Malicious PDF — malware analysis report

Static analysis result for SHA-256 1986e064af61df96…

MALICIOUS

PDF

149.8 KB Created: 2022-10-14 15:09:02 -08:00 Authoring application: Draw (via LibreOffice 7.1)
MD5: 8b353878e24a35e54de1a15c84c84052 SHA-1: ad0e1957aac2d2f25b22576592bec3a478a8f808 SHA-256: 1986e064af61df96954e1abbb823ae444f98eb785ba46092690997b35622de5d
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF was identified as an image-only lure, a common tactic for phishing attacks. It contains a single embedded URL that utilizes a URL shortener, indicating an attempt to hide the ultimate destination. The heuristics strongly suggest this is a phishing document intended to trick the user into clicking the link.

Machine Learning

  • Nyx PDF Classifier clean score 0.0426

Heuristics 3

  • Image-only PDF lure links through URL shortener high PDF_IMAGE_LURE_SHORTENER_LINK
    PDF is image-heavy with little real text and its clickable action points to a URL shortener. This is a high-confidence credential-phishing carrier shape: the visible page is a screenshot-like prompt while the destination is hidden behind redirect infrastructure.
  • Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
    PDF has 2 image(s), only 0 text block(s), carries a click-outward action, and is only 149 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • Embedded URL info EMBEDDED_URL
    One 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://tinyurl.com/59d72kj3
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://www.aiim.org/pdfua/ns/id/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/

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