Malicious PDF — malware analysis report

Static analysis result for SHA-256 0b343d4e4e10eaf4…

MALICIOUS

PDF

44.3 KB Created: 2018-11-15 18:31:29 +03:00 Authoring application: - (via Acrobat PDFWriter 3.02 for Windows NT)
MD5: 94dc0d46858a3f3022914540f58e4114 SHA-1: b6449e2bb1f011d5f055326345f8a7cc11b84358 SHA-256: 0b343d4e4e10eaf47bc007af1d8c360249afae997b3a3ee80db9bb8dcf9ca01e
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links to external PDF files, primarily hosted on 'gorillawalker.com'. This behavior is indicative of a link farm or SEO manipulation tactic, which can be used to distribute malicious content or improve search engine rankings for malicious sites. The ML classifier also flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9016

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/come-home-with-us-discovery-flaps.pdf
    • http://www.gorillawalker.com/2015-coding-essentials-for-rt-pulmonary-function.pdf
    • http://www.gorillawalker.com/the-day-we-met-kindle-edition.pdf
    • http://www.gorillawalker.com/festival-methode-de-francais-2-cahier-d-exercices-french-edition.pdf
    • http://www.gorillawalker.com/the-boy-who-cried-sheep-hopscotch-twisty-tales.pdf
    • http://www.gorillawalker.com/daily-sudoku-puzzle-calendar-2015-daily-puzzle-calendar-2015.pdf
    • http://www.gorillawalker.com/freezer-meals-for-every-kitchen-30-simple-and-quick-freezer.pdf
    • http://www.gorillawalker.com/reading-jazz-the-new-method-for-learning-to-read-written.pdf
    • http://www.gorillawalker.com/a-search-for-collection-science-and-art-in-riding.pdf
    • http://www.gorillawalker.com/becoming-the-woman-of-his-dreams-seven-qualities-every-man.pdf
    • http://www.gorillawalker.com/heat-detection-in-cattle-a-beginner-s-guide-to-estrus.pdf
    • http://www.gorillawalker.com/madame-butterfly-and-a-japanese-nightingale-two-orientalist-texts.pdf
    • http://www.gorillawalker.com/ready-to-use-victorian-borders.pdf
    • http://www.gorillawalker.com/point-man-kindle-edition.pdf
    • http://www.gorillawalker.com/missouri-then-and-now-new-and-enlarged-edition.pdf
    • http://www.gorillawalker.com/do-it-now-science-wild-experiments-outdoor-adventures.pdf
    • http://www.gorillawalker.com/property-and-liability-insurance-handbook.pdf
    • http://www.gorillawalker.com/the-falconmaster.pdf
    • http://www.gorillawalker.com/baby-einstein-first-colors-disney-baby-einstein.pdf
    • http://www.gorillawalker.com/preparing-scientific-illustrations-a-guide-to-better-posters-presentations-and.pdf
    • http://www.gorillawalker.com/harmonicas-german-text.pdf
    • http://www.gorillawalker.com/nate-el-grande-hola-big-nate-spanish-edition.pdf
    • http://www.gorillawalker.com/the-ghost-of-the-llano-estacado.pdf
    • http://www.gorillawalker.com/daniel-x-demons-and-druids.pdf
    • http://www.gorillawalker.com/ios-7-programming-pushing-the-limits-develop-advance-applications-for.pdf
    • http://www.gorillawalker.com/medical-care-of-the-nursing-home-resident-what-physicians-need.pdf
    • http://www.gorillawalker.com/learn-chess-tactics.pdf
    • http://www.gorillawalker.com/the-god-of-love-the-path-of-divine-love.pdf
    • http://www.gorillawalker.com/perspectives-on-promotion-and-database-marketing-the-collected-works-by.pdf
    • http://www.gorillawalker.com/useful-feeling-poems.pdf
    • http://www.gorillawalker.com/the-idea-of-conscience-in-renaissance-tragedy.pdf
    • http://www.gorillawalker.com/pass-paramedic-video-and-booklet.pdf
    • http://www.gorillawalker.com/squash-racquets-physical-education-activities-series.pdf
    • http://www.gorillawalker.com/wonder-bread-ecstasy-the-life-and-death-of-joey-stefano.pdf
    • http://www.gorillawalker.com/start-your-own-florist-shop-and-other-floral-businesses-your.pdf
    • http://www.gorillawalker.com/the-bio-politics-of-the-danube-delta-nature-history-policies.pdf
    • http://www.gorillawalker.com/lillian-trasher-the-greatest-wonder-in-egypt-audiobook-christian-heroes.pdf
    • http://www.gorillawalker.com/spring-snow-the-sea-of-fertility.pdf
    • http://www.gorillawalker.com/british-classic-children-s-encyclopedias-not-simple-simple-animals-chinese.pdf
    • http://www.gorillawalker.com/book-of-sheet-music-for-sanders-sonata-in-eb-for.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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