HollowFrame Loader Deploys Matryoshka Backdoor in Spear-Phishing Attack on Law Firm

HollowFrame Loader Deploys Matryoshka Backdoor in Spear-Phishing Attack on Law Firm

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Cybersecurity researchers have shed light on a previously undocumented Go-based loader framework called HollowFrame and a Rust-based malware family tracked as Matryoshka.

According to Blackpoint Cyber, the intrusion sequence begins with a spear-phishing message containing a link to an encrypted archive, which holds a Windows Shortcut (LNK). Executing the file triggers a multi-stage chain that

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