Malicious PDF — malware analysis report

Static analysis result for SHA-256 ad7b3b8334973831…

MALICIOUS

PDF

30.8 KB Created: 2019-09-15 19:25:23 +03:00 Authoring application: FrameMaker 10.0.2 (via Acrobat Distiller 11.0 (Windows)) First seen: 2021-06-28
MD5: 96eb1bf092683a43dc9f8778f5128294 SHA-1: 4f500d3bf9dccec15f6301f2f2b3b2785f99950b SHA-256: ad7b3b8334973831563ddaf7575a5292811eb71a548088b4c44794d392bd426c
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links to external PDF files, as indicated by the 'PDF_SEO_LINK_FARM' heuristic. The ML classifier also flagged the document as malicious. The primary attack pattern appears to be the distribution of these links, potentially to manipulate search engine results or to serve as a distribution point for further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8405

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/paul-hollywood-s-pies-and-puds-kindle-edition.pdf In PDF document text
    • http://www.gorillawalker.com/hate-list.pdfIn PDF document text
    • http://www.gorillawalker.com/statelessness-and-citizenship-a-comparative-study-on-the-benefits-of.pdfIn PDF document text
    • http://www.gorillawalker.com/russia-dk-eyewitness-books.pdfIn PDF document text
    • http://www.gorillawalker.com/kodak-color-print-viewing-filter-kit.pdfIn PDF document text
    • http://www.gorillawalker.com/quien-depende-de-las-plantas-yellow-umbrella-books-spanish-spanish.pdfIn PDF document text
    • http://www.gorillawalker.com/chemical-physics-of-ionic-solutions-a-selection-of-invited-papers.pdfIn PDF document text
    • http://www.gorillawalker.com/cases-in-auditing.pdfIn PDF document text
    • http://www.gorillawalker.com/denver-s-favorite-places-colorado-littlebooks.pdfIn PDF document text
    • http://www.gorillawalker.com/the-end-of-finance.pdfIn PDF document text
    • http://www.gorillawalker.com/language-structure-and-environment-social-cultural-and-natural-factors-cognitive.pdfIn PDF document text
    • http://www.gorillawalker.com/youth-and-young-adulthood-critical-concepts-in-sociology.pdfIn PDF document text
    • http://www.gorillawalker.com/the-resilience-of-language-what-gesture-creation-in-deaf-children.pdfIn PDF document text
    • http://www.gorillawalker.com/intellectual-property-litigation.pdfIn PDF document text
    • http://www.gorillawalker.com/bebop-guitar-bk-cd.pdfIn PDF document text
    • http://www.gorillawalker.com/lamborghini-superfast-cars.pdfIn PDF document text
    • http://www.gorillawalker.com/peel-s-bloody-gang-blood-traffic-book-2-kindle-edition.pdfIn PDF document text
    • http://www.gorillawalker.com/let-the-dead-sleep-cafferty-quinn.pdfIn PDF document text
    • http://www.gorillawalker.com/beginning-sounds.pdfIn PDF document text
    • http://www.gorillawalker.com/las-aventuras-de-deyla-y-diego-el-cerdito-las-aventuras.pdfIn PDF document text
    • http://www.gorillawalker.com/the-american-fur-trade-of-the-far-west-two-volumes.pdfIn PDF document text
    • http://www.gorillawalker.com/stern-men.pdfIn PDF document text
    • http://www.gorillawalker.com/conflictolog-a-curso-de-resoluci-n-de-conflictos-spanish-edition.pdfIn PDF document text
    • http://www.gorillawalker.com/re-print-norway-sweden-and-denmark-handbook-for-travellers.pdfIn PDF document text
    • http://www.gorillawalker.com/the-middle-east-for-dummies.pdfIn PDF document text
    • http://www.gorillawalker.com/aventures-d-un-gentilhomme-breton-aux-iles-philippines-paperback-french.pdfIn PDF document text
    • http://www.gorillawalker.com/tendon-nei-kung-building-strength-power-and-flexibility-in-the.pdfIn PDF document text
    • http://www.gorillawalker.com/aerisia-gateway-to-the-underworld-the-sunset-lands-beyond-volume.pdfIn PDF document text
    • http://www.gorillawalker.com/the-breath-of-a-wok-unlocking-the-spirit-of-chinese.pdfIn PDF document text
    • http://www.gorillawalker.com/secret-battles-of-genghis-khan.pdfIn PDF document text
    • http://www.gorillawalker.com/unmanned-systems-integrated-roadmap-fy2013-2038.pdfIn PDF document text
    • http://www.gorillawalker.com/power-plant-theory-and-design.pdfIn PDF document text
    • http://www.gorillawalker.com/dark-souls-2-game-guide-tips-and-tricks-to-go.pdfIn PDF document text
    • http://www.gorillawalker.com/an-invitation-to-health-choosing-to-change-brief-edition-text.pdfIn PDF document text
    • http://www.gorillawalker.com/one-stroke-revised-basic-strokes-workbook-by-donna-dewberry.pdfIn PDF document text
    • http://www.gorillawalker.com/weather-the-storm-security-specialists-international-volume-3.pdfIn PDF document text
    • http://www.gorillawalker.com/bautismo-ninez-festivales-terranova-y-labrador-canada-photo-albums-n.pdfIn PDF document text
    • http://www.gorillawalker.com/interviewing-users-how-to-uncover-compelling-insights-kindle-edition.pdfIn PDF document text
    • http://www.gorillawalker.com/kanye-west-glow-in-the-dark-hardcover.pdfIn PDF document text
    • http://www.gorillawalker.com/the-best-thing-about-christmas-faith-that-sticks.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://www.aiim.org/pdfa/ns/extension/In PDF document text
    • http://www.aiim.org/pdfa/ns/schema#In PDF document text
    • http://www.aiim.org/pdfa/ns/property#In PDF document text
    • http://www.aiim.org/pdfa/ns/id/In PDF document text

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