Malicious PDF — malware analysis report

Static analysis result for SHA-256 745cc31d3c0e8f7b…

MALICIOUS

PDF

33.7 KB Created: 2020-01-10 17:21:56 +03:00 Authoring application: Acrobat Elements 10.0.0 (Windows)
MD5: e67059d9f66faeb300979458765f5caa SHA-1: 11b38eed6450eacf282f968880f4bae5cb6d5c2f SHA-256: 745cc31d3c0e8f7ba3f7e59d88c1a0b8281040837b4fa38076571663d4558b7c
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 domain 'gorillawalker.com'. While the document body is heavily obfuscated and unreadable, the heuristic strongly suggests the intent is to create a link farm, potentially for SEO manipulation or to distribute other malicious content. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8313

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/used-car-buyer-s-guide-haynes-repair-manuals.pdf
    • http://www.gorillawalker.com/auferstehung-die-legende-von-arc-s-hill-3-german-edition.pdf
    • http://www.gorillawalker.com/the-krusty-book-simpsons-library-of-wisdom.pdf
    • http://www.gorillawalker.com/patterns-of-the-hypnotic-techniques-of-milton-h-erickson-m.pdf
    • http://www.gorillawalker.com/darkmouth-1-the-legends-begin.pdf
    • http://www.gorillawalker.com/the-pope-in-winter-the-dark-face-of-john-paul.pdf
    • http://www.gorillawalker.com/semiconductor-lasers-2nd-edition.pdf
    • http://www.gorillawalker.com/l-europe-par-l-conomie-des-projets-initiaux-aux-d.pdf
    • http://www.gorillawalker.com/wholesome-kitchen-delicious-recipes-with-beans-lentils-grains-and-other.pdf
    • http://www.gorillawalker.com/las-alcantarillas-del-poder-spanish-edition.pdf
    • http://www.gorillawalker.com/getting-together-building-relationships-as-we-negotiate-bargain-price-audio.pdf
    • http://www.gorillawalker.com/new-york-city-2015-square-12x12-st-silver-foil-multilingual.pdf
    • http://www.gorillawalker.com/the-careerist-over-100-ways-to-get-ahead-at-work.pdf
    • http://www.gorillawalker.com/nutricion-y-salud-para-la-familia-calendario-en-espanol-365.pdf
    • http://www.gorillawalker.com/pesticide-synthesis-handbook.pdf
    • http://www.gorillawalker.com/powerxpress-the-empty-tomb-cd.pdf
    • http://www.gorillawalker.com/ultramar-sensations-d-am-rique-antilles-v-n-zuela-primary.pdf
    • http://www.gorillawalker.com/rozen-maiden-vol-1.pdf
    • http://www.gorillawalker.com/disrupt-divided-worlds-trilogy-book-three.pdf
    • http://www.gorillawalker.com/optical-fiber-communications-systems-theory-and-practice-with-matlab-and.pdf
    • http://www.gorillawalker.com/gw-1098-the-complete-book-of-emigrants-in-bondage-1614.pdf
    • http://www.gorillawalker.com/how-to-create-a-sing-out-music-lyrics-choreography-sound.pdf
    • http://www.gorillawalker.com/toyota-camry-2007-thru-2011-includes-avalon-and-lexus-es.pdf
    • http://www.gorillawalker.com/the-sense-of-hearing-second-edition.pdf
    • http://www.gorillawalker.com/hydrodynamics-cambridge-mathematical-library.pdf
    • http://www.gorillawalker.com/list-of-people-in-genealogy-of-bitetto-italy-kindle-edition.pdf
    • http://www.gorillawalker.com/freedom-of-the-screen-legal-challenges-to-state-film-censorship.pdf
    • http://www.gorillawalker.com/poems-from-spain-british-and-irish-international-brigaders-on-the.pdf
    • http://www.gorillawalker.com/at-the-tomb-of-the-inflatable-pig-travels-through-paraguay.pdf
    • http://www.gorillawalker.com/picking-berries-complete-kit-math-in-a-cultural-context-lessons.pdf
    • http://www.gorillawalker.com/training-ivy-how-the-west-was-done-1-siren-publishing.pdf
    • http://www.gorillawalker.com/all-the-books-of-the-bible-nt-edition-epistle-to.pdf
    • http://www.gorillawalker.com/apparel-manufacturing-sewn-product-analysis-4th-edition.pdf
    • http://www.gorillawalker.com/listening-and-reading-for-english-language-learners-collaborative-teaching-for.pdf
    • http://www.gorillawalker.com/the-arctic-sky-inuit-astronomy-star-lore-and-legend.pdf
    • http://www.gorillawalker.com/geometry-homework-practice-workbook.pdf
    • http://www.gorillawalker.com/fullmetal-alchemist-12.pdf
    • http://www.gorillawalker.com/liberty-bar-inspector-maigret.pdf
    • http://www.gorillawalker.com/breadwinners-working-women-and-economic-independence-1865-1920-women-in.pdf
    • http://www.gorillawalker.com/bilingual-europe-latin-and-vernacular-cultures-examples-of-bilingualism-and.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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