Malicious PDF — malware analysis report

Static analysis result for SHA-256 2273b60161ab775a…

MALICIOUS

PDF

44.4 KB Created: 2018-11-30 20:08:34 +03:00 Authoring application: PrimoPDF http://www.primopdf.com (via Nitro PDF PrimoPDF)
MD5: 8972f6fef508a75158dd7f5295484d04 SHA-1: 769851b84a9c6a8ce8cee13aafce13d833536bcb SHA-256: 2273b60161ab775a50abef4d4cfdf748811af7daf0cbfa3863dee5903d84f425
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 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. No scripts were extracted, and the document body was not parsable, limiting the ability to determine the exact payload or intent beyond link distribution.

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/the-best-of-boards-sound-governance-and-leadership-for-nonprofit.pdf
    • http://www.gorillawalker.com/the-drummer-s-complete-vocabulary-as-taught-by-alan-dawson.pdf
    • http://www.gorillawalker.com/sixty-million-frenchmen-can-t-be-wrong-what-makes-the.pdf
    • http://www.gorillawalker.com/applied-dental-materials-9th-ed.pdf
    • http://www.gorillawalker.com/the-triathletes-a-season-in-the-lives-of-four-women.pdf
    • http://www.gorillawalker.com/laser-dyes-properties-of-organic-compounds-for-dye-lasers.pdf
    • http://www.gorillawalker.com/strengthening-ombudsman-and-human-rights-institutions-in-commonwealth-small-and.pdf
    • http://www.gorillawalker.com/imperfect-chronology-arab-art-from-the-modern-to-the-contemporary.pdf
    • http://www.gorillawalker.com/the-story-of-turkey.pdf
    • http://www.gorillawalker.com/master-an-erotic-novel-of-the-count-of-monte-cristo.pdf
    • http://www.gorillawalker.com/film-and-the-anarchist-imagination.pdf
    • http://www.gorillawalker.com/introduction-to-mysql.pdf
    • http://www.gorillawalker.com/traite-du-gouvernement-civil-ed-rev-et-corr-exactement-sur.pdf
    • http://www.gorillawalker.com/issues-in-higher-education-and-disability-law.pdf
    • http://www.gorillawalker.com/ks3-ict-dictionary.pdf
    • http://www.gorillawalker.com/the-condition-of-the-working-class-in-england-in-1844.pdf
    • http://www.gorillawalker.com/archie-s-double-digest-8-issues.pdf
    • http://www.gorillawalker.com/bosque-tropical-viviente-y-no-viviente-spanish-edition.pdf
    • http://www.gorillawalker.com/superfoods-7-essential-ingredients-for-living-well.pdf
    • http://www.gorillawalker.com/foundations-of-t-ien-t-ai-philosophy-the-flowering-of.pdf
    • http://www.gorillawalker.com/daily-warm-ups-grammar-usage-level-ii-daily-warm-ups.pdf
    • http://www.gorillawalker.com/clump-an-american-splatire.pdf
    • http://www.gorillawalker.com/strategic-credit-management.pdf
    • http://www.gorillawalker.com/easy-guide-to-the-queen-s-gambit-accepted-cadogan-chess.pdf
    • http://www.gorillawalker.com/martin-am-1-1-q-mauler-naval-fighters.pdf
    • http://www.gorillawalker.com/handbook-of-burns-volume-1-2.pdf
    • http://www.gorillawalker.com/the-perfect-mile-three-athletes-one-goal-and-less-than.pdf
    • http://www.gorillawalker.com/grammar-usage-basic-not-boring-6-8-inventive-exercises-to.pdf
    • http://www.gorillawalker.com/dream-of-eagles-06-lancelot.pdf
    • http://www.gorillawalker.com/drafting-contracts-a-guide-to-the-practical-application-of-the.pdf
    • http://www.gorillawalker.com/handbook-of-business-practices-and-growth-in-emerging-markets.pdf
    • http://www.gorillawalker.com/bizet-children-s-suite-juex-d-enfants-piano-duet-kalmus.pdf
    • http://www.gorillawalker.com/lest-we-forget-the-passage-from-africa-to-slavery-and.pdf
    • http://www.gorillawalker.com/poets-and-critics-read-vergil.pdf
    • http://www.gorillawalker.com/philosophy-evolution-and-human-nature.pdf
    • http://www.gorillawalker.com/the-new-codependency-help-and-guidance-for-today-s-generation.pdf
    • http://www.gorillawalker.com/math-in-focus-singapore-math-student-workbook-bundle-a-b.pdf
    • http://www.gorillawalker.com/falling-for-the-sheriff-mills-boon-desire-cupid-s-bow.pdf
    • http://www.gorillawalker.com/from-paper-to-pixels-your-guide-to-the-digital-sheet.pdf
    • http://www.gorillawalker.com/handbook-for-the-common-lectionary.pdf
    • http://www.primopdf.com
    • http://www.gorillawalker.com/imperf
    • 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#
    +1 more URL(s)

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