Malicious PDF — malware analysis report

Static analysis result for SHA-256 3f55cceaa74507e0…

MALICIOUS

PDF

43.8 KB Created: 2018-11-23 08:08:00 +03:00 Authoring application: Adobe PageMaker 6.5 (via Acrobat Distiller 5.0 (Windows))
MD5: b6f8ebe049c5da35f1cf72329faa252f SHA-1: 2410ebb80923ab5bc2d9ad85da6ff3ee9353a451 SHA-256: 3f55cceaa74507e0b64316821c665c78e79fa5648c3ab05794dded93fcb8e7bc
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded links to external websites, as indicated by the PDF_SEO_LINK_FARM heuristic. The ML classifier also flagged this PDF as malicious. The document body is heavily obfuscated and does not provide clear textual lures, but the sheer volume of links suggests a malicious intent, possibly for SEO manipulation or to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8224

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/in-ruins-the-knights-of-mayhem-book-2.pdf
    • http://www.gorillawalker.com/rodeo-clown-torque-dangerous-jobs.pdf
    • http://www.gorillawalker.com/gracious-spaces.pdf
    • http://www.gorillawalker.com/pride-against-prejudice-haitians-in-the-united-states-part-of.pdf
    • http://www.gorillawalker.com/focus-on-features.pdf
    • http://www.gorillawalker.com/illustrations-of-the-liturgical-homilies-of-gregory-nazianzenus-study-in.pdf
    • http://www.gorillawalker.com/fifty-million-acres-conflicts-over-kansas-land-policy-1854-1890.pdf
    • http://www.gorillawalker.com/hakase-mai-girl-e-japanese-edition-kindle-edition.pdf
    • http://www.gorillawalker.com/simple-italian-snacks.pdf
    • http://www.gorillawalker.com/geschichte-und-geschichten-die-kinder-und-jugendliteratur-und-das-kulturelle.pdf
    • http://www.gorillawalker.com/treasure-of-venice-the-pala-d-oro-of-saint-mark.pdf
    • http://www.gorillawalker.com/peekaboo-elmo-sesame-street-big-bird-s-favorites-board-books.pdf
    • http://www.gorillawalker.com/military-swords-of-japan-1868-1945.pdf
    • http://www.gorillawalker.com/mastering-mediation-education.pdf
    • http://www.gorillawalker.com/mason-jar-salads-and-more-50-layered-lunches-to-grab.pdf
    • http://www.gorillawalker.com/a-spectacle-of-dust-the-autobiography.pdf
    • http://www.gorillawalker.com/the-independence-principle-of-letters-of-credit-and-demand-guarantees.pdf
    • http://www.gorillawalker.com/my-first-menage-reluctant-menage-and-alpha-male-erotica.pdf
    • http://www.gorillawalker.com/how-to-get-your-book-published-free-in-minutes-and.pdf
    • http://www.gorillawalker.com/the-mumps-programming-language.pdf
    • http://www.gorillawalker.com/earth-resources-and-protection-series-solar-energy-resources-daguan-chinese.pdf
    • http://www.gorillawalker.com/mapa-ferroviario-del-peru-railroad-map-of-peru.pdf
    • http://www.gorillawalker.com/one-night-in-tehran-a-titus-ray-thriller.pdf
    • http://www.gorillawalker.com/figure-drawing-for-men-s-fashion-pepin-press-design-books.pdf
    • http://www.gorillawalker.com/fueling-freedom.pdf
    • http://www.gorillawalker.com/elder-law-forms-manual-essential-documents-for-representing-the-older.pdf
    • http://www.gorillawalker.com/performing-under-pressure-the-science-of-doing-your-best-when.pdf
    • http://www.gorillawalker.com/albert-einstein-philosopher-scientist-the-library-of-living-philosophers-volume.pdf
    • http://www.gorillawalker.com/jacques-hnizdovsky-woodcuts-and-etchings.pdf
    • http://www.gorillawalker.com/campbell-s-green-bean-casserole-recipe-kindle-edition.pdf
    • http://www.gorillawalker.com/she-walks-in-shadows.pdf
    • http://www.gorillawalker.com/communicable-diseases-a-global-perspective-modular-texts-series.pdf
    • http://www.gorillawalker.com/bound-pumped-full-in-the-dark-rough-aggressive-dominant-men.pdf
    • http://www.gorillawalker.com/general-higher-education-eleventh-five-year-national-planning-materials-planning.pdf
    • http://www.gorillawalker.com/the-immune-spirit-a-story-of-love-loss-and-healing.pdf
    • http://www.gorillawalker.com/hades-a-demonica-novella-1001-dark-nights-kindle-edition.pdf
    • http://www.gorillawalker.com/winston-churchill-quotes-facts.pdf
    • http://www.gorillawalker.com/finding-harmony-katie-annalise-book-3-kindle-edition.pdf
    • http://www.gorillawalker.com/california-serpentines-flora-vegetation-geology-soils-and-management-problems-uc.pdf
    • http://www.gorillawalker.com/the-family-reunion-with-an-introduction-and-notes-by-nevill.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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