Malicious PDF — malware analysis report

Static analysis result for SHA-256 4fd9347f4ce5bc8b…

MALICIOUS

PDF

40.8 KB Created: 2019-03-16 14:28:43 +03:00 Authoring application: FrameMaker 5.5.6. (via Acrobat Distiller 4.05 for Sparc Solaris)
MD5: aea3d23cd52a793043f063a8d55cdb6e SHA-1: 3e6ec63fa58054993f70540e3e1c9ae1620123f7 SHA-256: 4fd9347f4ce5bc8b0ac295b3f17d991e0e5525bc42d757c4f621ac05b82c20c5
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment

The PDF contains a significant number of external links, as indicated by the PDF_SEO_LINK_FARM heuristic. The ML classifier also flagged the document as malicious. While no scripts were extracted, the sheer volume of links suggests an attempt to manipulate search engine results or to lure users to potentially malicious external sites. The document body is heavily obfuscated and unreadable.

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/children-s-crusade-full-score-faber-edition.pdf
    • http://www.gorillawalker.com/classical-algebraic-geometry-a-modern-view.pdf
    • http://www.gorillawalker.com/once-upon-a-time-in-bliss-nights-in-bliss-colorado.pdf
    • http://www.gorillawalker.com/instant-psychopharmacology-third-edition.pdf
    • http://www.gorillawalker.com/transnational-corporations-and-international-production-concepts-theories-and-effects.pdf
    • http://www.gorillawalker.com/the-encyclopedia-of-superheroes-on-film-and-television-hardcover-2008.pdf
    • http://www.gorillawalker.com/life-under-mao-zedong-s-rule.pdf
    • http://www.gorillawalker.com/morning-pilates-workouts-morning-workout-series.pdf
    • http://www.gorillawalker.com/women-of-the-word-how-to-study-the-bible-with.pdf
    • http://www.gorillawalker.com/jerry-s-madness.pdf
    • http://www.gorillawalker.com/the-1979-book-of-common-prayer-with-additional-resources.pdf
    • http://www.gorillawalker.com/jung-and-tarot-an-archetypal-journey.pdf
    • http://www.gorillawalker.com/professional-real-estate-development-the-uli-guide-to-the-business.pdf
    • http://www.gorillawalker.com/a-taoist-classic-the-book-of-lao-zi.pdf
    • http://www.gorillawalker.com/lesbian-and-bisexual-women-s-mental-health.pdf
    • http://www.gorillawalker.com/point-of-departure-19-stories-of-youth-and-discovery.pdf
    • http://www.gorillawalker.com/the-prism-of-just-war-justice-international-law-and-global.pdf
    • http://www.gorillawalker.com/obsessive-love-when-passion-holds-you-prisoner.pdf
    • http://www.gorillawalker.com/bondage-or-dare-laste-chance-bondage-inc-book-22.pdf
    • http://www.gorillawalker.com/folk-traditions-of-the-arab-world-a-guide-to-motif.pdf
    • http://www.gorillawalker.com/heavy-lifting-the-job-of-the-american-legislature.pdf
    • http://www.gorillawalker.com/revelaciones-del-arte-popular-mexicano-spanish-edition.pdf
    • http://www.gorillawalker.com/new-testament-essays.pdf
    • http://www.gorillawalker.com/selected-silicate-minerals-and-their-asbestiform-varieties-mineralogical-definition-sand.pdf
    • http://www.gorillawalker.com/dream-theater-black-clouds-silver-linings-book-authentic-guitar-tab.pdf
    • http://www.gorillawalker.com/ivy-and-bean-no-news-is-good-news-book-8.pdf
    • http://www.gorillawalker.com/a-perfect-pet-for-peyton-a-5-love-languages-discovery.pdf
    • http://www.gorillawalker.com/the-big-question-hank-the-cowdog.pdf
    • http://www.gorillawalker.com/toddler-learning-games-33-creative-toddler-learning-games-that-your.pdf
    • http://www.gorillawalker.com/sheet-music-6-from-this-broadway-show-songs-getting-to.pdf
    • http://www.gorillawalker.com/the-best-australian-poems-2010.pdf
    • http://www.gorillawalker.com/it-s-hard-to-dribble-with-your-feet-sports-illustrated.pdf
    • http://www.gorillawalker.com/smarter-than-we-think-more-messages-about-math-teaching-and.pdf
    • http://www.gorillawalker.com/legendary-the-legendary-series.pdf
    • http://www.gorillawalker.com/bakewise-the-hows-and-whys-of-successful-baking-with-over.pdf
    • http://www.gorillawalker.com/40-years-of-chez-panisse-the-power-of-gathering-by.pdf
    • http://www.gorillawalker.com/resolu.pdf
    • http://www.gorillawalker.com/surgical-atlas-of-airway-and-facial-trauma-comprehensive-surgical-atlases.pdf
    • http://www.gorillawalker.com/hazards-and-risks-of-earthquakes-and-volcanoes.pdf
    • http://www.gorillawalker.com/the-ultimate-guide-to-reality-based-self-defense.pdf
    • http://www.gorillawalker.com/morning-pil
    • 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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