Malicious PDF — malware analysis report

Static analysis result for SHA-256 1789a34d69996114…

MALICIOUS

PDF

44.1 KB Created: 2019-04-03 18:29:46 +03:00 Authoring application: LaTeX with hyperref package (via XeTeX 0.99992)
MD5: 9620b2b5f113aa8de9be2fa4491ff826 SHA-1: 760564b62369e9ec39a5de20b4473b3fb76fb2ee SHA-256: 1789a34d69996114f2f2be7eb15db8a3da50d1683d9a2fd01d2cd41560b60ffd
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The sample was flagged by an ML classifier as malicious and contains a large number of embedded URLs pointing to PDF files on the domain 'gorillawalker.com'. This behavior is consistent with a link farm or SEO manipulation tactic, potentially used to distribute malware or phish for information. No scripts were extracted, but the PDF structure itself facilitates the redirection to external content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9171

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/chronometer-makers-of-the-world.pdf
    • http://www.gorillawalker.com/nature-walking-the-concord-library.pdf
    • http://www.gorillawalker.com/i-m-telling-a-novel.pdf
    • http://www.gorillawalker.com/andrology-laboratory-manual.pdf
    • http://www.gorillawalker.com/bears-at-the-beach.pdf
    • http://www.gorillawalker.com/ichthyologica-the-aquarium-journal-may-1966-vol-xxxvii-number-5.pdf
    • http://www.gorillawalker.com/vince-mcmahon-the-unauthorized-biography-of-the-wwe-chairman-kindle.pdf
    • http://www.gorillawalker.com/alternative-zits-a-zits-treasury.pdf
    • http://www.gorillawalker.com/infection-control-and-management-of-hazardous-materials-for-the-dental.pdf
    • http://www.gorillawalker.com/hobby-hydroponics-second-edition.pdf
    • http://www.gorillawalker.com/zambezi-valley-insurgency-early-rhodesian-bush-war-operations-africa-war.pdf
    • http://www.gorillawalker.com/poisoned-pins-claire-malloy-mysteries-no-8.pdf
    • http://www.gorillawalker.com/learn-excel-2000-and-cd-rom-and-users-guide-package.pdf
    • http://www.gorillawalker.com/a-socio-cultural-perspective-on-patient-safety.pdf
    • http://www.gorillawalker.com/bishop-area-rock-climbing-eastern-sierra-climbing-guides-vol-3.pdf
    • http://www.gorillawalker.com/wordpress-mastery-exactly-how-to-become-a-wordpress-expert-create.pdf
    • http://www.gorillawalker.com/brats-billionaires-1-flying-unprotected-volume-1.pdf
    • http://www.gorillawalker.com/the-quiet-gut-cookbook-135-easy-low-fodmap-recipes-to.pdf
    • http://www.gorillawalker.com/color-atlas-of-canine-and-feline-ophthalmology-kindle-edition.pdf
    • http://www.gorillawalker.com/playing-blackjack-as-a-business-playing-blackjack-as-a-busines.pdf
    • http://www.gorillawalker.com/heroes-are-my-weakness.pdf
    • http://www.gorillawalker.com/oxford-children-s-encyclopedia-7-volume-set.pdf
    • http://www.gorillawalker.com/the-piper-s-book-of-wisdom-kindle-edition.pdf
    • http://www.gorillawalker.com/gita-govinda-love-songs-of-radha-and-krishna-clay-sanskrit.pdf
    • http://www.gorillawalker.com/world-of-vocabulary-yellow-level-se-1996c-globe-world-of.pdf
    • http://www.gorillawalker.com/identity-reconciliation-and-transitional-justice-overcoming-intractability-in-divided-societies.pdf
    • http://www.gorillawalker.com/historical-dictionary-of-the-international-food-agencies-fao-wfp-wfc.pdf
    • http://www.gorillawalker.com/saving-your-marriage-before-it-starts-workbook-for-women-seven.pdf
    • http://www.gorillawalker.com/ski-doo-racing-sleds-1960-2003-photo-archive.pdf
    • http://www.gorillawalker.com/the-gospel-project-god-centered-worldview-student-edition-member-book.pdf
    • http://www.gorillawalker.com/southwest-lite-full-flavored-healthy-cooking.pdf
    • http://www.gorillawalker.com/loved-by-a-warrior-the-warrior-king.pdf
    • http://www.gorillawalker.com/to-build-a-canal-sault-ste-marie-1853-1854-and.pdf
    • http://www.gorillawalker.com/chasing-after-bigfoot-my-search-for-north-america-s-most.pdf
    • http://www.gorillawalker.com/classic-movie-instrumental-solos-flute-book-cd-alfred-s-instrumental.pdf
    • http://www.gorillawalker.com/the-wall-growing-up-behind-the-iron-curtain-caldecott-honor.pdf
    • http://www.gorillawalker.com/the-sketchnote-handbook-video-the-illustrated-guide-to-visual-note.pdf
    • http://www.gorillawalker.com/waveguide-components-for-antenna-feed-systems-theory-and-cad-artech.pdf
    • http://www.gorillawalker.com/loving-helen-a-hearthfire-romance-volume-2.pdf
    • http://www.gorillawalker.com/search-for-the-buried-bomber-dark-prospects.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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