Malicious PDF — malware analysis report

Static analysis result for SHA-256 7003758f65843fc1…

MALICIOUS

PDF

40.7 KB Created: 2018-12-14 20:34:09 +03:00 Authoring application: Word (via Mac OS X 10.4.2 Quartz PDFContext)
MD5: 7224d086c4f90e8d45f7213d99cebbd4 SHA-1: 29dccc96713b323f8293b5ac62f556f97168c70b SHA-256: 7003758f65843fc1bd5a1344ba47ec98bb0d262bf1be7753fca272ff83635728
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. The ML classifier also flagged the document as malicious. While no scripts were extracted, the sheer volume of links suggests an attempt to manipulate search engine rankings or distribute potentially malicious PDF files.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9027

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/foundations-for-algebra-skillbuilders-years-1-and-2.pdf
    • http://www.gorillawalker.com/food-energy-and-the-future-of-society.pdf
    • http://www.gorillawalker.com/middle-eastern-cookbook-paperback.pdf
    • http://www.gorillawalker.com/me-myspace-and-i-parenting-the-net-generation.pdf
    • http://www.gorillawalker.com/radar-systems-analysis-and-design-using-matlab.pdf
    • http://www.gorillawalker.com/wangari-y-los-arboles-de-la-paz-wangari-s-trees.pdf
    • http://www.gorillawalker.com/a-halloween-scare-in-st-louis-a-halloween-scare-prepare.pdf
    • http://www.gorillawalker.com/fractals-in-chemistry-oxford-chemistry-primers-22.pdf
    • http://www.gorillawalker.com/denmark-in-pictures-visual-geography-twenty-first-century.pdf
    • http://www.gorillawalker.com/japanese-haiku-poems.pdf
    • http://www.gorillawalker.com/the-transforming-power-of-faith.pdf
    • http://www.gorillawalker.com/design-of-fluid-thermal-systems-si-edition.pdf
    • http://www.gorillawalker.com/20-quick-and-easy-winter-soup-and-stew-recipes-inspired.pdf
    • http://www.gorillawalker.com/dream-theater-keyboard-experience-featuring-jordan-rudess-keyboard-transcriptions-vocal.pdf
    • http://www.gorillawalker.com/essential-iron-man-vol-3-marvel-essentials-v-3.pdf
    • http://www.gorillawalker.com/agent-13-game-comic-no-8-role-playing-game-comics.pdf
    • http://www.gorillawalker.com/the-analysis-of-knowing-a-decade-of-research.pdf
    • http://www.gorillawalker.com/aquaculture-resurgence-birth-of-blue-revoultion.pdf
    • http://www.gorillawalker.com/medicinal-mushrooms-a-clinical-guide.pdf
    • http://www.gorillawalker.com/end-user-searching-effective-gateway-to-published-information.pdf
    • http://www.gorillawalker.com/crisis-dreaming-using-your-dreams-to-solve-your-problems.pdf
    • http://www.gorillawalker.com/perugia-italian-edition.pdf
    • http://www.gorillawalker.com/the-way-to-rainy-mountain.pdf
    • http://www.gorillawalker.com/aaa-essential-london-aaa-essential-guides-london.pdf
    • http://www.gorillawalker.com/secret-sisterhood-urban-christian.pdf
    • http://www.gorillawalker.com/lateral-work-training-for-a-supple-horse.pdf
    • http://www.gorillawalker.com/community-based-collaboration-bridging-socio-ecological-research-and-practice.pdf
    • http://www.gorillawalker.com/best-of-women-s-short-stories-a-csa-word-classic.pdf
    • http://www.gorillawalker.com/erotic-futagirl-bundle-x-erotic-sci-fi-kindle-edition.pdf
    • http://www.gorillawalker.com/executive-orders-a-jack-ryan-novel-book-8-kindle-edition.pdf
    • http://www.gorillawalker.com/corvette-odyssey-the-true-story-of-one-man-s-path.pdf
    • http://www.gorillawalker.com/emergency-medical-treatment-infants-children-adults-a-handbook-of-what.pdf
    • http://www.gorillawalker.com/superfood-pocketbook-100-top-foods-for-health.pdf
    • http://www.gorillawalker.com/vision-re-vision-adapting-contemporary-american-fiction-by-women-to.pdf
    • http://www.gorillawalker.com/empowering-kids-personal-power-choose-groove-move-with-every-decision.pdf
    • http://www.gorillawalker.com/games-of-deceit-crime-passion.pdf
    • http://www.gorillawalker.com/the-illustrated-brief-history-of-time-updated-and-expanded-edition.pdf
    • http://www.gorillawalker.com/on-the-razzle.pdf
    • http://www.gorillawalker.com/lonely-planet-discover-barcelona-travel-guide-kindle-edition.pdf
    • http://www.gorillawalker.com/reasonable-doubt-kindle-edition.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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