Malicious PDF — malware analysis report

Static analysis result for SHA-256 8610ff748cf75995…

MALICIOUS

PDF

43.7 KB Created: 2018-11-26 20:27:19 +03:00 Authoring application: - (via Acrobat Distiller 2.0 for Macintosh)
MD5: 2fb0092d5fc6a8c0d11dfecbf8afdc56 SHA-1: 846f8541090259e6f4534e7f4a57f3508d020d4e SHA-256: 8610ff748cf75995c0fe24b89c7be3fe9b8805896a910bcac4e57803dad89068
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment

The PDF file contains a large number of embedded links to external PDF documents, as indicated by the PDF_SEO_LINK_FARM heuristic. The ML classifier also flagged this PDF as malicious with high confidence. The document body contains obfuscated text and embedded URLs, suggesting an attempt to disguise the malicious intent. No scripts were extracted from this sample.

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/energy-efficiency-solutions-for-historic-buildings.pdf
    • http://www.gorillawalker.com/a-modern-introduction-to-particle-physics-third-edition.pdf
    • http://www.gorillawalker.com/british-politics-and-foreign-policy-in-the-age-of-appeasement.pdf
    • http://www.gorillawalker.com/the-metaphysics-of-death-stanford-series-in-philosophy.pdf
    • http://www.gorillawalker.com/the-jungles-of-randomness-a-mathematical-safari.pdf
    • http://www.gorillawalker.com/the-journals-of-the-lewis-and-clark-expedition-volume-10.pdf
    • http://www.gorillawalker.com/hollywood-celebrates-the-holidays-1920-1970.pdf
    • http://www.gorillawalker.com/campus-cuties.pdf
    • http://www.gorillawalker.com/a-priest-on-trial.pdf
    • http://www.gorillawalker.com/a-coloring-book-of-amazons.pdf
    • http://www.gorillawalker.com/sleepy-hollow-the-art-of-the-series.pdf
    • http://www.gorillawalker.com/what-to-expect-when-you-re-dead.pdf
    • http://www.gorillawalker.com/yogavataranam-the-translation-of-yoga-a-new-approach-to-sanskrit.pdf
    • http://www.gorillawalker.com/spectacular-blackness-the-cultural-politics-of-the-black-power-movement.pdf
    • http://www.gorillawalker.com/writing-ghana-imagining-africa-rochester-studies-in-african-history-and.pdf
    • http://www.gorillawalker.com/leica-a-history-illustrating-every-model-and-accessory.pdf
    • http://www.gorillawalker.com/stedman-s-medical-terminology-steps-to-success-in-medical-language.pdf
    • http://www.gorillawalker.com/cellular-and-molecular-physiology-of-cell-volume-regulation.pdf
    • http://www.gorillawalker.com/the-human-brain-surface-three-dimensional-sectional-anatomy-and-mri.pdf
    • http://www.gorillawalker.com/poker-unchecked.pdf
    • http://www.gorillawalker.com/fatal-revenant-the-last-chronicles-of-thomas-covenant.pdf
    • http://www.gorillawalker.com/janjaweed-devils-on-horseback.pdf
    • http://www.gorillawalker.com/this-our-exile-a-spiritual-journey-with-the-refugees-of.pdf
    • http://www.gorillawalker.com/the-schreiber-theory-a-radical-rewrite-of-american-film-history.pdf
    • http://www.gorillawalker.com/laclau-a-critical-reader.pdf
    • http://www.gorillawalker.com/mi-primer-borrador-de-homeosiniatria-y-homotoxicologia-spanish-edition.pdf
    • http://www.gorillawalker.com/jesus-the-son-kindle-edition.pdf
    • http://www.gorillawalker.com/near-far.pdf
    • http://www.gorillawalker.com/judging-hunters-and-hunter-seat-equitation-a-comprehensive-guide-for.pdf
    • http://www.gorillawalker.com/the-absolute-best-fondue-recipes-cookbook-kindle-edition.pdf
    • http://www.gorillawalker.com/clinical-voice-disorders.pdf
    • http://www.gorillawalker.com/the-restoration-of-land-the-ecology-reclamation-of-derelict-and.pdf
    • http://www.gorillawalker.com/the-education-of-a-poker-player-1st.pdf
    • http://www.gorillawalker.com/the-power-of-forgetting-six-essential-skills-to-clear-out.pdf
    • http://www.gorillawalker.com/hurricane-katrina-true-books-disasters.pdf
    • http://www.gorillawalker.com/sexuality-citizenship-and-multiple-belongings-transnational-national-and-intersectional-perspectives.pdf
    • http://www.gorillawalker.com/chasing-tiger.pdf
    • http://www.gorillawalker.com/monsieur-beaucaire.pdf
    • http://www.gorillawalker.com/world-authors-1975-1980.pdf
    • http://www.gorillawalker.com/lincoln.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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