Malicious PDF — malware analysis report

Static analysis result for SHA-256 27c99358e1ec8c49…

MALICIOUS

PDF

43.0 KB Created: 2019-02-13 19:53:57 +03:00 Authoring application: PScript5.dll Version 5.2 (via Acrobat Distiller 5.0 (Windows))
MD5: e81998b4b4d4f8016c8371068e228415 SHA-1: 5b6926e86a0b2478eec2aac98d21a089b20b5335 SHA-256: 27c99358e1ec8c499e436027b9d5c49915df148d33dd20dec4de15b3c49708a5
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 pointing 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, preventing a deeper analysis of its specific intent beyond link distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8698

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/the-bible-and-the-future.pdf
    • http://www.gorillawalker.com/option-for-the-poor-a-hundred-years-of-vatican-social.pdf
    • http://www.gorillawalker.com/outlaws-of-the-marsh-3-volume-hardcover-set.pdf
    • http://www.gorillawalker.com/brunner-suddarth-s-textbook-of-medical-surgical-nursing-straight-a.pdf
    • http://www.gorillawalker.com/le-cordon-bleu-vegetables-and-salads-le-cordon-bleu-recipes.pdf
    • http://www.gorillawalker.com/cassie-brides-of-the-rockies.pdf
    • http://www.gorillawalker.com/creative-play-the-steiner-waldorf-way-expertise-and-toy-projects.pdf
    • http://www.gorillawalker.com/children-with-prenatal-alcohol-or-other-drug-exposure-weighing-the.pdf
    • http://www.gorillawalker.com/level-zero-the-nextworld-series-book-1.pdf
    • http://www.gorillawalker.com/la-musique-clarinet-1-and-2-parts-qty-2-each.pdf
    • http://www.gorillawalker.com/hothouse-kids-how-the-pressure-to-succeed-threatens-childhood.pdf
    • http://www.gorillawalker.com/touching-enlightenment-finding-realization-in-the-body.pdf
    • http://www.gorillawalker.com/singing-cowboy-stars-book-and-cd.pdf
    • http://www.gorillawalker.com/shutdown-anatomy-of-a-shipyard-closure.pdf
    • http://www.gorillawalker.com/origin-history-and-genealogy-of-the-buck-family-including-branches.pdf
    • http://www.gorillawalker.com/anticonvulsant-sulfonamides-in-epilepsy-and-other-neurological-disorders-neuroscience-research.pdf
    • http://www.gorillawalker.com/school-finance-a-policy-perspective.pdf
    • http://www.gorillawalker.com/the-latest-pocket-guidebook-to-luxor-environments-including-also-tut.pdf
    • http://www.gorillawalker.com/bart-simpson-class-clown-simpsons-comic-compilations.pdf
    • http://www.gorillawalker.com/healthy-women-healthy-lives-a-guide-to-preventing-disease-from.pdf
    • http://www.gorillawalker.com/codependent-no-more-how-to-stop-controlling-others-and-start.pdf
    • http://www.gorillawalker.com/handwriting-workbook-workbook-5-7.pdf
    • http://www.gorillawalker.com/get-yourself-organized-for-christmas-simple-steps-to-enjoying-the.pdf
    • http://www.gorillawalker.com/culture-and-weight-consciousness.pdf
    • http://www.gorillawalker.com/compressor-aerodynamics.pdf
    • http://www.gorillawalker.com/the-prehistoric-planet-galaxy-zack.pdf
    • http://www.gorillawalker.com/how-not-to-eat-pork-or-life-without-the-pig.pdf
    • http://www.gorillawalker.com/literary-history-of-persia-from-the-earliest-times-until-firdawsi.pdf
    • http://www.gorillawalker.com/encyclopaedia-of-india-pakistan-bangladesh.pdf
    • http://www.gorillawalker.com/britain-in-2010.pdf
    • http://www.gorillawalker.com/interactive-atlas-of-the-human-brain.pdf
    • http://www.gorillawalker.com/federal-deception-law-ftc-and-cfpb-rules-rico-false-claims.pdf
    • http://www.gorillawalker.com/managerial-ethics-in-healthcare-a-new-perspective.pdf
    • http://www.gorillawalker.com/heart-of-the-assassin-a-novel.pdf
    • http://www.gorillawalker.com/bates-guide-to-physical-examination-10th-ed-e-book-case.pdf
    • http://www.gorillawalker.com/inside-the-vacuum-tube.pdf
    • http://www.gorillawalker.com/bmw-3series-including-z3-92-98-haynes-repair-manuals.pdf
    • http://www.gorillawalker.com/natural-organic-matter-in-water-characterization-and-treatment-methods.pdf
    • http://www.gorillawalker.com/by-teresa-fisher-national-geographic-traveler-switzerland.pdf
    • http://www.gorillawalker.com/alternating-currents-an-article-from-new-criterion-html-digital.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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