Malicious PDF — malware analysis report

Static analysis result for SHA-256 965d2024fb1d96be…

MALICIOUS

PDF

42.1 KB Created: 2018-11-26 20:06:14 +03:00 Authoring application: PScript5.dll Version 5.2 (via Acrobat Distiller 5.0.5 (Windows))
MD5: e2af400ba63bc1bd376fdc05dd259b32 SHA-1: 28948bc1ecc51ed41adf856bc1e9636ea2123b3b SHA-256: 965d2024fb1d96be61f0cce5cfa581186ee7bbd14fd626f515ff3e11e4840b67
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment

The PDF contains a large number of embedded links to external PDF files, a technique often used for SEO manipulation or to distribute malicious content. The ML classifier also flagged this PDF as malicious. No scripts were extracted, and the document body was heavily obfuscated, making it difficult to determine the exact payload or user-facing lure.

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/you-ll-always-be-my-baby.pdf
    • http://www.gorillawalker.com/prom-impossible.pdf
    • http://www.gorillawalker.com/in-brazil-you-would-say-universo-paralello-twisted-travel-tales.pdf
    • http://www.gorillawalker.com/meditation-the-joyful-art-of-persistence-kindle-edition.pdf
    • http://www.gorillawalker.com/commemorating-the-50th-anniversary-of-brown-v-board-of-education.pdf
    • http://www.gorillawalker.com/e-z-american-sign-language-barron-s-e-z-series.pdf
    • http://www.gorillawalker.com/football-in-the-blood-my-autobiography.pdf
    • http://www.gorillawalker.com/programmer-s-guide-to-fortran-90.pdf
    • http://www.gorillawalker.com/social-security-benefits-for-women.pdf
    • http://www.gorillawalker.com/nidi-violati-italian-edition-kindle-edition.pdf
    • http://www.gorillawalker.com/acret-s-california-construction-laws-annotated-1998-edition.pdf
    • http://www.gorillawalker.com/semi-presidentialism-in-central-and-eastern-europe.pdf
    • http://www.gorillawalker.com/views-on-vegas-a-journey-beyond-the-famous-strip.pdf
    • http://www.gorillawalker.com/mis-abuelos-y-yo-my-grandparents-and-i-spanish-edition.pdf
    • http://www.gorillawalker.com/social-behavior-of-the-bees.pdf
    • http://www.gorillawalker.com/gabriel-s-palace-jewish-mystical-tales.pdf
    • http://www.gorillawalker.com/far-from-the-usual.pdf
    • http://www.gorillawalker.com/6-andalusian-folk-songs-and-dances-for-flamenco-guitar.pdf
    • http://www.gorillawalker.com/analysis-of-algorithms-an-active-learning-approach.pdf
    • http://www.gorillawalker.com/a-tisket-a-tasket.pdf
    • http://www.gorillawalker.com/caribbean-reasonings-the-george-lamming-reader-the-aesthetics-of-decolonisation.pdf
    • http://www.gorillawalker.com/the-hunt-of-the-unicorn.pdf
    • http://www.gorillawalker.com/informix-sql-tutorial-and-reference.pdf
    • http://www.gorillawalker.com/le-stretching-pour-tre-et-rester-en-forme.pdf
    • http://www.gorillawalker.com/electromagnetic-wave-propagation-radiation-and-scattering.pdf
    • http://www.gorillawalker.com/junie-b-jones-granjera-spanish-edition.pdf
    • http://www.gorillawalker.com/the-erotic-art.pdf
    • http://www.gorillawalker.com/death-in-the-clouds-a-hercule-poirot-mystery-mystery-masters.pdf
    • http://www.gorillawalker.com/garfield-will-eat-for-food-garfield-series-book-48.pdf
    • http://www.gorillawalker.com/christmas-in-my-heart-book-18.pdf
    • http://www.gorillawalker.com/basic-genetics-a-primer-covering-molecular-composition-of-genetic-material.pdf
    • http://www.gorillawalker.com/the-mole-sisters-and-the-cool-breeze.pdf
    • http://www.gorillawalker.com/dr-xargle-s-book-of-earth-weather.pdf
    • http://www.gorillawalker.com/dressed-a-century-of-hollywood-costume-design.pdf
    • http://www.gorillawalker.com/the-stormrider-surf-guide-iceland-and-scandinavia-the-stormrider-surf.pdf
    • http://www.gorillawalker.com/cultural-psychology-second-edition.pdf
    • http://www.gorillawalker.com/applied-single-variable-calculus-for-loyola-university-chicago.pdf
    • http://www.gorillawalker.com/mystic-union-an-essay-in-the-phenomenology-of-mysticism-cornell.pdf
    • http://www.gorillawalker.com/united-we-stand.pdf
    • http://www.gorillawalker.com/milena-joy-making-your-statement-with-image-consulting.pdf
    • http://www.gorillawalker.com/e-z-american-si
    • 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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