Malicious PDF — malware analysis report

Static analysis result for SHA-256 60235d5050c52fe8…

MALICIOUS

PDF

41.7 KB Created: 2019-04-03 18:19:00 +03:00 Authoring application: Writer (via LibreOffice 4.2)
MD5: bff1769186d2665d01b649d5eac97e69 SHA-1: c50a8959afb0a835eafcad3da34c7b5aa58c256a SHA-256: 60235d5050c52fe83bd367aac20ca59f74bb06aa7cd295e3006d5f79afb102b0
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a heuristic firing for a large number of external links, suggesting a link farm or SEO manipulation tactic. The embedded URLs point to various PDF documents hosted on 'gorillawalker.com'. While no scripts were extracted, the sheer volume of links and the ML classifier's high confidence indicate malicious intent, likely to direct users to potentially harmful content or for malicious SEO.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8872

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/eurythmy-rhythm-dance-rudolf-steiner-s-ideas-in-practice-series.pdf
    • http://www.gorillawalker.com/tom-brown-s-field-guide-wilderness-survival.pdf
    • http://www.gorillawalker.com/manners-for-men-cosimo-classics-etiquette.pdf
    • http://www.gorillawalker.com/el-poder-de-la-cabal-the-power-of-kabbalah-spanish.pdf
    • http://www.gorillawalker.com/hosea-god-s-persistent-love-lifeguide-bible-studies.pdf
    • http://www.gorillawalker.com/nonobject.pdf
    • http://www.gorillawalker.com/journal-your-life-s-journey-urban-city-graphic-lined-journal.pdf
    • http://www.gorillawalker.com/the-geometry-of-the-octonions.pdf
    • http://www.gorillawalker.com/einflussfaktoren-ge-nderten-mobilit-tsverhaltens-auf-arbeits-und-freizeitwegen-empirische.pdf
    • http://www.gorillawalker.com/strange-world-of-david-lynch-transcendental-irony-from-eraserhead-to.pdf
    • http://www.gorillawalker.com/neurotic-styles-the-austen-riggs-center-monograph-series-no-5.pdf
    • http://www.gorillawalker.com/101-ethical-dilemmas.pdf
    • http://www.gorillawalker.com/evolution-the-story-of-life-on-earth.pdf
    • http://www.gorillawalker.com/clear-corneal-cataract-surgery-and-topical-anesthesia.pdf
    • http://www.gorillawalker.com/magnetic-sensors-and-magnetometers-artech-house-remote-sensing-library.pdf
    • http://www.gorillawalker.com/textiles-from-hallstatt-textilien-aus-hallstatt-weaving-culture-in-bronze.pdf
    • http://www.gorillawalker.com/constantine-the-great-and-the-christian-revolution.pdf
    • http://www.gorillawalker.com/soy-especial-i-m-special-because-spanish-edition.pdf
    • http://www.gorillawalker.com/andromaque-tragedie-par-j-racine-french-edition.pdf
    • http://www.gorillawalker.com/antiquities-of-the-parish-church-jamaica-including-newtown-and-flushing.pdf
    • http://www.gorillawalker.com/jock-sturges-notes-hardcover.pdf
    • http://www.gorillawalker.com/explore-it-labs.pdf
    • http://www.gorillawalker.com/slaughterhouse-five-maxnotes-literature-guides.pdf
    • http://www.gorillawalker.com/the-pparahan-oracle.pdf
    • http://www.gorillawalker.com/bon-jovi-easy-guitar-anthology-20-greatest-hits.pdf
    • http://www.gorillawalker.com/the-black-man-s-burden-the-white-man-in-africa.pdf
    • http://www.gorillawalker.com/the-champion-father.pdf
    • http://www.gorillawalker.com/flygirl.pdf
    • http://www.gorillawalker.com/alien-tango-alien-novels-book-two.pdf
    • http://www.gorillawalker.com/the-wisconsin-state-constitution-a-reference-guide-reference-guides-to.pdf
    • http://www.gorillawalker.com/birthright-book-2-of-the-legacy-series-an-urban-fantasy.pdf
    • http://www.gorillawalker.com/crop-yield-physiology-and-processes.pdf
    • http://www.gorillawalker.com/all-quiet-on-the-western-front-the-story-of-a.pdf
    • http://www.gorillawalker.com/u-boat-977.pdf
    • http://www.gorillawalker.com/configure-a-secure-home-computer-network-wireless-and-wifi-kindle.pdf
    • http://www.gorillawalker.com/der-zweite-affe-chronik-eines-millionengrabs-german-edition.pdf
    • http://www.gorillawalker.com/one-minute-manager-builds-high-performing-teams-the-rev-one.pdf
    • http://www.gorillawalker.com/peptic-ulcer-a-new-approach-to-its-causation-prevention-and.pdf
    • http://www.gorillawalker.com/beziehung-nr-18-german-edition.pdf
    • http://www.gorillawalker.com/betrayal-haunting-emma.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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