Malicious PDF — malware analysis report

Static analysis result for SHA-256 b682cac98f29a435…

MALICIOUS

PDF

48.8 KB Created: 2019-04-03 18:22:49 +03:00 Authoring application: QuarkXPressª: LaserWriter 8 8.5.1 (via Acrobat Distiller 3.01 for Power Macintosh) First seen: 2020-12-25
MD5: 22976677f4f1281046133d719029c0b9 SHA-1: ba0fc1e263670cc5cc651801df410591e7812d84 SHA-256: b682cac98f29a4354fd421a0ef25c8088e08ec17d392235ba70276f9212ae351
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links 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. While no scripts were extracted, the presence of numerous external links suggests a potential for further malicious activity or a deceptive content delivery mechanism.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8509

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-big-body-book-the-wonderful-world-of-simon-abbott.pdf In PDF document text
    • http://www.gorillawalker.com/embedded-security-in-cars-securing-current-and-future-automotive-it.pdfIn PDF document text
    • http://www.gorillawalker.com/wastewater-treatment-plant-design.pdfIn PDF document text
    • http://www.gorillawalker.com/sushi-recipes-learn-how-to-make-sushi-rice-sushi-rolls.pdfIn PDF document text
    • http://www.gorillawalker.com/52-cups-of-coffee-inspiring-and-insightful-stories-for-navigating.pdfIn PDF document text
    • http://www.gorillawalker.com/method-and-meaning-essays-on-new-testament-interpretation-in-honor.pdfIn PDF document text
    • http://www.gorillawalker.com/the-ultimate-ice-cream-book-over-500-ice-creams-sorbets.pdfIn PDF document text
    • http://www.gorillawalker.com/my-mueller-spiral-ultra-vegetable-spiralizer-cookbook-101-recipes-to.pdfIn PDF document text
    • http://www.gorillawalker.com/weight-loss-success-low-carb-high-fat-diet-cookbook-how.pdfIn PDF document text
    • http://www.gorillawalker.com/hillman-on-commercial-loan-documentation-practising-law-institute-s-commercial.pdfIn PDF document text
    • http://www.gorillawalker.com/rocky-balboa-the-best-of-rocky-songbook.pdfIn PDF document text
    • http://www.gorillawalker.com/die-bierfl.pdfIn PDF document text
    • http://www.gorillawalker.com/musicality-in-theatre-music-as-model-method-and-metaphor-in.pdfIn PDF document text
    • http://www.gorillawalker.com/the-poetics-of-ancient-and-classical-arabic-literature-orientology-culture.pdfIn PDF document text
    • http://www.gorillawalker.com/amor-y-cohetes-love-rockets.pdfIn PDF document text
    • http://www.gorillawalker.com/bariatric-surgery-primer-for-the-internist-an-issue-of-medical.pdfIn PDF document text
    • http://www.gorillawalker.com/child-treatment-and-the-therapy-of-play.pdfIn PDF document text
    • http://www.gorillawalker.com/breakfast-in-bed.pdfIn PDF document text
    • http://www.gorillawalker.com/classical-destinations-an-armchair-guide-to-classical-music.pdfIn PDF document text
    • http://www.gorillawalker.com/jacaranda-a-novella-of-the-clockwork-century.pdfIn PDF document text
    • http://www.gorillawalker.com/lipids-lipophilic-components-and-essential-oils-from-plant-sources.pdfIn PDF document text
    • http://www.gorillawalker.com/economics-of-rural-distribution-of-electric-power-university-of-missouri.pdfIn PDF document text
    • http://www.gorillawalker.com/the-hebrew-prophets-visionaries-of-the-ancient-world-classic-bible.pdfIn PDF document text
    • http://www.gorillawalker.com/science-faith-and-society-a-searching-examination-of-the-meaning.pdfIn PDF document text
    • http://www.gorillawalker.com/mayhem.pdfIn PDF document text
    • http://www.gorillawalker.com/mcdougal-littell-middle-school-american-history-spanish-reading-study-guide.pdfIn PDF document text
    • http://www.gorillawalker.com/remington-education-physical-pharmacy.pdfIn PDF document text
    • http://www.gorillawalker.com/flood-risk-the-holistic-perspective-from-integrated-to-interactive-planning.pdfIn PDF document text
    • http://www.gorillawalker.com/social-media-and-participatory-democracy-public-notice-and-the-world.pdfIn PDF document text
    • http://www.gorillawalker.com/de-la-idea-al-producto-from-idea-to-product-spanish.pdfIn PDF document text
    • http://www.gorillawalker.com/letters-to-my-best-friend.pdfIn PDF document text
    • http://www.gorillawalker.com/adaptive-rhetoric-evolution-culture-and-the-art-of-persuasion-routledge.pdfIn PDF document text
    • http://www.gorillawalker.com/i-monster-serial-killers-in-their-own-chilling-words-i.pdfIn PDF document text
    • http://www.gorillawalker.com/dim-remembered-stories-a-critical-study-of-r-h-barlow.pdfIn PDF document text
    • http://www.gorillawalker.com/six-sigma-in-the-area-of-finance-a-valuable-model.pdfIn PDF document text
    • http://www.gorillawalker.com/the-official-handbook-of-the-marvel-universe-book-of-the.pdfIn PDF document text
    • http://www.gorillawalker.com/las-llaves-de-la-ciudad-the-keys-of-the-city.pdfIn PDF document text
    • http://www.gorillawalker.com/the-couples-psychotherapy-treatment-planner.pdfIn PDF document text
    • http://www.gorillawalker.com/the-imperfect-marriage-help-for-those-who-think-it-s.pdfIn PDF document text
    • http://www.gorillawalker.com/kentish-hops-kentish-country-dances-mainly-from-the-eighteenth-century.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://www.aiim.org/pdfa/ns/extension/In PDF document text
    • http://www.aiim.org/pdfa/ns/schema#In PDF document text
    • http://www.aiim.org/pdfa/ns/property#In PDF document text
    • http://www.aiim.org/pdfa/ns/id/In PDF document text

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