MALICIOUS
170
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF is identified as malicious by ClamAV and an ML classifier, and heuristics indicate it's an image-based lure with repeated, invisible links. One such link points to 'http://ecselbd.com/rulesupdate/LastTerms_AXJ5.zip', which likely serves as a payload delivery mechanism. The PDF structure and the nature of the embedded link strongly suggest a phishing or social engineering attack aimed at delivering malware.
Machine Learning
- Nyx PDF Classifier malicious score 0.8588
Heuristics 4
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Invisible/repeated PDF links deliver payload file critical PDF_REPEATED_PAYLOAD_LINK_LUREPDF uses invisible link annotations and points to a direct payload download. Repeated invisible links or lure-like payload names such as document/unlock/verify archives match malware-delivery PDF carriers where the page is only a prompt and the real payload is fetched from the linked URL.
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ClamAV: Pdf.Trojan.QBot-9982402-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Trojan.QBot-9982402-0
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Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LUREPDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 181 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
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Embedded URL info EMBEDDED_URLOne or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.URL http://ecselbd.com/rulesupdate/LastTerms_AXJ5.zip
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