Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa73133acf9ec49c…

MALICIOUS

PDF

46.0 KB Created: 2019-04-30 15:57:40 +03:00 Authoring application: ABBYY FineReader (via -)
MD5: 29fd58878610531c95623d43e1929376 SHA-1: dcd32bf46793da6259eec6af85b974f829a50a0e SHA-256: aa73133acf9ec49c59dd8d71ec3f5eefb4a7cfd02b0e674c4b2734c71b93173a
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious File

The PDF file was flagged by a machine learning classifier as malicious. Static analysis revealed a large number of embedded external links, indicating a link farm or a distribution mechanism for further content. The primary heuristic identified a 'PDF_SEO_LINK_FARM' with 32 external PDF links, suggesting a tactic to manipulate search engine results or distribute malicious files disguised as legitimate documents. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8974

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/shakespeare-his-life-his-language-his-theater-signet-classics.pdf
    • http://www.gorillawalker.com/quality-money-management-process-engineering-and-best-practices-for-systematic.pdf
    • http://www.gorillawalker.com/fantastic-facts-about-komodo-dragons-illustrated-fun-learning-for-kids.pdf
    • http://www.gorillawalker.com/dictionary-of-printing-and-publishing.pdf
    • http://www.gorillawalker.com/generations-and-geographies-in-the-visual-arts-feminist-readings.pdf
    • http://www.gorillawalker.com/alluring-new-mexico-engineered-enchantment-1821-2001.pdf
    • http://www.gorillawalker.com/journalism-theory-and-practice.pdf
    • http://www.gorillawalker.com/the-bond-book-third-edition-everything-investors-need-to-know.pdf
    • http://www.gorillawalker.com/police-suicide-is-police-culture-killing-our-officers-digital.pdf
    • http://www.gorillawalker.com/religion-in-the-schools-a-reference-handbook.pdf
    • http://www.gorillawalker.com/para-para-volume-1.pdf
    • http://www.gorillawalker.com/ethical-legal-and-professional-issues-in-counseling-5th-edition.pdf
    • http://www.gorillawalker.com/regulating-health-and-environmental-risks-under-wto-law-a-critical.pdf
    • http://www.gorillawalker.com/preschool-kindergarten-super-scholar.pdf
    • http://www.gorillawalker.com/the-death-of-tragedy-faber-library.pdf
    • http://www.gorillawalker.com/the-diagnosis-and-treatment-of-lung-cancer-multidisciplinary-exploration-chinese.pdf
    • http://www.gorillawalker.com/the-pictorial-encyclopedia-of-the-animal-kingdom.pdf
    • http://www.gorillawalker.com/the-oxford-handbook-of-reciprocal-adult-development-and-learning-oxford.pdf
    • http://www.gorillawalker.com/das-geheimnis-des-neunten-planeten-the-secret-of-the-ninth.pdf
    • http://www.gorillawalker.com/learning-curves-theory-models-and-applications-industrial-innovation-series.pdf
    • http://www.gorillawalker.com/index-to-the-book-shining-rivers-precious-land-a-book.pdf
    • http://www.gorillawalker.com/accept-no-mediocre-life-living-beyond-labels-libels-and-limitations.pdf
    • http://www.gorillawalker.com/design-with-constructal-theory.pdf
    • http://www.gorillawalker.com/roosters-2013-square-12x12-wall-calendar-multilingual-edition.pdf
    • http://www.gorillawalker.com/rivonia-unmasked.pdf
    • http://www.gorillawalker.com/business-in-a-backpack-how-to-build-and-run-a.pdf
    • http://www.gorillawalker.com/democracy-declassified-the-secrecy-dilemma-in-national-security.pdf
    • http://www.gorillawalker.com/evaluation-of-a-helium-purification-plant-design-case-study.pdf
    • http://www.gorillawalker.com/gardening-2012-slimline-calendar.pdf
    • http://www.gorillawalker.com/alfred-west-african-drum-dance-a-yankadi-macrou-celebration-student.pdf
    • http://www.gorillawalker.com/the-talk-of-the-party-political-labels-symbolic-capital-and.pdf
    • http://www.gorillawalker.com/rachel-meets-the-gang-at-the-hucow-inn.pdf
    • http://www.gorillawalker.com/the-eternal-promise.pdf
    • http://www.gorillawalker.com/iraq-the-sadrist-confrontations-an-article-from-aps-diplomat-redrawing.pdf
    • http://www.gorillawalker.com/teen-health-decisions-for-healthy-living-quizzes-and-tests-with.pdf
    • http://www.gorillawalker.com/policing-the-workshy-benefits-control-the-labour-market-and-the.pdf
    • http://www.gorillawalker.com/amy-tan-author-and-storyteller-signature-lives-modern-america-series.pdf
    • http://www.gorillawalker.com/augustus-v-new-amsterdam-casualty-co-of-baltimore-u-s.pdf
    • http://www.gorillawalker.com/scrabble-brd-6.pdf
    • http://www.gorillawalker.com/from-hills-to-alleys-manuel-montalvo-draws-on-cultural-diversities.pdf
    • http://www.gorillawalker.com/generations-and-geographies-
    • 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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