Malicious PDF — malware analysis report

Static analysis result for SHA-256 2df169e405fa898a…

MALICIOUS

PDF

34.8 KB Created: 2020-01-17 19:19:39 +03:00 Authoring application: - (via Acrobat Distiller 7.0.5 (Windows))
MD5: cbb9597c2aca51058f21935966d18aea SHA-1: e744c6ff2896f9466f3fb262ccd94b3e3b7e4f32 SHA-256: 2df169e405fa898a0123548619a27a04a1d989433eebb8eb9a6d9cf5969acfb8
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment

The PDF file was flagged by a machine learning classifier as malicious and contains a large number of external links, indicating a potential SEO manipulation or redirection scheme. The document body is heavily obfuscated and does not provide clear textual clues about its intent. No scripts were extracted from this sample. The primary attack pattern observed is the mass linking to external PDF documents, likely to distribute malicious content or manipulate search engine results.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8263

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-pheasant-cap-master-and-the-end-of-history-linking.pdf
    • http://www.gorillawalker.com/instrument-pilot-oral-exam-guide-kindle-the-comprehensive-guide-to.pdf
    • http://www.gorillawalker.com/vocabulary-cartoon-of-the-day-180-reproducible-cartoons-that-help.pdf
    • http://www.gorillawalker.com/introduccion-a-la-psiquiatria-introduction-to-psychiatry-spanish-edition.pdf
    • http://www.gorillawalker.com/rv-living-travel-the-rving-lifestyle-guide-to-full-time.pdf
    • http://www.gorillawalker.com/the-daily-cookie-365-tempting-treats-for-the-sweetest-year.pdf
    • http://www.gorillawalker.com/velvet-steel-a-practical-guide-for-christian-fathers-and-grandfathers.pdf
    • http://www.gorillawalker.com/second-armored-division-1940-1946.pdf
    • http://www.gorillawalker.com/potsdam-station-a-john-russell-wwii-thriller-a-john-russell.pdf
    • http://www.gorillawalker.com/pray-in-faith-member-book-growing-disciples.pdf
    • http://www.gorillawalker.com/recollections-of-four-years-in-venezuela.pdf
    • http://www.gorillawalker.com/selecting-materials-for-library-collections.pdf
    • http://www.gorillawalker.com/invincible-the-chronicles-of-nick-chronicles-of-nick-book-2.pdf
    • http://www.gorillawalker.com/corporate-softskills.pdf
    • http://www.gorillawalker.com/small-animal-dermatology-self-assessment-picture-tests-in-veterinary-medicine.pdf
    • http://www.gorillawalker.com/meditations-on-quixote-translated-from-the-spanish-by-evelyn-rugg.pdf
    • http://www.gorillawalker.com/travels-with-thai-food.pdf
    • http://www.gorillawalker.com/15-ways-to-fire-up-your-brainpower-kindle-edition.pdf
    • http://www.gorillawalker.com/invisible-enemies-stories-of-infectious-disease.pdf
    • http://www.gorillawalker.com/unmanned-air-systems-uav-design-development-and-deployment.pdf
    • http://www.gorillawalker.com/the-one-percenter-code-how-to-be-an-outlaw-in.pdf
    • http://www.gorillawalker.com/creative-impulse-in-industry-a-proposition-for-educators.pdf
    • http://www.gorillawalker.com/birth-of-an-adhd-child.pdf
    • http://www.gorillawalker.com/journal-bearing-databook.pdf
    • http://www.gorillawalker.com/helen-keller-courage-in-the-dark-step-into-reading-step.pdf
    • http://www.gorillawalker.com/celebrate-the-season-vol-3-new-age-piano-stylings-of.pdf
    • http://www.gorillawalker.com/saving-our-environment-from-washington-how-congress-grabs-power-shirks.pdf
    • http://www.gorillawalker.com/pilates-2-for-beauty-to-clean-dvd-with-midnight-sun.pdf
    • http://www.gorillawalker.com/15-mega-tips-to-triple-your-profit-kindle-edition.pdf
    • http://www.gorillawalker.com/the-procurement-value-proposition-the-rise-of-supply-management.pdf
    • http://www.gorillawalker.com/pocket-atlas-of-dental-radiology.pdf
    • http://www.gorillawalker.com/workbook-for-paramedic-care-principles-practice-volume-3.pdf
    • http://www.gorillawalker.com/macbook-in-easy-steps-covers-os-x-yosemite-10-10.pdf
    • http://www.gorillawalker.com/200-pressure-cooker-recipes-200-pressure-cooker-recipes-quick-easy.pdf
    • http://www.gorillawalker.com/mixed-martial-arts-for-dummies.pdf
    • http://www.gorillawalker.com/please-try-to-remember-the-first-of-octember-beginner-books.pdf
    • http://www.gorillawalker.com/eight-modern-plays-norton-critical-editions.pdf
    • http://www.gorillawalker.com/physics-oxford-world-s-classics.pdf
    • http://www.gorillawalker.com/scholastic-florence-moral-psychology-in-the-quattrocento-brill-s-studies.pdf
    • http://www.gorillawalker.com/complete-puzzle-world-puzzle-island-puzzle-town-puzzle-farm-puzzle.pdf
    • http://www.gorillawalker.com/recollections-of-four-years-
    • 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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