Malicious PDF — malware analysis report

Static analysis result for SHA-256 eda1f50bef28bb82…

MALICIOUS

PDF

45.0 KB Created: 2019-04-11 09:57:43 +03:00 Authoring application: - (via pdfTeX-1.0b-pdfcrypt)
MD5: a73ddec89a58def00c2d84a23aeff2f8 SHA-1: 8b480b9321b175f4e204c498660b757c754d5298 SHA-256: eda1f50bef28bb823e205b300127e8c71505c16592466aaf933170c604009604
90 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links pointing to external PDF files, as indicated by the PDF_SEO_LINK_FARM heuristic. The ML classifier also flagged this PDF as malicious. The document body, though heavily obfuscated, contains URLs that are also listed in the extracted URLs. The primary attack pattern appears to be SEO manipulation or a link farm designed to distribute potentially malicious content hosted on www.gorillawalker.com.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9005

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/affordable-bed-breakfasts.pdf
    • http://www.gorillawalker.com/siberian-cats-as-pets-siberian-cats-facts-and-information-the.pdf
    • http://www.gorillawalker.com/the-complete-book-of-home-canning.pdf
    • http://www.gorillawalker.com/california-missions-to-cut-out.pdf
    • http://www.gorillawalker.com/sex-before-the-sexual-revolution-intimate-life-in-england-1918.pdf
    • http://www.gorillawalker.com/fit-to-be-bride-the-complete-wedding-workout.pdf
    • http://www.gorillawalker.com/professional-e-commerce-with-java-servlets.pdf
    • http://www.gorillawalker.com/philosophy-and-education-an-introduction-to-key-questions-and-themes.pdf
    • http://www.gorillawalker.com/your-life-student-book-bk-2.pdf
    • http://www.gorillawalker.com/a-caregiver-s-guide-to-alzheimer-s-disease-300-tips.pdf
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    • http://www.gorillawalker.com/dark-ghetto-dilemmas-of-social-power.pdf
    • http://www.gorillawalker.com/a-theory-of-value-routledge-frontiers-of-political-economy.pdf
    • http://www.gorillawalker.com/rev-up-your-writing-in-fictional-stories.pdf
    • http://www.gorillawalker.com/autocad-civil-3d-2015-essentials-autodesk-official-press.pdf
    • http://www.gorillawalker.com/to-bid-or-not-to-bid-the-law-of-total.pdf
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    • http://www.gorillawalker.com/trade-policies-and-agreements-in-the-era-of-globalization.pdf
    • http://www.gorillawalker.com/oecd-information-technology-outlook-2002-icts-and-the-information-economy.pdf
    • http://www.gorillawalker.com/basic-chiropractic-paraprofessional-manual.pdf
    • http://www.gorillawalker.com/the-northern-danelaw-its-social-structure-c-800-1100-studies.pdf
    • http://www.gorillawalker.com/biography-of-an-idea-memoirs-of-public-relations-counsel-edward.pdf
    • http://www.gorillawalker.com/adventures-in-nature-panama-adventures-in-nature-john-muir.pdf
    • http://www.gorillawalker.com/the-uncrowned-emperor-the-life-and-times-of-otto-von.pdf
    • http://www.gorillawalker.com/rayqelle-s-revenge-book-1-ebooks-for-inmates-of-correctional.pdf
    • http://www.gorillawalker.com/the-national-trust-manual-of-housekeeping-the-care-of-collections.pdf
    • http://www.gorillawalker.com/whispers-on-the-wing-poetry-prose-kindle-edition.pdf
    • http://www.gorillawalker.com/four-degrees-of-heat.pdf
    • http://www.gorillawalker.com/the-cultural-lives-of-whales-and-dolphins-kindle-edition.pdf
    • http://www.gorillawalker.com/bigger.pdf
    • http://www.gorillawalker.com/liu-chuxuan-1147-1203-and-his-commentary-on-the-daoist.pdf
    • http://www.gorillawalker.com/legal-guide-to-aia-documents.pdf
    • http://www.gorillawalker.com/official-blade-runner-strategy-guide-official-strategy-guides.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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