Malicious PDF — malware analysis report

Static analysis result for SHA-256 dff944499f9f0ad0…

MALICIOUS

PDF

43.8 KB Created: 2019-04-07 18:03:29 +03:00 Authoring application: Acrobat PDFMaker 5.0 for Word (via Acrobat Distiller 5.0.5 (Windows))
MD5: 49c541d63095a331783a9b125b0c6e01 SHA-1: 416720ab94e71b0ed4591b60cf04e02e18a4ab9c SHA-256: dff944499f9f0ad0d74ab86b8c8dd521ac7cb85bb0475ab8c8cf48b9b45060fe
60 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a large number of embedded URLs pointing to external PDF documents on the domain www.gorillawalker.com. This is indicative of a link farm or SEO manipulation tactic. While no scripts were extracted, the sheer volume of links suggests an attempt to drive traffic or distribute potentially malicious content through these external resources. The attack pattern is inferred from the heuristic firing 'PDF_SEO_LINK_FARM'.

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/build-your-personal-operating-system.pdf
    • http://www.gorillawalker.com/god-s-art.pdf
    • http://www.gorillawalker.com/edible-wild-plants-a-folding-pocket-guide-to-familiar-north.pdf
    • http://www.gorillawalker.com/why-the-north-won-the-vietnam-war.pdf
    • http://www.gorillawalker.com/backstory-1-interviews-with-screenwriters-of-hollywood-s-golden-age.pdf
    • http://www.gorillawalker.com/welcome-to-maple-leaf-gardens-photographs-and-memories-from-canada.pdf
    • http://www.gorillawalker.com/motivational-fitness-goals-calendar-2014-2015-school-year-edition.pdf
    • http://www.gorillawalker.com/the-myth-of-egypt-and-its-hieroglyphs-in-european-tradition.pdf
    • http://www.gorillawalker.com/colour-atlas-of-clinical-gonioscopy.pdf
    • http://www.gorillawalker.com/oxford-illustrated-social-studies-dictionary.pdf
    • http://www.gorillawalker.com/coconut-oil-learn-how-to-use-coconut-oil-the-side.pdf
    • http://www.gorillawalker.com/three-early-modern-utopias.pdf
    • http://www.gorillawalker.com/gladio-nato-s-dagger-at-the-heart-of-europe-the.pdf
    • http://www.gorillawalker.com/never-tales-1-hot-bisexual-erotica.pdf
    • http://www.gorillawalker.com/the-sonnets-classic-poetry-series.pdf
    • http://www.gorillawalker.com/the-picture-of-dorian-gray-alma-evergreens.pdf
    • http://www.gorillawalker.com/getting-started-in-rental-income.pdf
    • http://www.gorillawalker.com/claimed-assassin-s-revenge-book-4.pdf
    • http://www.gorillawalker.com/jesus-is-victor-tozer-classics-series.pdf
    • http://www.gorillawalker.com/mechanical-electrical-costbook.pdf
    • http://www.gorillawalker.com/avian-mortality-at-large-wind-energy-facilities-in-california-identification.pdf
    • http://www.gorillawalker.com/cambridge-english-empower-intermediate-presentation-plus-dvd-rom.pdf
    • http://www.gorillawalker.com/recent-themes-in-american-religious-history-historians-in-conversation.pdf
    • http://www.gorillawalker.com/travels-and-adventures-of-an-orchid-hunter-an-account-of.pdf
    • http://www.gorillawalker.com/the-creation-of-the-zulu-kingdom-1815-1828-war-shaka.pdf
    • http://www.gorillawalker.com/a-story-of-grace-beyond-the-iron-curtain.pdf
    • http://www.gorillawalker.com/rocking-the-boat-how-to-effect-change-without-making-trouble.pdf
    • http://www.gorillawalker.com/make-your-own-tattoos-mini-maestro.pdf
    • http://www.gorillawalker.com/the-zombie-resistance-society-one-last-dalliance-before-death.pdf
    • http://www.gorillawalker.com/ratcatcher-john-purkiss-thriller-book-1-kindle-edition.pdf
    • http://www.gorillawalker.com/organic-reactions-vol-44.pdf
    • http://www.gorillawalker.com/bone-wires.pdf
    • http://www.gorillawalker.com/shakespeare-s-dilemmas-american-university-studies-series-iv-english-language.pdf
    • http://www.gorillawalker.com/iran-and-the-rise-of-its-neoconservatives-the-politics-of.pdf
    • http://www.gorillawalker.com/45-card-games-with-illustration.pdf
    • http://www.gorillawalker.com/faith-in-times-like-these.pdf
    • http://www.gorillawalker.com/transforming-the-traditional-the-work-of-cohen-hacker-architects.pdf
    • http://www.gorillawalker.com/atlas-de-acupuntura-spanish-edition.pdf
    • http://www.gorillawalker.com/vegan-breakfast-recipes-start-your-days-with-a-hearty-and.pdf
    • http://www.gorillawalker.com/who-wrote-the-dead-sea-scrolls-the-search-for-the.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/