Malicious PDF — malware analysis report

Static analysis result for SHA-256 0085173c0032795b…

MALICIOUS

PDF

41.5 KB Created: 2018-12-15 20:01:13 +03:00 Authoring application: Adobe InDesign CC (Macintosh) (via Adobe PDF Library 11.0)
MD5: 3f41da7ecff27c40b784b3cd16d2ff79 SHA-1: e7b61babd15109ba5d460c55c574c2281ec6c67c SHA-256: 0085173c0032795b587fbadcfe562fa7a02defb9c65314f1266a01be9914d23c
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Phishing: Spearphishing Attachment T1204.002 Malicious File: Malicious PDF

The PDF contains a large number of embedded URLs pointing to external PDF files, a technique often used for SEO manipulation or to distribute further malicious content. The ML classifier also flagged this PDF as malicious. No scripts were extracted from this sample, and the document body was heavily obfuscated, preventing a deeper analysis of its specific intent beyond link distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9027

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/living-blood-cells-and-their-ultrastructure.pdf
    • http://www.gorillawalker.com/irish-ballads.pdf
    • http://www.gorillawalker.com/national-medical-health-the-rural-medical-professional-textbook-nutrition-and.pdf
    • http://www.gorillawalker.com/socialization-games-for-persons-with-disabilities-structured-group-activities-for.pdf
    • http://www.gorillawalker.com/the-guns-of-arrest.pdf
    • http://www.gorillawalker.com/mirror-roaming-chinese-edition.pdf
    • http://www.gorillawalker.com/b2b-exchanges-the-killer-application-in-the-busines-to-business.pdf
    • http://www.gorillawalker.com/terrorism-versus-democracy-the-liberal-state-response-political-violence.pdf
    • http://www.gorillawalker.com/lo-que-me-hubiera-gustado-saber-antes-de-casarme-spanish.pdf
    • http://www.gorillawalker.com/high-speed-computing.pdf
    • http://www.gorillawalker.com/english-spanish-translation-through-a-cross-cultural-interpretation-approach.pdf
    • http://www.gorillawalker.com/company-manners-an-insider-tells-how-to-succeed-in-the.pdf
    • http://www.gorillawalker.com/bessie-coleman-first-black-woman-pilot-african-american-biographies-enslow.pdf
    • http://www.gorillawalker.com/mild-traumatic-brain-injury-a-survivor-s-handbook.pdf
    • http://www.gorillawalker.com/dead-ringers-series-13-14-seven-episodes-of-the-bbc.pdf
    • http://www.gorillawalker.com/time-out-milan-time-out-guides.pdf
    • http://www.gorillawalker.com/more-than-a-method-trends-and-traditions-in-contemporary-film.pdf
    • http://www.gorillawalker.com/the-flying-boy-book-ii-the-journey-continues-flying-boy.pdf
    • http://www.gorillawalker.com/the-house-the-history-of-the-house-of-representatives.pdf
    • http://www.gorillawalker.com/structural-styles-in-petroleum-exploration.pdf
    • http://www.gorillawalker.com/an-introduction-to-property-valuation.pdf
    • http://www.gorillawalker.com/joseph-conrad-master-mariner-the-novelist-s-life-at-sea.pdf
    • http://www.gorillawalker.com/anatomy-of-a-beast-obsession-and-myth-on-the-trail.pdf
    • http://www.gorillawalker.com/dotzauer-j-friedrich-12-duets-op-63-two-cellos-edited.pdf
    • http://www.gorillawalker.com/the-divine-liturgy-a-simple-guide-for-the-common-person.pdf
    • http://www.gorillawalker.com/almost-everyone-s-guide-to-science.pdf
    • http://www.gorillawalker.com/health-promotion-for-older-adults-and-older-persons-with-developmental.pdf
    • http://www.gorillawalker.com/children-and-their-development-global-edition.pdf
    • http://www.gorillawalker.com/analytical-repertory-of-the-symptoms-of-the-mind.pdf
    • http://www.gorillawalker.com/mes-petites-recettes-magiques-aux-herbes-aromatiques.pdf
    • http://www.gorillawalker.com/romantic-desire-in-post-modern-art-and-philosophy-s-u.pdf
    • http://www.gorillawalker.com/karajan-notes-on-a-career.pdf
    • http://www.gorillawalker.com/waves-of-wahines-a-history-of-women-s-surfing-kindle.pdf
    • http://www.gorillawalker.com/the-joy-luck-club-critical-insights.pdf
    • http://www.gorillawalker.com/breaking-free-my-life-wtih-dissociative-identity-disorder.pdf
    • http://www.gorillawalker.com/the-physiology-of-the-joints-volume-1-upper-limb-6e.pdf
    • http://www.gorillawalker.com/the-fifth-circle-kindle-edition.pdf
    • http://www.gorillawalker.com/roasted-peanuts.pdf
    • http://www.gorillawalker.com/the-new-baby.pdf
    • http://www.gorillawalker.com/freedom-in-a-slave-society-stories-from-the-antebellum-south.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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