Malicious PDF — malware analysis report

Static analysis result for SHA-256 6911b9b491e69f8a…

MALICIOUS

PDF

46.4 KB Created: 2019-02-14 08:12:50 +03:00 Authoring application: Acrobat PDFMaker 5.0 for Word (via Acrobat Distiller 5.0 (Windows))
MD5: e00bb5b09e56c498a22d5b45b64d8f65 SHA-1: ec3b486658bb431c1a272bb4059719a4c9399cb1 SHA-256: 6911b9b491e69f8ab16302c815e57abc07ffcc4a66cb6232e97763fde3f035dd
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF was flagged by an ML classifier as malicious and contains a large number of embedded external links, indicating a potential link farm or distribution mechanism. While no scripts were extracted, the sheer volume of links suggests an attempt to manipulate search engine results or lead users to malicious content. The primary attack pattern observed is the embedding of numerous external URLs.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8518

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-sounds-of-latinidad-immigrants-making-music-and-creating-culture.pdf
    • http://www.gorillawalker.com/the-2011-2016-outlook-for-non-small-cell-lung-cancer.pdf
    • http://www.gorillawalker.com/cracking-the-gre-2004-edition-graduate-test-prep.pdf
    • http://www.gorillawalker.com/in-the-presence-of-nature-the-celery-farm-natural-area.pdf
    • http://www.gorillawalker.com/hardening-linux.pdf
    • http://www.gorillawalker.com/colored-pencil-artist-s-drawing-bible-an-essential-reference-for.pdf
    • http://www.gorillawalker.com/the-sava-river-the-handbook-of-environmental-chemistry.pdf
    • http://www.gorillawalker.com/piano-works-volume-2-piano-solo.pdf
    • http://www.gorillawalker.com/the-essentials-of-living-aboard-a-boat-revised-updated.pdf
    • http://www.gorillawalker.com/a-practical-guide-to-ecological-modelling-using-r-as-a.pdf
    • http://www.gorillawalker.com/telescope-making-for-beginners.pdf
    • http://www.gorillawalker.com/just-revenge.pdf
    • http://www.gorillawalker.com/saxon-math-7-6-special-populations-workbook-master-adaptations.pdf
    • http://www.gorillawalker.com/arte-huichol-huichol-art-artes-de-mexico-75-bilingual-edition.pdf
    • http://www.gorillawalker.com/the-history-of-the-psychoanalytic-movement-and-other-papers.pdf
    • http://www.gorillawalker.com/the-detection-of-malingered-mental-retardation-a-study-of-simulation.pdf
    • http://www.gorillawalker.com/facing-danger-classic-reprint.pdf
    • http://www.gorillawalker.com/reasonable-malice.pdf
    • http://www.gorillawalker.com/genetics-and-evolution-the-molecules-of-inheritance-new-encyclopedia-of.pdf
    • http://www.gorillawalker.com/design-sketch-version-2-higher-education-the-self-educated-examination.pdf
    • http://www.gorillawalker.com/the-little-seagull-handbook-with-exercises-second-edition.pdf
    • http://www.gorillawalker.com/virtual-ascendance-video-games-and-the-remaking-of-reality.pdf
    • http://www.gorillawalker.com/quicksilver-international-edition-paperback.pdf
    • http://www.gorillawalker.com/mind-cosmology-the-secret-doctrine-of-cosmic-energy-revealed.pdf
    • http://www.gorillawalker.com/laundry-man.pdf
    • http://www.gorillawalker.com/similar-fact-evidence-probative-value-and-prejudice-carswell-s-criminal.pdf
    • http://www.gorillawalker.com/beauty-and-the-brain-the-dream-maker-series-book-2.pdf
    • http://www.gorillawalker.com/java-by-j-f-scheltema-with-twelve-full-page-illustrations.pdf
    • http://www.gorillawalker.com/the-purloined-poe-lacan-derrida-and-psychoanalytic-reading.pdf
    • http://www.gorillawalker.com/dos-programming-success-in-a-day-beginners-guide-to-fast.pdf
    • http://www.gorillawalker.com/build-your-own-home-theater-second-edition.pdf
    • http://www.gorillawalker.com/office-comes-to-os-x-yes-there-s-another-new.pdf
    • http://www.gorillawalker.com/progress-in-psychobiology-and-physiological-psychology-volume-13.pdf
    • http://www.gorillawalker.com/delivering-successful-pmos-how-to-design-and-deliver-the-best.pdf
    • http://www.gorillawalker.com/the-human-body-reader-s-digest-pathfinders.pdf
    • http://www.gorillawalker.com/color-atlas-of-xenopus-laevis-histology.pdf
    • http://www.gorillawalker.com/how-to-draw-these-roses-in-six-easy-steps-kindle.pdf
    • http://www.gorillawalker.com/the-unofficial-countryside.pdf
    • http://www.gorillawalker.com/u-s-versus-them-how-a-half-century-of-conservatism.pdf
    • http://www.gorillawalker.com/wartime-consigliere.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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