Malicious PDF — malware analysis report

Static analysis result for SHA-256 63e23882e4c36d4a…

MALICIOUS

PDF

42.6 KB Created: 2018-11-30 20:09:11 +03:00 Authoring application: iBooks Author (via Mac OS X 10.9.3 Quartz PDFContext)
MD5: 0652f6cc803ae07ebcf6c7aeef7ec053 SHA-1: e2beb74c69cf4a1b43631058ebf5a763cd08949d SHA-256: 63e23882e4c36d4afbb41d605c0f2cbc5ca7499bd1218aeedc94404062683883
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded URLs pointing to external websites, as indicated by the PDF_SEO_LINK_FARM heuristic. The ML classifier and ClamAV also flagged this file as malicious. The embedded URLs are likely used to manipulate search engine rankings or redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9181

Heuristics 3

  • 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.
  • ClamAV: Pdf.Dropper.Agent-7145892-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-7145892-0
  • 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/promoting-normal-birth-research-reflections-and-guidelines-fresh-heart-books.pdf
    • http://www.gorillawalker.com/lieutenant-roswell-h-lamson-u-s-navy.pdf
    • http://www.gorillawalker.com/the-essential-writings-of-dr-edward-bach-bybach.pdf
    • http://www.gorillawalker.com/lonely-planet-austria-country-guide-travel-guide-by-lonely-planet.pdf
    • http://www.gorillawalker.com/trapped-fear-street-no-51.pdf
    • http://www.gorillawalker.com/jnana-yoga-the-way-of-life.pdf
    • http://www.gorillawalker.com/tom-hanks-star-tracks.pdf
    • http://www.gorillawalker.com/mary-new-century-theology.pdf
    • http://www.gorillawalker.com/comptia-network-rapid-review-exam-n10-005-kindle-edition.pdf
    • http://www.gorillawalker.com/basic-industrial-electricity.pdf
    • http://www.gorillawalker.com/alcohol-saber-para-vivir-learning-to-live-spanish-edition.pdf
    • http://www.gorillawalker.com/midnight-moon-siren-publishing-classic.pdf
    • http://www.gorillawalker.com/anton-reiser-a-psychological-novel-penguin-classics.pdf
    • http://www.gorillawalker.com/who-s-afraid-of-adam-smith-how-the-market-got.pdf
    • http://www.gorillawalker.com/singer-in-the-snow.pdf
    • http://www.gorillawalker.com/islamic-reform-in-south-asia.pdf
    • http://www.gorillawalker.com/lollipop-switch-gender-swap-fiction-bundle.pdf
    • http://www.gorillawalker.com/puttin-on-the-style-youth-subcultures-in-britain.pdf
    • http://www.gorillawalker.com/an-instinct-for-dragons.pdf
    • http://www.gorillawalker.com/medea-focus-classical-library.pdf
    • http://www.gorillawalker.com/the-mysterious-dragon-god-of-yonaguni-archaeological-mystery-thriller-kindle.pdf
    • http://www.gorillawalker.com/geometry-of-subanalytic-and-semialgebraic-sets-progress-in-mathematics.pdf
    • http://www.gorillawalker.com/fair-warning.pdf
    • http://www.gorillawalker.com/the-big-crocodile-a-song-little-celebrations.pdf
    • http://www.gorillawalker.com/lsat-preptest-65-explanations-a-study-guide-for-lsat-65.pdf
    • http://www.gorillawalker.com/everything-you-need-to-know-about-math-homework-a-desk.pdf
    • http://www.gorillawalker.com/chile-1970-73-economic-development-and-its-international-setting-self.pdf
    • http://www.gorillawalker.com/virginia-climate-fever-how-global-warming-will-transform-our-cities.pdf
    • http://www.gorillawalker.com/12-20-5-a-doctor-s-year-in-vietnam-kindle.pdf
    • http://www.gorillawalker.com/internet-resource-guide-for-nurses-and-health-care-professionals-3rd.pdf
    • http://www.gorillawalker.com/pevsner-s-architectural-glossary-pevsner-architectural-guides.pdf
    • http://www.gorillawalker.com/kennedy-s-last-days-the-assassination-that-defined-a-generation.pdf
    • http://www.gorillawalker.com/elements-of-dental-materials.pdf
    • http://www.gorillawalker.com/out-for-the-count-a-counting-adventure.pdf
    • http://www.gorillawalker.com/bibliotheca-rhetorum-praecepta-exempla-complectens-quae-tam-ad-oratoriam-facultatem.pdf
    • http://www.gorillawalker.com/an-introduction-to-queueing-theory-and-matrix-analytic-methods.pdf
    • http://www.gorillawalker.com/a-topological-aperitif.pdf
    • http://www.gorillawalker.com/el-diario-del-chavo-del-ocho-spanish-edition.pdf
    • http://www.gorillawalker.com/by-tad-friend-lost-in-mongolia-travels-in-hollywood-and.pdf
    • http://www.gorillawalker.com/the-rail-road-book-of-england-historical-topographical-and-picturesque.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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