Malicious PDF — malware analysis report

Static analysis result for SHA-256 b71cd3d77422b19d…

MALICIOUS

PDF

43.0 KB Created: 2018-11-26 08:22:24 +03:00 Authoring application: Acrobat Elements 10.0.0 (Windows)
MD5: 53292ba5fbc57e7a3d4ffae3121a70eb SHA-1: 2ddc6a841ec99e4eeb2963b7c35919d6d6f6b58c SHA-256: b71cd3d77422b19d983666abc0c737929851b04ed5ed8ee95c2c7c697c371962
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded external links, as indicated by the PDF_SEO_LINK_FARM heuristic. These links point to various PDF documents on the domain gorillawalker.com. The ML classifier also flagged this PDF as malicious. The document body appears to be corrupted or heavily obfuscated, preventing a more detailed analysis of its specific lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8698

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/manual-de-contabilidad-internacional-international-accounting-manual-econom-a-y.pdf
    • http://www.gorillawalker.com/wales-1994-bed-and-breakfast-accommodation-guides.pdf
    • http://www.gorillawalker.com/grief-and-loss-understanding-the-journey-death-dying-grief-loss.pdf
    • http://www.gorillawalker.com/capriccio-for-solo-clarinet-1946-softcover.pdf
    • http://www.gorillawalker.com/the-professionalization-of-work.pdf
    • http://www.gorillawalker.com/meaning-madness-and-political-subjectivity-a-study-of-schizophrenia-and.pdf
    • http://www.gorillawalker.com/the-skystone-the-camulod-chronicles-book-1.pdf
    • http://www.gorillawalker.com/biology-grades-6-12-the-100-series-153.pdf
    • http://www.gorillawalker.com/iris.pdf
    • http://www.gorillawalker.com/includg-studs-spec-needs-pract-gde-tests.pdf
    • http://www.gorillawalker.com/ms-marvel-vol-3-crushed-ms-marvel.pdf
    • http://www.gorillawalker.com/quick-escapes-boston-2nd-25-weekend-getaways-from-the-hub.pdf
    • http://www.gorillawalker.com/perioperative-competency-verification-tools-and-job-descriptions.pdf
    • http://www.gorillawalker.com/towards-a-methodology-for-the-investigation-of-norms-in-audiovisual.pdf
    • http://www.gorillawalker.com/levison-s-textbook-for-dental-nurses.pdf
    • http://www.gorillawalker.com/fatal-jeopardy-book-seven-of-the-fatal-series.pdf
    • http://www.gorillawalker.com/famiglie-in-mutazione-la-famiglia-adottiva-contributi-per-la-formazione.pdf
    • http://www.gorillawalker.com/famous-irish-trials.pdf
    • http://www.gorillawalker.com/no-clients-no-job-no-problem-how-to-grow-your.pdf
    • http://www.gorillawalker.com/radionuclides-in-the-environment.pdf
    • http://www.gorillawalker.com/benchmarking-of-control-strategies-for-wastewater-treatment-plants-scientific-and.pdf
    • http://www.gorillawalker.com/real-time-cameras.pdf
    • http://www.gorillawalker.com/statistics-with-maple.pdf
    • http://www.gorillawalker.com/how-to-start-a-professional-photography-business.pdf
    • http://www.gorillawalker.com/work-family-interface-in-sub-saharan-africa-challenges-and-responses.pdf
    • http://www.gorillawalker.com/yorkshire-english.pdf
    • http://www.gorillawalker.com/stone-goddess.pdf
    • http://www.gorillawalker.com/the-gift-box.pdf
    • http://www.gorillawalker.com/texas-christmas-brides-here-cooks-the-bride-the-marrying-kind.pdf
    • http://www.gorillawalker.com/financial-analysis-second-edition-a-business-decision-guide.pdf
    • http://www.gorillawalker.com/wave-and-ballistic-theories-of-light-a-critical-review.pdf
    • http://www.gorillawalker.com/parkinson-s-disease-neurobehavioral-aspects.pdf
    • http://www.gorillawalker.com/faith-lessons-my-grandchildren-taught-me-kindle-edition.pdf
    • http://www.gorillawalker.com/derivative-markets-theory-strategy-and-applications.pdf
    • http://www.gorillawalker.com/hike-sequoia-and-kings-canyon-best-day-hikes-in-sequoia.pdf
    • http://www.gorillawalker.com/futures-trading-tips-kindle-edition.pdf
    • http://www.gorillawalker.com/a-dictionary-of-oppression-in-the-workplace.pdf
    • http://www.gorillawalker.com/festejo-de-los-empenos-de-una-casa-juan-de-la.pdf
    • http://www.gorillawalker.com/emma-goldman-a-documentary-history-of-the-american-years-volume.pdf
    • http://www.gorillawalker.com/the-guide-to-cooking-schools-1996-guide-to-cooking-schools.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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