Malicious PDF — malware analysis report

Static analysis result for SHA-256 a04b7ba91a02a8f6…

MALICIOUS

PDF

42.7 KB Created: 2019-02-15 09:00:34 +03:00 Authoring application: PDFCreator Version 1.5.1 (via GPL Ghostscript 9.05)
MD5: 9ec48167ebbfb4a0f6585154fec204ce SHA-1: 8955e12d69fa1b4b1998497e7d3f55d107accb85 SHA-256: a04b7ba91a02a8f624b031a33ba6e267bb08381d5c45eea41670ef32ea90d97b
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, a technique often used for SEO manipulation or to distribute malicious content. The ML classifier also flagged this PDF as malicious. While no scripts were extracted, the sheer volume of links suggests a malicious intent to redirect users to potentially harmful content hosted on the 'gorillawalker.com' domain.

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/irish-booksellers-and-english-writers-1740-1800.pdf
    • http://www.gorillawalker.com/avril-lavigne-the-best-damn-thing-piano-vocal-guitar-artist.pdf
    • http://www.gorillawalker.com/alimentazione-senza-glutine-e-latticini.pdf
    • http://www.gorillawalker.com/the-hit-factory-the-stock-aitken-and-waterman-story.pdf
    • http://www.gorillawalker.com/the-remnant-the-jewish-resistance-in-wwii-the-jewish-history.pdf
    • http://www.gorillawalker.com/dental-anatomy-a-self-instructional-program-volume-iii.pdf
    • http://www.gorillawalker.com/basic-concepts-in-modern-dance-a-creative-approach-dance-horizons.pdf
    • http://www.gorillawalker.com/chronicles-of-dhamma-selected-articles-from-the-vipassana-newsletter.pdf
    • http://www.gorillawalker.com/ray-charles-voice-of-soul-great-achievers-lives-of-the.pdf
    • http://www.gorillawalker.com/four-lives-a-celebration-of-raymond-smullyan.pdf
    • http://www.gorillawalker.com/shania-twain-real-life-oop-real-life-reader-biography.pdf
    • http://www.gorillawalker.com/advanced-chinese-flash-cards-book-1-of-4-900-frequent.pdf
    • http://www.gorillawalker.com/dead-in-red-the-jeff-resnick-mysteries.pdf
    • http://www.gorillawalker.com/bicycle-madness.pdf
    • http://www.gorillawalker.com/doctor-who-the-television-companion.pdf
    • http://www.gorillawalker.com/astrology-of-dreams.pdf
    • http://www.gorillawalker.com/armagedon-2012-spanish-edition.pdf
    • http://www.gorillawalker.com/advanced-transport-phenomena.pdf
    • http://www.gorillawalker.com/car-launch-the-human-side-of-managing-change.pdf
    • http://www.gorillawalker.com/divorce-in-new-jersey-a-self-help-guide.pdf
    • http://www.gorillawalker.com/animal-suffering-philosophy-and-culture-palgrave-macmillan-animal-ethics.pdf
    • http://www.gorillawalker.com/merl-reagle-s-100th-anniversary-crossword-book.pdf
    • http://www.gorillawalker.com/the-young-t-e-lawrence-kindle-edition.pdf
    • http://www.gorillawalker.com/eminent-victorians.pdf
    • http://www.gorillawalker.com/red-sonja-omnibus-volume-5.pdf
    • http://www.gorillawalker.com/applied-stochastic-modelling-second-edition-chapman-hall-crc-texts-in.pdf
    • http://www.gorillawalker.com/ethics-and-public-policy-method-and-cases.pdf
    • http://www.gorillawalker.com/the-new-entrepreneurs-how-race-class-and-gender-shape-american.pdf
    • http://www.gorillawalker.com/cattle-valley-sweet-topping.pdf
    • http://www.gorillawalker.com/things-to-remember-a-handbook-for-drivers.pdf
    • http://www.gorillawalker.com/principles-of-animal-behavior.pdf
    • http://www.gorillawalker.com/trisha-and-pooch-extreme-adventures-in-snowboarding-kindle-edition.pdf
    • http://www.gorillawalker.com/jet-planes-of-the-third-reich-the-secret-projects-vol.pdf
    • http://www.gorillawalker.com/the-mao-tse-tung-workers-revolutionary-striptease-emporium-the-london.pdf
    • http://www.gorillawalker.com/college-writing-2e.pdf
    • http://www.gorillawalker.com/5-pythagoras-and-the-golden-ratio-palermo-syracuse-abstracting-of.pdf
    • http://www.gorillawalker.com/the-chaldee-paraphrase-on-the-prophet-isaiah.pdf
    • http://www.gorillawalker.com/the-psychology-of-religious-experience.pdf
    • http://www.gorillawalker.com/reduction-of-dust-and-energy-during-coal-cutting-using-point.pdf
    • http://www.gorillawalker.com/our-man-in-malaya-john-davis-cbe-dso-force-136.pdf
    • http://www.gorillawalker.com/chronicles-of-dhamma-selected-articles-from-the-vipassan
    • 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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