Malicious PDF — malware analysis report

Static analysis result for SHA-256 1e637c809da3f1d6…

MALICIOUS

PDF

48.0 KB Created: 2019-02-13 22:34:44 +03:00 Authoring application: - (via Acrobat PDFWriter 3.02 for Windows NT)
MD5: da4bc957db71ebbf718c168682fa0d76 SHA-1: 7ce5110edf59587533f28404d9c21289b412fe7d SHA-256: 1e637c809da3f1d6d46ee5beb7aa9b68fd5e0babfd41f4bac5b6dc78b149bfa0
90 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The PDF contains a large number of embedded URLs pointing to a single domain, identified by the PDF_SEO_LINK_FARM heuristic. This suggests a tactic to manipulate search engine results or to distribute a large volume of content, potentially malicious. The ML_NYX_PDF_MALICIOUS heuristic further supports the malicious classification. No scripts were extracted, and the document body was heavily obfuscated, limiting further analysis of the specific lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8527

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/cesa-129-reo-bernaldo-de-quiro-129-s-hispanic-notes.pdf
    • http://www.gorillawalker.com/books-to-die-for-the-world-s-greatest-mystery-writers.pdf
    • http://www.gorillawalker.com/silver-an-ogmios-team-novel-volume-1.pdf
    • http://www.gorillawalker.com/multisensory-control-of-posture.pdf
    • http://www.gorillawalker.com/gift-makes-easy-to-create-designs-using-your-favourite-craft.pdf
    • http://www.gorillawalker.com/the-magic-of-the-ballet-giselle.pdf
    • http://www.gorillawalker.com/instructor-test-prep-2016-book-and-tutorial-software-bundle-study.pdf
    • http://www.gorillawalker.com/winning-blackjack-without-counting-by-popik-david-s-2000.pdf
    • http://www.gorillawalker.com/educational-research-competencies-for-analysis-and-applications-myeducationlab-with-enhanced.pdf
    • http://www.gorillawalker.com/we-believe-and-confess-the-augsburg-confession-leader-s-guide.pdf
    • http://www.gorillawalker.com/the-elements-of-an-effective-dissertation-and-thesis-a-step.pdf
    • http://www.gorillawalker.com/pricing-for-results.pdf
    • http://www.gorillawalker.com/first-steps-in-digital-design-use-your-computer-to-create.pdf
    • http://www.gorillawalker.com/response-of-flexible-panels-to-turbulent-boundary-layer-excitation-massachusetts.pdf
    • http://www.gorillawalker.com/pnl-pour-les-ados-french-edition-kindle-edition.pdf
    • http://www.gorillawalker.com/statement-analysis-an-iss-course-workbook.pdf
    • http://www.gorillawalker.com/the-barrel-cortex-of-rodents-cerebral-cortex.pdf
    • http://www.gorillawalker.com/kepler.pdf
    • http://www.gorillawalker.com/axe.pdf
    • http://www.gorillawalker.com/private-houses-of-paris-the-hotels-particuliers-revealed.pdf
    • http://www.gorillawalker.com/werkstattorientierte-produktionsunterstutzung-konzeption-entwicklung-einfuhrung-und-anwendung-iao-tg-32.pdf
    • http://www.gorillawalker.com/huevos-parlantes-los-spanish-edition.pdf
    • http://www.gorillawalker.com/the-metaphysics-of-mind.pdf
    • http://www.gorillawalker.com/challenging-the-breast-cancer-legacy-a-program-of-emotional-support.pdf
    • http://www.gorillawalker.com/for-those-who-wonder-new-fourth-edition.pdf
    • http://www.gorillawalker.com/ap-calculus-ab-bc-rea-the-best-test-prep-for.pdf
    • http://www.gorillawalker.com/how-to-overcome-alcohol-addiction-for-life-the-book-of.pdf
    • http://www.gorillawalker.com/war-is-a-force-that-gives-us-meaning.pdf
    • http://www.gorillawalker.com/lonely-planet-malawi-mozambique-zambia-malawi-mozambique-and-zambia.pdf
    • http://www.gorillawalker.com/the-happiness-of-kati.pdf
    • http://www.gorillawalker.com/selling-big-growing-your-business-within-large-companies.pdf
    • http://www.gorillawalker.com/can-you-survive-an-earthquake-you-choose-survival-kindle-edition.pdf
    • http://www.gorillawalker.com/central-r-co-of-new-jersey-v-halges-u-s.pdf
    • http://www.gorillawalker.com/nursing-care-in-the-genomic-era-a-case-based-approach.pdf
    • http://www.gorillawalker.com/business-analysis-and-valuation-using-financial-statements-text-only.pdf
    • http://www.gorillawalker.com/measurement-uncertainty-fourth-edition-methods-and-applications.pdf
    • http://www.gorillawalker.com/soldier-of-god-macarthur-s-attempt-to-christianize-japan.pdf
    • http://www.gorillawalker.com/nials-laws-of-nigeria-companies-and-allied-matters-act.pdf
    • http://www.gorillawalker.com/organizational-and-process-reengineering-approaches-for-health-care-transformation.pdf
    • http://www.gorillawalker.com/mcdougal-littell-world-history-document-based-questions-strategies-and-practice.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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