Malicious PDF — malware analysis report

Static analysis result for SHA-256 aba1a64b26d07c21…

MALICIOUS

PDF

47.1 KB Created: 2018-12-15 20:07:38 +03:00 Authoring application: Acrobat PDFMaker 8.1 for Word (via Acrobat Distiller 8.2.6 (Windows))
MD5: be672e6c4451e09a49efc2ae3aefd86d SHA-1: 08ef7e9dce490d44a79da59f7635b0e6160c1804 SHA-256: aba1a64b26d07c21562691012bfc20c59939ad52750ccee2fb115961084445f5
90 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, as indicated by the PDF_SEO_LINK_FARM heuristic. The ML classifier also flagged the document as malicious. The embedded links point to various documents hosted on www.gorillawalker.com, suggesting a potential link farm or SEO manipulation tactic. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8868

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-history-of-the-religious-movement-of-the-eighteenth-century.pdf
    • http://www.gorillawalker.com/d-b-country-report-myanmar-download-pdf-digital.pdf
    • http://www.gorillawalker.com/theological-investigations-vol-xiii-theology-anthropology-christology.pdf
    • http://www.gorillawalker.com/study-guide-to-accompany-maternity-nursing-5th-ed.pdf
    • http://www.gorillawalker.com/miss-manners-guide-to-excruciatingly-correct-behavior-the-ultimate-handbook.pdf
    • http://www.gorillawalker.com/the-modernist-short-story-a-study-in-theory-and-practice.pdf
    • http://www.gorillawalker.com/introduction-to-bengali-part-1-a-basic-course-in-spoken.pdf
    • http://www.gorillawalker.com/the-vineyard-at-the-end-of-the-world-maverick-winemakers.pdf
    • http://www.gorillawalker.com/holt-american-anthem-california-standard-review-workbook-grades-9-12.pdf
    • http://www.gorillawalker.com/grundlagen-der-elektrischen-energietechnik-versorgung-betriebsmittel-netzbetrieb-berspannungen-und-isolation.pdf
    • http://www.gorillawalker.com/the-curious-death-of-peter-artedi-a-mystery-in-the.pdf
    • http://www.gorillawalker.com/roses-will-bloom-again-heartquest.pdf
    • http://www.gorillawalker.com/the-fall-of-the-house-of-usher-abridged-digital.pdf
    • http://www.gorillawalker.com/reader-s-digest-condensed-books-the-client-the-stolen-car.pdf
    • http://www.gorillawalker.com/bartholomews-revised-half-inch-maps-sheet-22-mid-wales.pdf
    • http://www.gorillawalker.com/the-practical-sql-handbook-using-structured-query-language-3rd-edition.pdf
    • http://www.gorillawalker.com/learn-how-to-paint-and-draw-9-plus-learn-how.pdf
    • http://www.gorillawalker.com/the-spanish-kitchen.pdf
    • http://www.gorillawalker.com/ideals-mothers-day-1984-ideals-mother-s-day.pdf
    • http://www.gorillawalker.com/the-privileged-eye-essays-on-photography.pdf
    • http://www.gorillawalker.com/simpsons-comics-19.pdf
    • http://www.gorillawalker.com/textbook-and-color-atlas-of-salivary-gland-pathology-diagnosis-and.pdf
    • http://www.gorillawalker.com/humorous-irish-tales-for-children.pdf
    • http://www.gorillawalker.com/journal-your-life-s-journey-micro-crystals-29-lined-journal.pdf
    • http://www.gorillawalker.com/embedded-systems-architecture-a-comprehensive-guide-for-engineers-and-programmers.pdf
    • http://www.gorillawalker.com/step-by-step-geometry-homework-booklet-intermediate-homework-booklets.pdf
    • http://www.gorillawalker.com/climbing-california-s-mountains-climbing-mountains-series.pdf
    • http://www.gorillawalker.com/new-good-food-rev-essential-ingredients-for-cooking-and-eating.pdf
    • http://www.gorillawalker.com/w-rterbuch-recht-deutsch-englisch-englisch-deutsch.pdf
    • http://www.gorillawalker.com/black-ops-unabridged-audible-audio-edition.pdf
    • http://www.gorillawalker.com/architectural-graphic-standards-book-only.pdf
    • http://www.gorillawalker.com/los-chistes-favoritos-de-los-ninos-4-spanish-edition.pdf
    • http://www.gorillawalker.com/builders-of-empire-freemasons-and-british-imperialism-1717-1927.pdf
    • http://www.gorillawalker.com/waveguide-handbook-ieee-electromagnetic-waves-series.pdf
    • http://www.gorillawalker.com/hairspray-easy-piano-selections.pdf
    • http://www.gorillawalker.com/cowboys-and-cookouts-a-taste-of-the-old-west.pdf
    • http://www.gorillawalker.com/close-range-photogrammetry-technique-a-validation-study-on-craniofacial-soft.pdf
    • http://www.gorillawalker.com/retro-mama-scrap-happy-sewing-18-easy-sewing-projects-for.pdf
    • http://www.gorillawalker.com/freakonomics-revised-and-expanded-edition-a-rogue-economist-explores-the.pdf
    • http://www.gorillawalker.com/business-insights-deliver-business-value-with-it-how-to-build.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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