Malicious PDF — malware analysis report

Static analysis result for SHA-256 7426a4b8b1760fea…

MALICIOUS

PDF

45.4 KB Created: 2018-12-03 17:05:27 +03:00 Authoring application: PScript5.dll Version 5.2.2 (via Acrobat Distiller 5.0.5 (Windows))
MD5: d86ed27bf0528fca864e68e465508135 SHA-1: 5f2f628318fd9afac89a79e0646376069cdf1811 SHA-256: 7426a4b8b1760fead52795e53d6825c8d31b2a8e3f297f64ee5f6a01125e2438
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded URLs pointing to external PDF files, a technique often used for SEO manipulation or to host malicious content. The ML classifier also flagged this PDF as malicious. While no scripts were extracted, the sheer volume of links suggests a malicious intent to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8439

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/encyclopaedia-of-medical-physics.pdf
    • http://www.gorillawalker.com/diseases-of-fishes-book-6-fungal-diseases-of-fishes.pdf
    • http://www.gorillawalker.com/biscuit-cookie-and-cracker-manufacturing-manuals-complete-set-of-6.pdf
    • http://www.gorillawalker.com/microbiology-essentials-essentials-study-guides.pdf
    • http://www.gorillawalker.com/ralph-walker-architect-of-the-century.pdf
    • http://www.gorillawalker.com/anointed-to-heal-the-wounded-hearts-revealing-jesus-as-healer.pdf
    • http://www.gorillawalker.com/what-is-healing-awaken-your-intuitive-power-for-health-and.pdf
    • http://www.gorillawalker.com/the-floating-brush-learning-japanese-shodo-from-a-kendo-master.pdf
    • http://www.gorillawalker.com/nelson-mandela-young-reading-series-three.pdf
    • http://www.gorillawalker.com/harem-ring-books-1-5-bundle-kindle-edition.pdf
    • http://www.gorillawalker.com/chinese-natural-cures-traditional-methods-for-remedies-and-prevention.pdf
    • http://www.gorillawalker.com/vietnam-today-a-guide-to-a-nation-at-a-crossroads.pdf
    • http://www.gorillawalker.com/chemie-fur-ingenieure-german-edition.pdf
    • http://www.gorillawalker.com/charley-harper-birducopia-1-000-piece-jigsaw-puzzle.pdf
    • http://www.gorillawalker.com/crows-encounters-with-the-wise-guys-of-the-avian-world.pdf
    • http://www.gorillawalker.com/a-survey-of-knot-theory.pdf
    • http://www.gorillawalker.com/the-journey-of-becoming-a-mother-among-women-in-northern.pdf
    • http://www.gorillawalker.com/dracula-the-devil-s-nosferatu-volume-2-of-the-glass.pdf
    • http://www.gorillawalker.com/secrets-in-my-imagination.pdf
    • http://www.gorillawalker.com/shrouds-of-the-night-masks-of-the-milky-way-and.pdf
    • http://www.gorillawalker.com/a-mighty-fortress-safehold-book-4-kindle-edition.pdf
    • http://www.gorillawalker.com/william-golding-s-lord-of-the-flies-bloom-s-modern.pdf
    • http://www.gorillawalker.com/deadliest-woman-in-the-west.pdf
    • http://www.gorillawalker.com/time-to-pray-series-prayers-from-the-bible.pdf
    • http://www.gorillawalker.com/le-lean-manufacturing-les-secrets-de-la-r-ussite-de.pdf
    • http://www.gorillawalker.com/the-book-of-schmaltz-love-song-to-a-forgotten-fat.pdf
    • http://www.gorillawalker.com/a-survival-guide-to-the-stress-of-organizational-change-paperback.pdf
    • http://www.gorillawalker.com/planning-urban-places-self-organising-places-with-people-in-mind.pdf
    • http://www.gorillawalker.com/anti-inflammatory-diet-easy-7-day-meal-plan-and-recipes.pdf
    • http://www.gorillawalker.com/student-solutions-manual-for-silberberg-chemistry-the-molecular-nature-of.pdf
    • http://www.gorillawalker.com/fda-proposes-regulating-dietary-supplements-safety-at-issue-food-and.pdf
    • http://www.gorillawalker.com/learn-to-program-with-java-learn-to-program-with-professor.pdf
    • http://www.gorillawalker.com/reactive-power-control-in-electric-systems.pdf
    • http://www.gorillawalker.com/the-fabulous-high-fiber-diet.pdf
    • http://www.gorillawalker.com/darkness-descends-the-silver-legacy-book-1.pdf
    • http://www.gorillawalker.com/oposita-y-aprueba-spanish-edition.pdf
    • http://www.gorillawalker.com/spurgeon-on-leadership-key-insights-for-christian-leaders-from-the.pdf
    • http://www.gorillawalker.com/merry-hairy-hamster-story.pdf
    • http://www.gorillawalker.com/immortalis-amor-darkest-secrets.pdf
    • http://www.gorillawalker.com/us-army-technical-manual-tm-5-4310-352-24p-organizational.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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