Malicious PDF — malware analysis report

Static analysis result for SHA-256 66faf5064ad24cdf…

MALICIOUS

PDF

231.9 KB Created: 2017-11-08 12:00:42 -05:00 Authoring application: Microsoft® Word 2016
MD5: bafb0638ccf634b52c77a58aff5c0d54 SHA-1: a4a861a1e121bfe98db52f85bd5e3b9aacf8d474 SHA-256: 66faf5064ad24cdfd39c3bbef2f9df96a513daa6e02571406ff6056e6634e3cf
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF is an image-only document designed as a lure, indicated by the PDF_IMAGE_LURE heuristic. It contains a shortened URL, http://bit.ly/2zthlst, which is a common tactic for phishing or malware distribution. The URL is likely used to redirect the user to a malicious site.

Machine Learning

  • Nyx PDF Classifier clean score 0.0333

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 1 image(s), only 0 text block(s), carries a click-outward action, and is only 231 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 http://bit.ly/2zthlst
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://ns.adobe.com/pdf/1.3/
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/

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