Malicious PDF — malware analysis report

Static analysis result for SHA-256 3e22b87689940fd0…

MALICIOUS

PDF

44.5 KB Created: 2019-04-02 22:43:41 +03:00 Authoring application: - (via pdfTeX-1.0b-pdfcrypt)
MD5: ea01da57f65f7868c76c1405a6752aa2 SHA-1: d7250d215e8b5f7e46476fd1e6f921e5d9f6e931 SHA-256: 3e22b87689940fd07281084731d67bfe467d16bc1af5888135ac87019a043283
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded links pointing 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 with high confidence. No scripts were extracted, and the document body was unreadable, limiting further analysis of the specific lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9171

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