Malicious PDF — malware analysis report

Static analysis result for SHA-256 6b973d2d85313d59…

MALICIOUS

PDF

44.3 KB Created: 2019-03-17 06:59:21 +03:00 Authoring application: FrameMaker 8.0 (via Acrobat Distiller 10.0.1 (Windows))
MD5: 1bb790844ea749d85f180ce8bbdd59d8 SHA-1: 64a26d8ee64674957db4c648ac966b201ba460e9 SHA-256: 6b973d2d85313d5937e53130d71cb6c8946decac9fd98cebf5dc4f45c2442e9e
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links pointing to external PDF files on the domain 'gorillawalker.com'. This behavior is indicative of a link farm or SEO manipulation tactic. While no scripts were explicitly extracted, the PDF structure and the sheer volume of external links suggest an attempt to direct users to potentially malicious or misleading content, aligning with a spearphishing attachment initial access vector.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8452

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/anales-de-la-ciudad-del-rosario-de-santa-fe-con.pdf
    • http://www.gorillawalker.com/the-slave-power-the-free-north-and-southern-domination-1780.pdf
    • http://www.gorillawalker.com/tom-petty-easy-guitar-with-notes-tab.pdf
    • http://www.gorillawalker.com/the-firebringer-and-other-great-stories-fifty-five-legends-that.pdf
    • http://www.gorillawalker.com/arisa-7.pdf
    • http://www.gorillawalker.com/of-permanent-value-the-story-of-warren-buffett-abridged-edition.pdf
    • http://www.gorillawalker.com/the-ancient-egyptian-pyramid-texts.pdf
    • http://www.gorillawalker.com/la-nueva-dieta-de-atkins-spanish-edition.pdf
    • http://www.gorillawalker.com/the-little-mermaid-la-sirenita-a-bilingual-book-bilingual-fairy.pdf
    • http://www.gorillawalker.com/colorado-wildlife-falcon-pocket-guides.pdf
    • http://www.gorillawalker.com/noah-146-s-ark-baby-blessings.pdf
    • http://www.gorillawalker.com/system-dynamics-3rd-edition.pdf
    • http://www.gorillawalker.com/sustainable-development-of-tourism-a-compilation-of-good-practices-contains.pdf
    • http://www.gorillawalker.com/when-music-goes-to-school-perspectives-on-learning-and-teaching.pdf
    • http://www.gorillawalker.com/smart-or-lucky-how-technology-leaders-turn-chance-into-success.pdf
    • http://www.gorillawalker.com/protection-of-information-and-the-right-to-privacy-a-new.pdf
    • http://www.gorillawalker.com/moby-dick-bloom-s-reviews.pdf
    • http://www.gorillawalker.com/the-stock-option-income-generator-how-to-make-steady-profits.pdf
    • http://www.gorillawalker.com/fallin-up-my-story.pdf
    • http://www.gorillawalker.com/the-flight-computer-instruction-manual.pdf
    • http://www.gorillawalker.com/the-seven-human-powers-luminous-shadows-of-the-self.pdf
    • http://www.gorillawalker.com/cenozoic-mammals-of-north-america-geochronology-and-biostratigraphy.pdf
    • http://www.gorillawalker.com/karawanken-fuhrer-durch-die-karawanken-und-die-steiner-alpen-german.pdf
    • http://www.gorillawalker.com/the-noisemakers-why-they-keep-losing-your-money-and-how.pdf
    • http://www.gorillawalker.com/seventeen-ultimate-guide-to-style-how-to-find-your-perfect.pdf
    • http://www.gorillawalker.com/lost-over-laos-a-true-story-of-tragedy-mystery-and.pdf
    • http://www.gorillawalker.com/israel-opposing-viewpoints.pdf
    • http://www.gorillawalker.com/martin-guitars-a-technical-reference-revised-and-updated-book-2.pdf
    • http://www.gorillawalker.com/the-boer-war-winston-churchill-early-works-collection-book-1.pdf
    • http://www.gorillawalker.com/the-chaos-curse-the-cleric-quintet-book-v.pdf
    • http://www.gorillawalker.com/lift-every-voice-and-sing-ii-an-african-american-hymnal.pdf
    • http://www.gorillawalker.com/through-the-ever-night-under-the-never-sky-trilogy.pdf
    • http://www.gorillawalker.com/ireland-in-the-age-of-the-tudors-1447-1603-english.pdf
    • http://www.gorillawalker.com/historical-places-in-and-around-jamestown-north-carolina.pdf
    • http://www.gorillawalker.com/sarah-and-the-widow-s-mate.pdf
    • http://www.gorillawalker.com/irish-whiskies-past-and-present.pdf
    • http://www.gorillawalker.com/presidency-of-woodrow-wilson-1st-first-edition.pdf
    • http://www.gorillawalker.com/dunhuang-a-city-on-the-silk-road-meet-travel-guides.pdf
    • http://www.gorillawalker.com/handbook-of-metalloproteins-volume-3.pdf
    • http://www.gorillawalker.com/c-mo-trabajar-con-j-venes-ap-ticos-sobreviviendo-a.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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