Malicious PDF — malware analysis report

Static analysis result for SHA-256 b551bce05c2b8a8f…

MALICIOUS

PDF

47.2 KB Created: 2018-11-30 20:35:18 +03:00 Authoring application: Microsoft Word: LaserWriter 8 8.6.5 (via Acrobat Distiller 4.0 for Macintosh)
MD5: 6223ed19dca8e1efd5bea4e2e534aa90 SHA-1: e63a1a617f4554082d920cded761c849815d8236 SHA-256: b551bce05c2b8a8f084965b41882b0ac11e5520f78fbafe4ba6a1f503fd0cecc
90 Risk Score

Malware Insights

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

The PDF document contains a large number of embedded external links, as indicated by the PDF_SEO_LINK_FARM heuristic. The ML classifier also flagged this PDF as malicious. The primary purpose appears to be SEO manipulation or redirecting users to potentially harmful content hosted on the 'gorillawalker.com' domain. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8527

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/stay-safe-crime-map-of-amsterdam-kindle-edition.pdf
    • http://www.gorillawalker.com/the-bishops-kings-and-saints-of-york-oxford-medieval-texts.pdf
    • http://www.gorillawalker.com/the-curassow-s-crest-myths-and-symbols-in-the-ceramics.pdf
    • http://www.gorillawalker.com/the-duff-designated-ugly-fat-friend-kindle-edition.pdf
    • http://www.gorillawalker.com/a-systematic-review-of-treatments-for-severe-psoriasis-health-technology.pdf
    • http://www.gorillawalker.com/electronic-cigarette-the-ultimate-guide-for-understanding-e-cigarettes-and.pdf
    • http://www.gorillawalker.com/the-sexual-adventures-of-sherlock-holmes.pdf
    • http://www.gorillawalker.com/carlos-lacerda-brazilian-crusader-volume-ii-the-years-1960-1977.pdf
    • http://www.gorillawalker.com/how-to-get-the-guy-capture-the-heart-of-mr.pdf
    • http://www.gorillawalker.com/stone-age-people-make-it-work-history-series.pdf
    • http://www.gorillawalker.com/cross-linked-liquid-crystalline-systems-from-rigid-polymer-networks-to.pdf
    • http://www.gorillawalker.com/structure-borne-sound-structural-vibrations-and-sound-radiation-at-audio.pdf
    • http://www.gorillawalker.com/advances-in-multicriteria-analysis-nonconvex-optimization-and-its-applications.pdf
    • http://www.gorillawalker.com/marie-anne-lagimodiere-the-incredible-story-of-louis-riel-s.pdf
    • http://www.gorillawalker.com/feedback-control-of-dynamic-systems-solutions-manual-3rd-edition.pdf
    • http://www.gorillawalker.com/fundamental-soil-science.pdf
    • http://www.gorillawalker.com/jesus-an-emerging-jewish-mosaic-jewish-perspectives-post-holocaust-jewish.pdf
    • http://www.gorillawalker.com/samurai-and-cotton-a-story-of-two-life-journeys-in.pdf
    • http://www.gorillawalker.com/beauty-of-another-order-photography-in-science.pdf
    • http://www.gorillawalker.com/gentleman-jim.pdf
    • http://www.gorillawalker.com/principles-of-football-paperback.pdf
    • http://www.gorillawalker.com/nobody-told-me-my-battle-with-postpartum-depression-and-obsessive.pdf
    • http://www.gorillawalker.com/object-of-devotion-medieval-english-alabaster-sculpture-from-the-victoria.pdf
    • http://www.gorillawalker.com/el-juego-de-la-viola-coleccion-caniqui.pdf
    • http://www.gorillawalker.com/bundle-personal-health-perspectives-and-lifestyles-with-cengagenow-printed-access.pdf
    • http://www.gorillawalker.com/baking-100-recipes.pdf
    • http://www.gorillawalker.com/the-avenger-roaring-heart-of-the-crucible-limited-hc.pdf
    • http://www.gorillawalker.com/the-nude-a-study-in-ideal-form.pdf
    • http://www.gorillawalker.com/healthy-weight-loss-foods-pt-1-kindle-edition.pdf
    • http://www.gorillawalker.com/iso-12078-2006-anhydrous-milk-fat-determination-of-sterol-composition.pdf
    • http://www.gorillawalker.com/rosdahl-10e-text-workbook-prepu-lynn-3e-text-checklists-timby.pdf
    • http://www.gorillawalker.com/conceptual-physics-a-high-school-physics-program-teacher-s-edition.pdf
    • http://www.gorillawalker.com/silent-voices.pdf
    • http://www.gorillawalker.com/international-copyright.pdf
    • http://www.gorillawalker.com/boy-one-child-s-fight-to-survive-in-the-brutal.pdf
    • http://www.gorillawalker.com/catalog-it-a-guide-to-cataloging-school-library-materials-2nd.pdf
    • http://www.gorillawalker.com/dr-peter-scardino-s-prostate-book-the-complete-guide-to.pdf
    • http://www.gorillawalker.com/technosex-cyber-age-erotica.pdf
    • http://www.gorillawalker.com/scrounging-the-islands-with-the-legendary-don-the-beachcomber-host.pdf
    • http://www.gorillawalker.com/ginecolog-a-y-obstetricia-gynecology-and-obstetrics-manual-de-consulta.pdf
    • http://www.gorill
    • 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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