Malicious PDF — malware analysis report

Static analysis result for SHA-256 c020bd21e83f0c82…

MALICIOUS

PDF

42.0 KB Created: 2019-04-08 19:52:28 +03:00 Authoring application: QuarkXPress(tm) 6.1
MD5: bdce14458b22b7b0a0462bf118adb05d SHA-1: eef7dadf4c2e9ce8c3da74fc096640207a3f828d SHA-256: c020bd21e83f0c82a6522c871e76bef3212676eeaef9c59337ab646370e37486
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic. This suggests the document is not intended for legitimate reading but rather to manipulate search engine rankings or redirect users to potentially malicious content hosted on the 'gorillawalker.com' domain. The ML classifier also flagged this PDF as malicious with high confidence. No scripts were extracted from this sample.

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/clinical-handbook-of-psychological-disorders-fourth-edition-a-step-by.pdf
    • http://www.gorillawalker.com/where-the-pavement-ends-one-woman-s-bicycle-trip-through.pdf
    • http://www.gorillawalker.com/a-call-for-cultural-symboisis-essay-series-52.pdf
    • http://www.gorillawalker.com/the-songs-of-donovan-piano-vocal-guitar-artist-songbook.pdf
    • http://www.gorillawalker.com/maternity-and-women-s-health-care-text-and-elsevier-adaptive.pdf
    • http://www.gorillawalker.com/intelligent-automatic-generation-control.pdf
    • http://www.gorillawalker.com/the-planets-hawkes-pocket-scores-no-22.pdf
    • http://www.gorillawalker.com/crimson.pdf
    • http://www.gorillawalker.com/round-the-world-cooking-library-british-and-irish-cooking-traditional.pdf
    • http://www.gorillawalker.com/blank-cookbook-chocolate-recipes-cakes-cookies-and-pies-oh-my.pdf
    • http://www.gorillawalker.com/codex-borgia-eine-altmexikanische-bilderschrift-der-bibliothek-der-congregatio-de.pdf
    • http://www.gorillawalker.com/used-honda-civic-buyer-s-guide-2001-present.pdf
    • http://www.gorillawalker.com/to-the-front-and-back-a-west-virginia-marine-fights.pdf
    • http://www.gorillawalker.com/the-puritans-and-music-in-england-and-new-england.pdf
    • http://www.gorillawalker.com/examination-of-the-shoulder-the-complete-guide.pdf
    • http://www.gorillawalker.com/ode-to-joy-for-alto-saxophone-and-piano-by-ludwig.pdf
    • http://www.gorillawalker.com/panama-s-poor-victims-agents-and-historymakers.pdf
    • http://www.gorillawalker.com/official-wallace-gromit-2010-calendar.pdf
    • http://www.gorillawalker.com/put-your-name-on-it-decadent-delight-book-4.pdf
    • http://www.gorillawalker.com/masterpieces-of-terror-and-the-supernatural.pdf
    • http://www.gorillawalker.com/the-darling.pdf
    • http://www.gorillawalker.com/smith-wesson-pocket-guide.pdf
    • http://www.gorillawalker.com/the-non-withdrawal-method-4.pdf
    • http://www.gorillawalker.com/words-phrases-clauses.pdf
    • http://www.gorillawalker.com/the-psychology-of-legitimacy-emerging-perspectives-on-ideology-justice-and.pdf
    • http://www.gorillawalker.com/beauty-and-the-beasts.pdf
    • http://www.gorillawalker.com/nonparametric-statistics-for-the-behavioral-sciences.pdf
    • http://www.gorillawalker.com/bizarre-beast-battles.pdf
    • http://www.gorillawalker.com/graphics-tools-the-jgt-editors-choice.pdf
    • http://www.gorillawalker.com/national-parks-of-australia-national-parks-of-the-world.pdf
    • http://www.gorillawalker.com/feasting-on-the-word-year-a-volume-3-pentecost-and.pdf
    • http://www.gorillawalker.com/world-history-connections-to-today-the-modern-era.pdf
    • http://www.gorillawalker.com/falling-from-the-sky-gravity-volume-2.pdf
    • http://www.gorillawalker.com/a-culture-of-high-performance-achieving-higher-quality-at-a.pdf
    • http://www.gorillawalker.com/the-transparent-body-a-cultural-analysis-of-medical-imaging-in.pdf
    • http://www.gorillawalker.com/hats-off-to-hair.pdf
    • http://www.gorillawalker.com/ugly-s-electrical-safety-and-nfpa-70e-2015-edition.pdf
    • http://www.gorillawalker.com/transition-and-turbulence-proceedings-of-a-symposium-conducted-by-the.pdf
    • http://www.gorillawalker.com/fecha-de-caducidad-spanish-edition.pdf
    • http://www.gorillawalker.com/the-library-at-mount-char.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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