INTEL_REPORT
The Hacker News · published 7/20/2026, 2:33:43 PM · TLP amber
Summary
Ingested excerpt (first ~500 chars of normalized text).
HollowGraph Malware Hides C2 and Stolen Files in Microsoft 365 Events Dated 2050 A newly discovered espionage implant has been using a hijacked Microsoft 365 calendar as its command channel, planting operator instructions and smuggling out stolen files as attachments on calendar events dated to the year 2050. Group-IB, which named the malware HollowGraph, says the approach moves tasking and stolen data through legitimate Microsoft Graph API traffic, so the activity looks Ho…
https://thehackernews.com/2026/07/hollowgraph-malware-hides-c2-and-stolen.html
sha256:b1aa55c157e9a7196914ddea558b710158149ecc5cec9dd56b6d0b5f2da938be
What we pulled out
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Indicators
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Malware families
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Threat actors mentioned
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ATT&CK techniques
MITRE IDs referenced in text and present in local technique table.
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