Malicious PDF — malware analysis report

Static analysis result for SHA-256 7abf4777eb9aab97…

MALICIOUS

PDF

30.9 KB Created: 2019-12-14 00:56:03 +03:00 Authoring application: LaTeX with hyperref package (via PDFlib PLOP 2.0.0p6 (SunOS)/Acrobat Distiller 5.0.5 (Windows))
MD5: 8f9b975cb3ec36660cecdc650401f99a SHA-1: 5224df4a3c633f4aca6f0591b5bc5bad396c3742 SHA-256: 7abf4777eb9aab97c702b5cd6627ef74927382b364fb8bbcba7336bce42277bf
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded URLs pointing to other PDF files on the same domain, as indicated by the PDF_SEO_LINK_FARM heuristic. This suggests the document is designed to manipulate search engine rankings or to act as a distribution point for further malicious content. No scripts were extracted, and the document body was heavily obfuscated, limiting further analysis of the immediate intent beyond link distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8447

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/preaching-the-psalms.pdf
    • http://www.gorillawalker.com/fundamentals-of-collection-development-and-management-2-e-kindle-edition.pdf
    • http://www.gorillawalker.com/africa-called-scientists-and-development-in-nigeria.pdf
    • http://www.gorillawalker.com/people-in-a-landscape.pdf
    • http://www.gorillawalker.com/auntie-the-baby.pdf
    • http://www.gorillawalker.com/cute-piglets-living-in-the-country-happy-piglets-calvendo-animals.pdf
    • http://www.gorillawalker.com/altazor-spanish-edition-kindle-edition.pdf
    • http://www.gorillawalker.com/the-potted-gardener-agatha-raisin-mysteries.pdf
    • http://www.gorillawalker.com/james-taylor-complete-vol-2-piano-vocal-chords.pdf
    • http://www.gorillawalker.com/orange-kindle-edition.pdf
    • http://www.gorillawalker.com/the-selected-poems-of-emily-dickinson-modern-library-classics.pdf
    • http://www.gorillawalker.com/favorite-greek-myths-yesterday-s-classics.pdf
    • http://www.gorillawalker.com/violence-in-the-family.pdf
    • http://www.gorillawalker.com/the-3d-printing-bible-everything-you-need-to-know-about.pdf
    • http://www.gorillawalker.com/poes-a-no-completa-1-spanish-edition.pdf
    • http://www.gorillawalker.com/the-flower-gardener-s-bible-a-complete-guide-to-colorful.pdf
    • http://www.gorillawalker.com/practice-makes-perfect-basic-math.pdf
    • http://www.gorillawalker.com/tomorrow-when-the-war-began-the-tomorrow-series-1.pdf
    • http://www.gorillawalker.com/gundam-technical-manual-5-g-gundam.pdf
    • http://www.gorillawalker.com/football-speed-agility-quickness-workouts-kindle-edition.pdf
    • http://www.gorillawalker.com/the-alliance-the-preston-brown-chronicles-book-4-kindle-edition.pdf
    • http://www.gorillawalker.com/your-travel-guide-to-ancient-egypt-passport-to-history.pdf
    • http://www.gorillawalker.com/big-sounds-from-small-peoples-music-industry-in-small-countries.pdf
    • http://www.gorillawalker.com/dallas-train-business-directory-travel-guide-all-lines-kindle-edition.pdf
    • http://www.gorillawalker.com/666-hair-raising-horror-movie-trivia-questions-kindle-edition.pdf
    • http://www.gorillawalker.com/asphalt-concrete-water-barriers-for-embankment-dams.pdf
    • http://www.gorillawalker.com/handbook-of-green-chemistry-and-technology.pdf
    • http://www.gorillawalker.com/lessons-in-belonging-from-a-church-going-commitment-phobe.pdf
    • http://www.gorillawalker.com/aesthetic-and-reconstructive-breast-surgery-solving-complications-and-avoiding-unfavorable.pdf
    • http://www.gorillawalker.com/adoring-jesus-with-the-holy-father.pdf
    • http://www.gorillawalker.com/functional-equations-on-groups.pdf
    • http://www.gorillawalker.com/nixon-s-secrets-unabridged-audible-audio-edition.pdf
    • http://www.gorillawalker.com/polar-scientists-studying-the-antarctic-extreme-science-careers.pdf
    • http://www.gorillawalker.com/fallen-angel-a-finding-nolan-novel-book-3.pdf
    • http://www.gorillawalker.com/adler-for-beginners-writers-and-readers-documentary-comic-book.pdf
    • http://www.gorillawalker.com/growing-out-season-3-growing-in-your-gifts-growing-out.pdf
    • http://www.gorillawalker.com/how-to-start-a-home-based-mobile-app-developer-business.pdf
    • http://www.gorillawalker.com/new-dimensions-in-photo-imaging-a-step-by-step-manual.pdf
    • http://www.gorillawalker.com/national-geographic-vol-161-no-4-april-1982.pdf
    • http://www.gorillawalker.com/teapot-tales-pirates-mermaids-and-monsters-of-the-sea.pdf
    • http://www.gorillawalker.com/the-selected-poe
    • 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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