchers identified a new malware we call WikiLoader. It was first identified in December 2022 being delivered by TA544, an actor that typically uses Ursnif malware to target Italian organizations. Proofpoint observed multiple subsequent campaigns, the majority of which targeted Italian organizations.

WikiLoader is a sophisticated downloader with the objective of installing a second malware payload. The malware contains interesting evasion techniques and custom implementation of code designed to make detection and analysis challenging.

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Source: Proofpoint