Malicious PDF — malware analysis report

Static analysis result for SHA-256 ca733d71a5496ddd…

MALICIOUS

PDF

45.2 KB Created: 2019-03-17 10:03:22 +03:00 Authoring application: Adobe InDesign CC (Macintosh) (via Adobe PDF Library 11.0)
MD5: 37baf45e23b6c1bcfd491f6ae84f6eff SHA-1: 2fecf90d889d38d443a59d531f3ed4da31217d75 SHA-256: ca733d71a5496ddd2c1a07d6370bf6cde997c8f1010a284972c5ed59f5dd1710
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious File

The PDF file was flagged by a critical heuristic for containing a mass external PDF link farm. This indicates a likely attempt to manipulate search engine rankings or to serve as a distribution point for further malicious content. The embedded URLs, all pointing to the same domain, support this finding. No scripts were extracted, and the document body was heavily obfuscated, limiting further analysis of the specific lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8812

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/middle-string-quartets-opp-59-74-and-95-dover-miniature.pdf
    • http://www.gorillawalker.com/dreaming-of-elsewhere-observations-on-home-henry-kreisel-lecture.pdf
    • http://www.gorillawalker.com/tomahawks-traditional-to-tactical.pdf
    • http://www.gorillawalker.com/preparing-for-tantra-creating-the-psychological-ground-for-practice.pdf
    • http://www.gorillawalker.com/understanding-the-human-body-an-introduction-to-anatomy-and-physiology.pdf
    • http://www.gorillawalker.com/quality-management-for-government-a-guide-to-federal-state-and.pdf
    • http://www.gorillawalker.com/loss-prevention-in-the-retail-business.pdf
    • http://www.gorillawalker.com/mathematics-with-business-applications-school-to-home-activity-workbook.pdf
    • http://www.gorillawalker.com/harry-potter-hardcover-box-set-books-1-6.pdf
    • http://www.gorillawalker.com/the-art-of-war-translation-essays-and-commentary-by-the.pdf
    • http://www.gorillawalker.com/evidence-based-competency-management-system-second-edition-toolkit-for-validation.pdf
    • http://www.gorillawalker.com/pre-algebra-a-homework-booklet-algebra-series.pdf
    • http://www.gorillawalker.com/down-memory-lane.pdf
    • http://www.gorillawalker.com/building-a-winning-basketball-program-kindle-edition.pdf
    • http://www.gorillawalker.com/a-promise-is-a-promise-classic-munsch.pdf
    • http://www.gorillawalker.com/the-edible-asian-garden-edible-garden.pdf
    • http://www.gorillawalker.com/drywall-contractor-start-and-run-a-money-making-business.pdf
    • http://www.gorillawalker.com/from-dessalines-to-duvalier-race-colour-and-national-independence-in.pdf
    • http://www.gorillawalker.com/managing-the-unthinkable-crisis-preparation-and-response-for-campus-leaders.pdf
    • http://www.gorillawalker.com/cpag-s-income-related-benefits-1993-the-legislation.pdf
    • http://www.gorillawalker.com/brain-tumors-an-encyclopedic-approach-2e.pdf
    • http://www.gorillawalker.com/easy-muffin-tin-meals-delicious-recipes-for-breakfast-lunch-and.pdf
    • http://www.gorillawalker.com/calculus-volume-ii-calculus-of-several-variables-with-applications-to.pdf
    • http://www.gorillawalker.com/ueber-lineare-differentialgleichungen-der-zweiten-ordnung-vorlesung-gehalten-im-sommersemester.pdf
    • http://www.gorillawalker.com/national-lampoon-cheap-thrills.pdf
    • http://www.gorillawalker.com/north-american-meat-processors-lamb-foodservice-poster-revised.pdf
    • http://www.gorillawalker.com/holberg-suite-op-40-composer-s-orchestration-cello-part-qty.pdf
    • http://www.gorillawalker.com/upon-one-note-purcell-fantasia-score.pdf
    • http://www.gorillawalker.com/nelson-s-illustrated-encyclopedia-of-the-bible.pdf
    • http://www.gorillawalker.com/common-core-assessments-and-online-workbooks-grade-8-mathematics-parcc.pdf
    • http://www.gorillawalker.com/oxford-advanced-learner-s-dictionary-english-chinese-dictionary-8th-edition.pdf
    • http://www.gorillawalker.com/baedeker-s-switzerland-and-the-adjacent-portions-of-italy-savoy.pdf
    • http://www.gorillawalker.com/die-walkure-vocal-score.pdf
    • http://www.gorillawalker.com/practical-guide-to-environmental-management-environmental-law-institute.pdf
    • http://www.gorillawalker.com/2016-moms-manager-wall-calendar-17-month.pdf
    • http://www.gorillawalker.com/101-great-choices-washington-dc.pdf
    • http://www.gorillawalker.com/billie-holiday-the-musician-and-the-myth.pdf
    • http://www.gorillawalker.com/sounds-of-celebration-bass-tuba.pdf
    • http://www.gorillawalker.com/drug-calculations-ratio-and-proportion-problems-for-clinical-practice-10e.pdf
    • http://www.gorillawalker.com/990-vocabulary-to-learn-in-order-to-come-out-new.pdf
    • http://www.gorillawal
    • 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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