Malicious PDF — malware analysis report

Static analysis result for SHA-256 6bf8ad12555eadfa…

MALICIOUS

PDF

42.6 KB Created: 2019-04-06 10:13:48 +03:00 Authoring application: Acrobat Distiller 5.0 (Windows) (via Adobe PDF Library 9.9)
MD5: 21c52bc37183256d9c7f870caea90b27 SHA-1: 402c682a1808c7b666df0189eb33caa182acc2ac SHA-256: 6bf8ad12555eadfad864416139a81204f9030fe51933884e324e5624c55899f3
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1105 Ingress Tool Transfer

The PDF document contains a large number of embedded URLs pointing to external PDF files on the domain 'gorillawalker.com'. This behavior is indicative of a link farm, often used for SEO manipulation or to distribute potentially malicious content. The ML classifier also flagged this PDF as malicious, supporting the suspicious nature of the embedded links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9027

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/angel-of-storms-book-2-of-millennium-s-rule.pdf
    • http://www.gorillawalker.com/the-yankee-division-in-the-first-world-war-in-the.pdf
    • http://www.gorillawalker.com/4-24-2015-israel-stocks-buy-sell-hold-ratings-buy.pdf
    • http://www.gorillawalker.com/the-new-retirementality-planning-your-life-and-living-your-dreams.pdf
    • http://www.gorillawalker.com/strobe-edge-vol-10.pdf
    • http://www.gorillawalker.com/the-antioxidant-counter-a-pocket-guide-to-the-revolutionary-orac.pdf
    • http://www.gorillawalker.com/im-mighty-japanese-edition.pdf
    • http://www.gorillawalker.com/hunter-s-thompson-s-fear-and-loathing-in-las-vegas.pdf
    • http://www.gorillawalker.com/program-management-a-life-cycle-approach-best-practices-and-advances.pdf
    • http://www.gorillawalker.com/cambios-que-sanan.pdf
    • http://www.gorillawalker.com/black-and-white-digital-photography-photo-workshop-kindle-edition.pdf
    • http://www.gorillawalker.com/walking-taylor-home-a-fatal-disease-a-father-s-love.pdf
    • http://www.gorillawalker.com/love-and-fire-goldedition-german-edition.pdf
    • http://www.gorillawalker.com/following-her-the-unexpected-hero-series.pdf
    • http://www.gorillawalker.com/the-laws-of-robots-crimes-contracts-and-torts-law-governance.pdf
    • http://www.gorillawalker.com/darts-miscellany.pdf
    • http://www.gorillawalker.com/cheese-making-cheddar-swiss-brick-limburger-edam-cottage.pdf
    • http://www.gorillawalker.com/introduction-to-tantra-sastra-8th.pdf
    • http://www.gorillawalker.com/jacques-brel-l-oeuvre-integrale-french-edition.pdf
    • http://www.gorillawalker.com/group-exercises-for-adolescents-a-manual-for-therapists-second-edition.pdf
    • http://www.gorillawalker.com/annual-report-of-the-massachusetts-bar-association-volume-4.pdf
    • http://www.gorillawalker.com/the-training-of-toby-masters-of-the-mansion-book-2.pdf
    • http://www.gorillawalker.com/polarized-law-with-an-english-translation-of-the-hague-conventionson.pdf
    • http://www.gorillawalker.com/house-of-the-rising-son-living-after-midnight.pdf
    • http://www.gorillawalker.com/de-la-a-la-z-por-mexico-from-a-to.pdf
    • http://www.gorillawalker.com/the-pope-and-mussolini-the-secret-history-of-pius-xi.pdf
    • http://www.gorillawalker.com/a-banquet-of-consequences-a-lynley-novel-inspector-lynley-novel.pdf
    • http://www.gorillawalker.com/the-politically-incorrect-ethnic-joke-book-with-something-to-offend.pdf
    • http://www.gorillawalker.com/behind-the-fence-life-as-a-pow-in-japan-1942.pdf
    • http://www.gorillawalker.com/the-dream-is-alive-the-flight-of-discovery-aboard-the.pdf
    • http://www.gorillawalker.com/mel-bay-presents-renaissance-vihuela-guitar-in-sixteenth-century-frank.pdf
    • http://www.gorillawalker.com/new-york-university-and-the-city-an-illustrated-history.pdf
    • http://www.gorillawalker.com/dog-agility-equipment-construction-instructions-you-can-build-better-training.pdf
    • http://www.gorillawalker.com/sql-server-2005-practical-troubleshooting-the-database-engine.pdf
    • http://www.gorillawalker.com/ricci-maternity-pediatric-nursing-2e-text-sg-package.pdf
    • http://www.gorillawalker.com/memes-rofl-at-these-memes.pdf
    • http://www.gorillawalker.com/the-miracle-of-petroleum-jelly-how-petroleum-jelly-can-enhance.pdf
    • http://www.gorillawalker.com/wage-policy-income-distribution-and-democratic-theory-routledge-frontiers-of.pdf
    • http://www.gorillawalker.com/lust-and-greed-kindle-edition.pdf
    • http://www.gorillawalker.com/flesch-carl-scale-system-cello-arranged-by-wolfgang-boettcher-carl.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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