Malicious PDF — malware analysis report

Static analysis result for SHA-256 4de2b90400290ed0…

MALICIOUS

PDF

43.2 KB Created: 2019-03-19 10:57:11 +03:00 Authoring application: PScript5.dll Version 5.2.2 (via Mac OS X 10.8.4 Quartz PDFContext)
MD5: 0f6e1c2fedd40fa271e4b1420896f5cc SHA-1: fa23c09565f665779eec90451857df21f73bea7a SHA-256: 4de2b90400290ed0af0cc64fa800221c0b5614e3174659b06f386c6f59b115d7
90 Risk Score

Malware Insights

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

The PDF was flagged by a machine learning classifier and contains a large number of external links, many of which point to other PDF files. This suggests a link farm or SEO manipulation tactic. The embedded URLs are likely used to distribute further malicious content or to redirect users to phishing sites. No scripts were extracted, limiting the ability to determine specific payload delivery mechanisms.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8452

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/la-br-jula-del-cuidador-ayuda-para-familiares-y-cuidadores.pdf
    • http://www.gorillawalker.com/minecraft-minecraft-stories-the-final-battle-connor-kills-ender-dragon.pdf
    • http://www.gorillawalker.com/prentice-hall-nursing-diagnosis-handbook-9th-edition-9th-ninth-edition.pdf
    • http://www.gorillawalker.com/winnie-the-pooh-s-1-2-3.pdf
    • http://www.gorillawalker.com/book-of-mysterious-events.pdf
    • http://www.gorillawalker.com/technology-in-action-introductory-9th-edition.pdf
    • http://www.gorillawalker.com/the-best-of-czech-cooking-hippocrene-international-cookbook-series-kindle.pdf
    • http://www.gorillawalker.com/thrill-seeker.pdf
    • http://www.gorillawalker.com/the-dragon-who-dared-henry-the-brave-hubert-the-happy.pdf
    • http://www.gorillawalker.com/lord-byron-s-last-journey-to-greece-new-ebook-edition.pdf
    • http://www.gorillawalker.com/the-deep-end-volume-8-giving-all-to-you.pdf
    • http://www.gorillawalker.com/women-marked-for-history-new-mexico-roadside-markers-honor-women.pdf
    • http://www.gorillawalker.com/the-rain-forest-what-lives-there.pdf
    • http://www.gorillawalker.com/public-relations-writing-and-media-techniques-plus-mysearchlab-with-etext.pdf
    • http://www.gorillawalker.com/economics-of-federalism-economic-approaches-to-law-series.pdf
    • http://www.gorillawalker.com/trained-by-three-panthers-caves-of-correction-3-siren-publishing.pdf
    • http://www.gorillawalker.com/by-sidney-m-de-angelis-you-re-entitled-a-divorce.pdf
    • http://www.gorillawalker.com/the-bear-history-of-a-fallen-king.pdf
    • http://www.gorillawalker.com/comparative-economics-2nd-edition.pdf
    • http://www.gorillawalker.com/twilight-of-the-celtic-gods-an-exploration-of-britain-s.pdf
    • http://www.gorillawalker.com/the-basics-of-paralegal-studies-4th-edition.pdf
    • http://www.gorillawalker.com/doctor-who-the-legend-doctor-who-bbc-hardcover.pdf
    • http://www.gorillawalker.com/language-development-an-introduction-8th-edition-allyn-bacon-communication-sciences.pdf
    • http://www.gorillawalker.com/erotica-my-bestie-s-dad-box-set-23-taboo-romance.pdf
    • http://www.gorillawalker.com/hurtigruta-norwegian-edition-hardcover.pdf
    • http://www.gorillawalker.com/rsmeans-residential-detailed-costs-contractor-s-pricing-guide-2010.pdf
    • http://www.gorillawalker.com/manufacturing-strategy-how-to-formulate-and-implement-a-winning-plan.pdf
    • http://www.gorillawalker.com/morganstern-daniel-fundamentals-of-cello-technique-cello-solo.pdf
    • http://www.gorillawalker.com/sports-laughs.pdf
    • http://www.gorillawalker.com/birds-of-southern-south-america-and-antarctica.pdf
    • http://www.gorillawalker.com/jvp-journal-of-vertebrate-paleontology-volume-29-number-2-12.pdf
    • http://www.gorillawalker.com/the-new-public-health-medicine.pdf
    • http://www.gorillawalker.com/the-music-of-germany-international-guitar-editions.pdf
    • http://www.gorillawalker.com/code-of-federal-regulations-title-29-labor-parts-500-899.pdf
    • http://www.gorillawalker.com/drawing-on-the-right-side-of-the-brain-workbook-the.pdf
    • http://www.gorillawalker.com/theoretical-foundations-of-nonlinear-acoustics-studies-in-soviet-science.pdf
    • http://www.gorillawalker.com/the-evolution-of-the-massachusetts-public-school-system-a-historical.pdf
    • http://www.gorillawalker.com/amore-battaglia-mafia-series-volume-5.pdf
    • http://www.gorillawalker.com/the-going-rate-what-it-really-costs-to-drive-world.pdf
    • http://www.gorillawalker.com/minecraft-redstone-handbook-an-official-mojang-book.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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