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

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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id: 2336
uid: GieNE
insdate: 2026-07-31 18:10:11
title: HollowFrame Loader Deploys Matryoshka Backdoor in Spear-Phishing Attack on Law Firm
additional: 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
category: Cybersecurity
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guid: https://thehackernews.com/2026/07/hollowframe-loader-deploys-matryoshka.html
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