Malicious PDF — malware analysis report

Static analysis result for SHA-256 7ecddc5371387ad9…

MALICIOUS

PDF

44.5 KB Created: 2019-04-06 12:33:49 +03:00 Authoring application: (Infix Pro) (via PDFKit.NET 3.0.58.0)
MD5: b0c7c21868494b0baa94eac851684f5a SHA-1: 4f4b5315b76034408f699e2307108e38be1dcea7 SHA-256: 7ecddc5371387ad977a2a7314fc0218017cdd231e45a390970b26ef447f1d6c1
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic. While no scripts were explicitly extracted, the ML_NYX_PDF_MALICIOUS classifier indicates a high probability of malicious intent. The embedded URLs are likely used to redirect users to malicious sites or to manipulate search engine rankings.

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/the-cimarron-kid-a-sam-spur-western-book-5.pdf
    • http://www.gorillawalker.com/beijing-official-guide-chinese-edition.pdf
    • http://www.gorillawalker.com/untamed-medieval-trilogy.pdf
    • http://www.gorillawalker.com/turn-waste-into-wealth-how-to-find-cash-in-every.pdf
    • http://www.gorillawalker.com/the-indignant-generation-a-narrative-history-of-african-american-writers.pdf
    • http://www.gorillawalker.com/heart-of-the-ocean-the-equilibrium-cycle-book-2.pdf
    • http://www.gorillawalker.com/the-power-of-imagination.pdf
    • http://www.gorillawalker.com/1944-the-second-world-war-at-sea-in-photographs.pdf
    • http://www.gorillawalker.com/walter-benjamin-the-story-of-a-friendship.pdf
    • http://www.gorillawalker.com/a-cup-of-honey-the-story-of-a-young-holocaust.pdf
    • http://www.gorillawalker.com/devolution-and-black-state-legislators-challenges-and-choices-in-the.pdf
    • http://www.gorillawalker.com/the-greatest-gardening-tips-in-the-world-the-greatest-tips.pdf
    • http://www.gorillawalker.com/by-kiera-van-gelder-the-buddha-and-the-borderline-my.pdf
    • http://www.gorillawalker.com/talking-about-detective-fiction-kindle-edition.pdf
    • http://www.gorillawalker.com/love-writing-a-guide-to-writing-romance.pdf
    • http://www.gorillawalker.com/the-usborne-official-detective-s-handbook-handbooks-digital.pdf
    • http://www.gorillawalker.com/eye-of-the-draco-darkfall-volume-1.pdf
    • http://www.gorillawalker.com/mathematics-for-the-ib-diploma-higher-level-statistics-and-probability.pdf
    • http://www.gorillawalker.com/que-s-official-internet-yellow-pages-2006-edition.pdf
    • http://www.gorillawalker.com/larry-fink-phaidon-55-s.pdf
    • http://www.gorillawalker.com/volleyball-prentice-hall-sport-series.pdf
    • http://www.gorillawalker.com/improve-your-golf-a-practical-step-by-step-instruction-course.pdf
    • http://www.gorillawalker.com/chinese-whispers-a-roy-groves-thriller-volume-3.pdf
    • http://www.gorillawalker.com/muses-madmen-and-prophets-rethinking-the-history-science-and-meaning.pdf
    • http://www.gorillawalker.com/gnostic-fragments-kindle-edition.pdf
    • http://www.gorillawalker.com/angel-eaters-the-angel-eaters-trilogy-part-i.pdf
    • http://www.gorillawalker.com/dogs-aren-t-men.pdf
    • http://www.gorillawalker.com/vectors-and-tensors-in-engineering-and-physics-second-edition.pdf
    • http://www.gorillawalker.com/useful-trees-and-shrubs-for-ethiopia-identification-propagation-and-management.pdf
    • http://www.gorillawalker.com/you-can-negotiate-anything-the-world-s-best-negotiator-tells.pdf
    • http://www.gorillawalker.com/god-s-creative-power-for-healing.pdf
    • http://www.gorillawalker.com/do-i-miss-my-uterus-post-menstrual-joy.pdf
    • http://www.gorillawalker.com/the-ancient-maya-true-books.pdf
    • http://www.gorillawalker.com/american-travelers-in-britain-a-survival-guide.pdf
    • http://www.gorillawalker.com/getting-past-ugly-understanding-custody-disputes-and-evaluations.pdf
    • http://www.gorillawalker.com/addicted-to-busy-recovery-for-the-rushed-soul-kindle-edition.pdf
    • http://www.gorillawalker.com/evolutionary-psychology-the-science-of-human-behavior-and-evolution.pdf
    • http://www.gorillawalker.com/into-thin-air-love-inspired-suspense.pdf
    • http://www.gorillawalker.com/the-skinny-on-credit-cards-how-to-master-the-credit.pdf
    • http://www.gorillawalker.com/concert-fun-2nd-trombone-first-division-band-course.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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