Malicious PDF — malware analysis report

Static analysis result for SHA-256 63fb0fd8121f2f08…

MALICIOUS

PDF

42.4 KB Created: 2019-03-17 06:54:50 +03:00 Authoring application: Adobe InDesign CS5 (7.0) (via Adobe PDF Library 9.9)
MD5: fd892490dc4b99fc8f86ae50f85bc848 SHA-1: 95b19b081e83076c72165e1e259a32875d1e57ff SHA-256: 63fb0fd8121f2f081ebbe2a4aa568dcfc3dca0d25e99e56da2608ecc19b96896
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic. These links point to various PDF files on the 'gorillawalker.com' domain. The ML classifier also flagged this PDF as malicious. The primary attack pattern appears to be the distribution of a link farm, potentially for SEO manipulation or to serve as a distribution point for other malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9181

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/dictionnaire-historique-et-critique-de-pierre-bayle-tome-9-l.pdf
    • http://www.gorillawalker.com/choices-in-pregnancy-and-childbirth-a-guide-to-options-for.pdf
    • http://www.gorillawalker.com/the-many-faces-of-science-an-introduction-to-scientists-values.pdf
    • http://www.gorillawalker.com/elefantes-zoobooks-spanish-edition.pdf
    • http://www.gorillawalker.com/staglieno-the-art-of-the-marble-carver.pdf
    • http://www.gorillawalker.com/commonwealth-caribbean-property-law-commonwealth-caribbean-law.pdf
    • http://www.gorillawalker.com/freshman-tales-of-9th-grade-obsessions-revelations-and-other-nonsense.pdf
    • http://www.gorillawalker.com/geriatrics-at-your-fingertips-2014.pdf
    • http://www.gorillawalker.com/daughters-of-gaia-women-in-the-ancient-mediterranean-world-praeger.pdf
    • http://www.gorillawalker.com/painting-and-sculpture-in-europe-1880-1940-3rd-edition-pelican.pdf
    • http://www.gorillawalker.com/introduction-to-human-services-policy-and-practice-7th-edition.pdf
    • http://www.gorillawalker.com/mary-magdalene-beckons-join-the-river-of-love-the-magdalene.pdf
    • http://www.gorillawalker.com/the-amateur-astronomer-s-introduction-to-the-celestial-sphere.pdf
    • http://www.gorillawalker.com/2014-art-of-the-bistro-by-jennifer-garant-wall-calendar.pdf
    • http://www.gorillawalker.com/m-de-mexico-m-for-mexico-spanish-edition.pdf
    • http://www.gorillawalker.com/1001-ideas-for-english-papers-term-papers-projects-reports-and.pdf
    • http://www.gorillawalker.com/i-m-a-magical-girl.pdf
    • http://www.gorillawalker.com/best-of-shining-star-bible-puzzles.pdf
    • http://www.gorillawalker.com/canine-sports-medicine-and-surgery-1e.pdf
    • http://www.gorillawalker.com/dog-days-volume-one-volume-1.pdf
    • http://www.gorillawalker.com/pacemaker-class-count-monte-cristo-se95-pacemaker-classics.pdf
    • http://www.gorillawalker.com/church-and-ministry-the-role-of-church-pastor-and-people.pdf
    • http://www.gorillawalker.com/sunil-gupta-pictures-from-here.pdf
    • http://www.gorillawalker.com/three-seconds-ewert-grens.pdf
    • http://www.gorillawalker.com/software-and-internet-law-casebook.pdf
    • http://www.gorillawalker.com/ks2-english-writing-buster-handwriting.pdf
    • http://www.gorillawalker.com/urban-forestry-1983-85-254-citations-quick-bibliography-series.pdf
    • http://www.gorillawalker.com/recent-publications-on-the-issues-of-euthanasia-a-selected-bibliography.pdf
    • http://www.gorillawalker.com/historic-photos-of-knoxville.pdf
    • http://www.gorillawalker.com/principles-and-practice-of-pain-medicine-3-e.pdf
    • http://www.gorillawalker.com/dialectical-research-methods-in-the-classical-marxist-tradition-critical-qualitative.pdf
    • http://www.gorillawalker.com/on-the-christian-meaning-of-human-suffering.pdf
    • http://www.gorillawalker.com/deadly-secret-a-the-strange-disappearance-of-kathie-durst.pdf
    • http://www.gorillawalker.com/sports-related-traumatic-orofacial-injuries-prevention-treatment-and-rehabilitation.pdf
    • http://www.gorillawalker.com/watch-me-walk-away-walking-series.pdf
    • http://www.gorillawalker.com/gerardo-vera-spanish-edition.pdf
    • http://www.gorillawalker.com/nation-it-s-time-to-pray.pdf
    • http://www.gorillawalker.com/a-rulebook-for-decision-making-hackett-student-handbooks.pdf
    • http://www.gorillawalker.com/christmas-entertainments-containing-fancy-drills-acrostics-motion-songs-tableaux-short.pdf
    • http://www.gorillawalker.com/abschied-nehmen-praktischer-rat-und-hilfe-in-den-tagen-der.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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