Frequency
1
occurrences
First Seen
January 19, 2026
Last Seen
January 19, 2026
Pdf24 App is a technology platform commonly used for PDF creation and manipulation.
Overview
Pdf24 App is a technology platform commonly used for PDF creation and manipulation. Researchers have uncovered the PDFSIDER malware built to provide long-term, covert system access by leveraging Pdf24 App as part of its operation, illustrating how legitimate software ecosystems can be abused to gain persistence. This finding highlights cybersecurity risks around software tooling and the potential for abuse of widely trusted PDF applications.
Related Threat Clusters
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PDFSider Malware Targets Fortune 100 Finance Firm with Covert Backdoor Access
A new malware strain named PDFSider has been deployed on the network of a Fortune 100 company in the finance sector. The attackers utilized social engineering tactics to gain remote access and installed an encrypted…
2 articles · Updated January 19, 2026
Recent Intelligence Reports
- Researchers Uncover PDFSIDER Malware Built for Long-Term, Covert System Access — Infosecurity-Magazine · January 19, 2026