Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed5a2b6c0cc6f9e1…

MALICIOUS

PDF

43.8 KB Created: 2018-12-15 08:11:09 +03:00 Authoring application: Microsoft Word (via Acrobat PDFWriter 3.0f1r8 for Power Macintosh)
MD5: 2f99755e56f117e9debf5f58585732b5 SHA-1: fe9bd474b051df6f91a3645c0df3837cd83c232e SHA-256: ed5a2b6c0cc6f9e17b4e83134427992ee02fd38d089d93bbecbf33608750ac8c
90 Risk Score

Malware Insights

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

The PDF was flagged by a critical heuristic for containing a large number of external links, specifically pointing to PDFs hosted on gorillawalker.com. The ML classifier also strongly indicated maliciousness. While no scripts were extracted, the sheer volume of links suggests an attempt to manipulate search engine results or redirect users to potentially malicious content. The document body was heavily obfuscated and unreadable.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9016

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/when-she-use-to-love-her-kindle-edition.pdf
    • http://www.gorillawalker.com/subtle-power-of-spiritual-abuse-the-recognizing-and-escaping-spiritual.pdf
    • http://www.gorillawalker.com/la-conquista-divina-de-michoac.pdf
    • http://www.gorillawalker.com/by-david-cho-hackers-toefl-reading-intermediate-ibt-for-korean.pdf
    • http://www.gorillawalker.com/maximum-boost-designing-testing-and-installing-turbocharger-systems-engineering-and.pdf
    • http://www.gorillawalker.com/free-format-rpg-iv-how-to-bring-your-rpg-programs.pdf
    • http://www.gorillawalker.com/compact-transistor-modelling-for-circuit-design-computational-microelectronics.pdf
    • http://www.gorillawalker.com/principles-of-political-economy-and-chapters-on-socialism-oxford-world.pdf
    • http://www.gorillawalker.com/a-church-fully-engaged-yves-congar-s-vision-of-ecclesial.pdf
    • http://www.gorillawalker.com/tales-from-the-troubadour.pdf
    • http://www.gorillawalker.com/startup-ceo-a-field-guide-to-scaling-up-your-business.pdf
    • http://www.gorillawalker.com/strong-blood-last-moon-rising-volume-2.pdf
    • http://www.gorillawalker.com/brunner-and-suddarth-s-textbook-of-medical-surgical-nursing-of.pdf
    • http://www.gorillawalker.com/senor-de-los-ejercitos-spanish-edition.pdf
    • http://www.gorillawalker.com/indeterminacy-of-translation-philosophy-of-quine-volume-3.pdf
    • http://www.gorillawalker.com/shifting-sands-strength-of-the-pack-4-siren-publishing-classic.pdf
    • http://www.gorillawalker.com/chemical-shifts-and-coupling-constants-for-phosphorus-31-part-3.pdf
    • http://www.gorillawalker.com/sex-ain-t-better-than-love.pdf
    • http://www.gorillawalker.com/the-art-of-living-socratic-reflections-from-plato-to-foucault.pdf
    • http://www.gorillawalker.com/globalizing-ideal-beauty-women-advertising-and-the-power-of-marketing.pdf
    • http://www.gorillawalker.com/introduction-to-sociology-test-yourself.pdf
    • http://www.gorillawalker.com/adaptive-agents-and-multi-agent-systems-adaptation-and-multi-agent.pdf
    • http://www.gorillawalker.com/textbook-of-type-2-diabetes.pdf
    • http://www.gorillawalker.com/200-recetas-de-pan-spanish-edition.pdf
    • http://www.gorillawalker.com/panama-country-study-guide-world-country-study-guide.pdf
    • http://www.gorillawalker.com/the-balloon-lady-and-other-people-i-know-emerging-writers.pdf
    • http://www.gorillawalker.com/arctic-international-relations-a-bibliography.pdf
    • http://www.gorillawalker.com/media-debates-great-issues-for-the-digital-age-with-infotrac.pdf
    • http://www.gorillawalker.com/in-early-summer-1993-i-went-to-india-vol-3.pdf
    • http://www.gorillawalker.com/loyal-and-his-band.pdf
    • http://www.gorillawalker.com/blut-german-edition-kindle-edition.pdf
    • http://www.gorillawalker.com/one-direction-offi-annual-2015.pdf
    • http://www.gorillawalker.com/a-study-on-contrasts-for-saxophone-quartet-by-sammy-nestico.pdf
    • http://www.gorillawalker.com/tradition-book-cult-of-ecstasy-mage-the-ascension.pdf
    • http://www.gorillawalker.com/the-writing-of-history-in-ancient-egypt-during-the-first.pdf
    • http://www.gorillawalker.com/regresiones-spanish-edition.pdf
    • http://www.gorillawalker.com/moscow-st-petersburg-berlitz-pocket-guides.pdf
    • http://www.gorillawalker.com/a-maze-ing-western-national-parks-monuments.pdf
    • http://www.gorillawalker.com/maximilian-voloshin-and-the-russian-literary-circle-culture-and-survival.pdf
    • http://www.gorillawalker.com/get-down-sheet-music.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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