Malicious PDF — malware analysis report

Static analysis result for SHA-256 59b711bd3f98c299…

MALICIOUS

PDF

42.0 KB Created: 2019-03-17 07:50:38 +03:00 Authoring application: LaTeX with hyperref package (via xdvipdfmx)
MD5: 9e88cae26f615142276790f1ed1db85a SHA-1: ae74949db879080ba61b5bca3e874be0f9a38728 SHA-256: 59b711bd3f98c2993e5f5ac43be18db53411fc1bc711901c757346e7085a4c1e
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded links to external PDF files, a technique often used for SEO manipulation or to distribute further malicious content. The ML classifier also flagged this PDF as malicious. No scripts were extracted from this sample, and the document body was not parsable.

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/paper-thin-layer-chromatography-and-electrophoresis.pdf
    • http://www.gorillawalker.com/food-dilemmas-in-modern-science.pdf
    • http://www.gorillawalker.com/whistled-languages-a-worldwide-inquiry-on-human-whistled-speech-kindle.pdf
    • http://www.gorillawalker.com/traumatized-a-collection-of-poems-kindle-edition.pdf
    • http://www.gorillawalker.com/energy-environment-and-climate.pdf
    • http://www.gorillawalker.com/travels-in-egypt-nubia-holy-land-mount-libanon-and-cyprus.pdf
    • http://www.gorillawalker.com/duets-for-strings-book-three-violin-belwin-course-for-strings.pdf
    • http://www.gorillawalker.com/sensation-a-superhero-novel.pdf
    • http://www.gorillawalker.com/how-to-pick-your-dragon-how-to-train-your-dragon.pdf
    • http://www.gorillawalker.com/to-give-an-edge-a-guide-for-new-parents-of.pdf
    • http://www.gorillawalker.com/residential-construction-costs-2010.pdf
    • http://www.gorillawalker.com/d-programming-language-specification-kindle-edition.pdf
    • http://www.gorillawalker.com/timing-volatility-measure-fear-and-greed-to-get-an-edge.pdf
    • http://www.gorillawalker.com/accounting-in-life-and-health-insurance-companies-student-guide.pdf
    • http://www.gorillawalker.com/wolfsbane-aralorn.pdf
    • http://www.gorillawalker.com/the-electrical-properties-of-metals-and-alloys-dover-books-on.pdf
    • http://www.gorillawalker.com/my-life-totally-worse-than-death.pdf
    • http://www.gorillawalker.com/when-i-grow-up-a-look-at-10-future-careers.pdf
    • http://www.gorillawalker.com/south-lake-tahoe-climbing.pdf
    • http://www.gorillawalker.com/spon-s-mechanical-and-electrical-services-price-book-1995-spon.pdf
    • http://www.gorillawalker.com/smash-pop-hits-1999-2000-special-edition-piano-vocal-chords.pdf
    • http://www.gorillawalker.com/nox-aurumque-eric-whitacre-satb-divisi-a-cappella-satb-acappel.pdf
    • http://www.gorillawalker.com/design-anthropology-theory-and-practice.pdf
    • http://www.gorillawalker.com/the-vitamin-cure-for-chronic-fatigue-syndrome-how-to-prevent.pdf
    • http://www.gorillawalker.com/the-robbers-cave-experiment-intergroup-conflict-and-cooperation-orig-pub.pdf
    • http://www.gorillawalker.com/the-dental-clinics-of-north-america-adult-orthodontics-volume-32.pdf
    • http://www.gorillawalker.com/iec-60318-3-ed-1-0-b-1998-electroacoustics-simulators.pdf
    • http://www.gorillawalker.com/souls-of-megiddo-the-caretakers-volume-1.pdf
    • http://www.gorillawalker.com/enhancing-children-s-conceptual-understanding-of-mathematics-through-chartworld-software.pdf
    • http://www.gorillawalker.com/the-bahamas-a-family-of-islands-macmillan-caribbean-guides.pdf
    • http://www.gorillawalker.com/beer-the-ultimate-world-tour.pdf
    • http://www.gorillawalker.com/atlas-of-endocrine-organs-vertebrates-and-invertebrates.pdf
    • http://www.gorillawalker.com/pregnancy-cooking-and-nutrition-for-dummies.pdf
    • http://www.gorillawalker.com/filthy-4-a-dark-erotic-serial-kindle-edition.pdf
    • http://www.gorillawalker.com/somewhere-along-the-way-the-andrades-book-4-kindle-edition.pdf
    • http://www.gorillawalker.com/good-clinical-practice-ii-praxis-der-studiendurchfuhrung.pdf
    • http://www.gorillawalker.com/web-site-design-made-easy-learn-html-xhtml-and-css.pdf
    • http://www.gorillawalker.com/selected-recipes-of-greek-cooking.pdf
    • http://www.gorillawalker.com/ramanujan-s-notebooks-part-iii-pt-3.pdf
    • http://www.gorillawalker.com/ball-redbook-volume-2-crop-production-17th-edition.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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