Malicious PDF — malware analysis report

Static analysis result for SHA-256 1733aa8be1f178dd…

MALICIOUS

PDF

42.2 KB Created: 2018-11-26 20:27:22 +03:00 Authoring application: soft Xpansion Perfect PDF 5 Premium (via PDF Xpansion 5.7.8)
MD5: 571da98edbbe761db55ec8bbf94b7541 SHA-1: 372d2a2db316052f11fae4cf6e940dd8eb21c9e6 SHA-256: 1733aa8be1f178dd13376db056bc372b7a699366f7fad7bba234de9a86e3347f
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded URLs pointing to external PDF files, a technique often used for SEO manipulation or to distribute additional malicious content. The ML classifier also flagged this PDF as malicious. While no scripts were extracted, the sheer volume of links suggests a malicious intent to redirect the user to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9181

Heuristics 2

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://www.gorillawalker.com/ironman-hawaii-my-story-a-ten-year-dream-a-two.pdf
    • http://www.gorillawalker.com/murder-most-familiar-a-pattie-lansbury-cat-cozy-mystery-series.pdf
    • http://www.gorillawalker.com/rebel-heart-engines-of-liberty-1-volume-1.pdf
    • http://www.gorillawalker.com/stretching-20th-anniversary-revised-edition.pdf
    • http://www.gorillawalker.com/geographic-information-science-and-systems-4th-edition-print-replica-kindle.pdf
    • http://www.gorillawalker.com/afghan-journal-a-soldier-s-year-in-afghanistan.pdf
    • http://www.gorillawalker.com/the-great-good-place-cafes-coffee-shops-bookstores-bars-hair.pdf
    • http://www.gorillawalker.com/the-complete-handbook-of-cctv.pdf
    • http://www.gorillawalker.com/les-nouveaux-thrillers-erotiques-12-suspenses-insoutenables-pour-fremir-de.pdf
    • http://www.gorillawalker.com/garry-kasparov-on-garry-kasparov-part-1-1973-1985.pdf
    • http://www.gorillawalker.com/frolic-vol-07-no-06-jun-1958-the-magazine-of.pdf
    • http://www.gorillawalker.com/the-constitution-of-the-united-states-a-primer-for-the.pdf
    • http://www.gorillawalker.com/glorious-women-award-winning-sermons-about-women.pdf
    • http://www.gorillawalker.com/an-american-dream-a-novel.pdf
    • http://www.gorillawalker.com/statistical-modelling-of-icu-data-statistics-in-practice.pdf
    • http://www.gorillawalker.com/chinese-food-industry-50-years-1949-1999-hardcover-chinese-edition.pdf
    • http://www.gorillawalker.com/dictionary-of-symbolism-cultural-icons-and-the-meanings-behind-them.pdf
    • http://www.gorillawalker.com/flash-techniques-for-location-portraiture-single-and-multiple-flash-lighting.pdf
    • http://www.gorillawalker.com/the-business-of-bridal-beauty.pdf
    • http://www.gorillawalker.com/clark-the-shark-takes-heart.pdf
    • http://www.gorillawalker.com/the-mantle-adorned-translated-with-further-poetic-ornaments.pdf
    • http://www.gorillawalker.com/the-consumer-guide-to-vortex-shedding-and-fluidic-flowmeters-second.pdf
    • http://www.gorillawalker.com/the-millionaire-map-your-ultimate-guide-to-creating-enjoying-and.pdf
    • http://www.gorillawalker.com/working-the-sahel.pdf
    • http://www.gorillawalker.com/pimsleur-french-conversational-course-level-1-lessons-1-16-cd.pdf
    • http://www.gorillawalker.com/rethinking-the-economics-of-war-the-intersection-of-need-creed.pdf
    • http://www.gorillawalker.com/politics-in-states-and-communities-12th-edition.pdf
    • http://www.gorillawalker.com/you-wouldn-t-want-to-live-without-electricity.pdf
    • http://www.gorillawalker.com/closet-cultivator-1991-publication.pdf
    • http://www.gorillawalker.com/the-kirk-franklin-collection.pdf
    • http://www.gorillawalker.com/the-face-to-face-book-why-real-relationships-rule-in.pdf
    • http://www.gorillawalker.com/common-core-math-4-today-grade-1-daily-skill-practice.pdf
    • http://www.gorillawalker.com/behind-the-gates-life-security-and-the-pursuit-of-happiness.pdf
    • http://www.gorillawalker.com/the-politics-of-urban-water-changing-waterscapes-in-amsterdam.pdf
    • http://www.gorillawalker.com/touch-and-feel-ponies.pdf
    • http://www.gorillawalker.com/on-the-grill-a-complete-guide-to-hot-smoking-and.pdf
    • http://www.gorillawalker.com/psychic-power-for-teens-get-what-you-want-at-home.pdf
    • http://www.gorillawalker.com/the-cleaner-of-chartres.pdf
    • http://www.gorillawalker.com/gangsterland-a-novel.pdf
    • http://www.gorillawalker.com/the-best-ever-book-of-scottish-jokes-lots-and-lots.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://www.aiim.org/pdfa/ns/extension/
    • http://www.aiim.org/pdfa/ns/schema#
    • http://www.aiim.org/pdfa/ns/property#
    • http://www.aiim.org/pdfa/ns/id/

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