Malicious PDF — malware analysis report

Static analysis result for SHA-256 35cd9ce9f75ab315…

MALICIOUS

PDF

47.2 KB Created: 2018-11-30 20:56:36 +03:00 Authoring application: - (via Haru Free PDF Library 2.1.0)
MD5: 14725df50fb72d3dce1401b698729969 SHA-1: 2743e5023fa4e71184fdcf2d9e36047268b4598a SHA-256: 35cd9ce9f75ab315a9de00aaac82e47517bec5bc8325aff7dcce858e75c1fac5
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious File

The PDF contains a large number of embedded URLs pointing to external PDF files, as indicated 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 a malicious intent, possibly for SEO spam or to distribute further malicious content. The primary attack pattern involves leveraging the PDF format to host a link farm.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8527

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/the-happiness-of-kati.pdf
    • http://www.gorillawalker.com/cesa-129-reo-bernaldo-de-quiro-129-s-hispanic-notes.pdf
    • http://www.gorillawalker.com/multisensory-control-of-posture.pdf
    • http://www.gorillawalker.com/mcdougal-littell-world-history-document-based-questions-strategies-and-practice.pdf
    • http://www.gorillawalker.com/educational-research-competencies-for-analysis-and-applications-myeducationlab-with-enhanced.pdf
    • http://www.gorillawalker.com/pittsburgh-steelers-the-complete-illustrated-history.pdf
    • http://www.gorillawalker.com/silver-an-ogmios-team-novel-volume-1.pdf
    • http://www.gorillawalker.com/measurement-uncertainty-fourth-edition-methods-and-applications.pdf
    • http://www.gorillawalker.com/axe.pdf
    • http://www.gorillawalker.com/huevos-parlantes-los-spanish-edition.pdf
    • http://www.gorillawalker.com/war-is-a-force-that-gives-us-meaning.pdf
    • http://www.gorillawalker.com/nursing-care-in-the-genomic-era-a-case-based-approach.pdf
    • http://www.gorillawalker.com/gift-makes-easy-to-create-designs-using-your-favourite-craft.pdf
    • http://www.gorillawalker.com/catherine-of-king-david-catherine-the-great-king-david-reincarnated.pdf
    • http://www.gorillawalker.com/lonely-planet-malawi-mozambique-zambia-malawi-mozambique-and-zambia.pdf
    • http://www.gorillawalker.com/challenging-the-breast-cancer-legacy-a-program-of-emotional-support.pdf
    • http://www.gorillawalker.com/werkstattorientierte-produktionsunterstutzung-konzeption-entwicklung-einfuhrung-und-anwendung-iao-tg-32.pdf
    • http://www.gorillawalker.com/for-those-who-wonder-new-fourth-edition.pdf
    • http://www.gorillawalker.com/central-r-co-of-new-jersey-v-halges-u-s.pdf
    • http://www.gorillawalker.com/how-to-overcome-alcohol-addiction-for-life-the-book-of.pdf
    • http://www.gorillawalker.com/the-elements-of-an-effective-dissertation-and-thesis-a-step.pdf
    • http://www.gorillawalker.com/business-analysis-and-valuation-using-financial-statements-text-only.pdf
    • http://www.gorillawalker.com/first-steps-in-digital-design-use-your-computer-to-create.pdf
    • http://www.gorillawalker.com/private-houses-of-paris-the-hotels-particuliers-revealed.pdf
    • http://www.gorillawalker.com/organizational-and-process-reengineering-approaches-for-health-care-transformation.pdf
    • http://www.gorillawalker.com/the-barrel-cortex-of-rodents-cerebral-cortex.pdf
    • http://www.gorillawalker.com/nials-laws-of-nigeria-companies-and-allied-matters-act.pdf
    • http://www.gorillawalker.com/ilocano-responses-to-american-aggression-1900-1901.pdf
    • http://www.gorillawalker.com/soldier-of-god-macarthur-s-attempt-to-christianize-japan.pdf
    • http://www.gorillawalker.com/instructor-test-prep-2016-book-and-tutorial-software-bundle-study.pdf
    • http://www.gorillawalker.com/ap-calculus-ab-bc-rea-the-best-test-prep-for.pdf
    • http://www.gorillawalker.com/pricing-for-results.pdf
    • http://www.gorillawalker.com/books-to-die-for-the-world-s-greatest-mystery-writers.pdf
    • http://www.gorillawalker.com/listen-and-learn.pdf
    • http://www.gorillawalker.com/we-believe-and-confess-the-augsburg-confession-leader-s-guide.pdf
    • http://www.gorillawalker.com/can-you-survive-an-earthquake-you-choose-survival-kindle-edition.pdf
    • http://www.gorillawalker.com/selling-big-growing-your-business-within-large-companies.pdf
    • http://www.gorillawalker.com/kepler.pdf
    • http://www.gorillawalker.com/the-metaphysics-of-mind.pdf
    • http://www.gorillawalker.com/statement-analysis-an-iss-course-workbook.pdf
    • http://www.gorillawalker.com/measurement-uncertainty-fourth-edition-methods-a
    • 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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