MALICIOUS
170
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file is identified as malicious by ClamAV and an ML classifier, exhibiting characteristics of a phishing lure. It contains invisible and repeated links pointing to a URL that delivers a ZIP payload, consistent with the IcedID banking trojan's distribution methods. The document body was unreadable, but the heuristics strongly indicate a malicious intent to download and execute further malware.
Machine Learning
- Nyx PDF Classifier malicious score 0.9601
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.IcedID-9983378-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Trojan.IcedID-9983378-0
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Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LUREPDF has 2 image(s), only 0 text block(s), carries a click-outward action, and is only 152 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 https://firebasestorage.googleapis.com/v0/b/shaped-aegis-371721.appspot.com/o/YPxRAfCC8Q%2FDocs_REF-1228%23109.zip?alt=media&token=927bc34c-c35d-4888-a1bd-6a73a233a709
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