Malwarecritical
APT28 Deploys PRISMEX Malware in Campaign Targeting Ukraine and NATO Allies
Vulnerabilities mentioned
All| CVE | Vulnerability | CVSS | EPSS | Signals | Published |
|---|---|---|---|---|---|
| CVE-2026-21509 | Local Security Feature Bypass in Microsoft Office Under Active Exploitation | 7.8 | 71% | KEV | KEV |
| CVE-2026-21513 | MSHTML Security Feature Bypass in Windows Exploited in the Wild (CVE-2026-21513) | 8.8 | 16% | KEV | KEV |
Indicators of compromise
auto-extracted · verify before use · export allAll| Type | Indicator | Context |
|---|---|---|
| domain | filen.io | emory. PrismexStager , a COVENANT Grunt implant that abuses Filen.io cloud storage for C2. It's worth mentioning here that some |
| domain | wellnesscaremed.com | campaigns exploiting the two vulnerabilities is the domain "wellnesscaremed[.]com." This commonality, combined with the timing of the two e |
From the original article
3 min read at thehackernews.com
Ravie Lakshmanan Apr 08, 2026 Vulnerability / Cloud Security The Russian threat actor known as APT28 (aka Forest Blizzard and Pawn Storm) has been linked to a fresh spear-phishing campaign targeting Ukraine and its allies to deploy a previously undocumented malware suite codenamed PRISMEX .
By @TheHackersNews · thehackernews.com
A short excerpt; the article and its images belong to the publisher. Summary, key facts and assessment above are AI-written from the article and can be wrong.