Malicious PDF — malware analysis report

Static analysis result for SHA-256 ae70a7e5fd3f89cc…

MALICIOUS

PDF

42.0 KB Created: 2018-11-30 20:08:38 +03:00 Authoring application: Word (via Mac OS X 10.8.4 Quartz PDFContext)
MD5: 4996b027864c0b6fb9f9b0939433e7d6 SHA-1: 43ee581ab90fd05d20aa1abab888c96ca16ec0aa SHA-256: ae70a7e5fd3f89cc348759f5d40f1f19ba9ba560b3b663ac2ec88131fea09a70
90 Risk Score

Malware Insights

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

The PDF contains a large number of embedded external links, as indicated by the PDF_SEO_LINK_FARM heuristic. The ML classifier also flagged this PDF as malicious with high confidence. The primary purpose appears to be SEO manipulation or acting as a link farm, potentially redirecting users to malicious sites or phishing content. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9027

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/a-guide-to-gymnastics.pdf
    • http://www.gorillawalker.com/la-protecci-n-de-los-derechos-frente-al-poder-de.pdf
    • http://www.gorillawalker.com/biostatistics-for-dummies-kindle-edition.pdf
    • http://www.gorillawalker.com/culture-and-customs-of-tanzania-cultures-and-customs-of-the.pdf
    • http://www.gorillawalker.com/the-body-my-first-discoveries.pdf
    • http://www.gorillawalker.com/the-crimson-hotel-and-audience-modern-plays.pdf
    • http://www.gorillawalker.com/the-dover-anthology-of-american-literature-volume-i-from-the.pdf
    • http://www.gorillawalker.com/builder-s-guide-to-mixed-and-humid-climates.pdf
    • http://www.gorillawalker.com/asthma-pocketcard-set.pdf
    • http://www.gorillawalker.com/you-never-give-me-your-money-the-beatles-after-the.pdf
    • http://www.gorillawalker.com/the-prevention-of-oral-disease.pdf
    • http://www.gorillawalker.com/by-fred-reed-curmudgeing-through-paradise-reports-from-a-fractal.pdf
    • http://www.gorillawalker.com/pcr-primer-design-methods-in-molecular-biology.pdf
    • http://www.gorillawalker.com/bindi-sue-irwin-randy-s-corner-day-by-day-with.pdf
    • http://www.gorillawalker.com/managerial-accounting-6th-sixth-edition-by-hartgraves-and-morse-published.pdf
    • http://www.gorillawalker.com/the-song-of-the-fall-an-epic-poem.pdf
    • http://www.gorillawalker.com/geometric-design-of-roads-handbook.pdf
    • http://www.gorillawalker.com/probabilistic-behavior-of-harmonic-functions-progress-in-mathematics.pdf
    • http://www.gorillawalker.com/kenya-country-studies-a-brief-comprehensive-study-of-kenya-kindle.pdf
    • http://www.gorillawalker.com/seductions-of-appeasement-victor-davis-hanson-collection-book-1.pdf
    • http://www.gorillawalker.com/hemodynamic-monitoring-made-incredibly-visual-incredibly-easy-series.pdf
    • http://www.gorillawalker.com/chronic-disease-epidemiology-and-control.pdf
    • http://www.gorillawalker.com/soul-thief-a-demon-trappers-novel.pdf
    • http://www.gorillawalker.com/pack-up-and-paint-with-watercolor.pdf
    • http://www.gorillawalker.com/the-new-information-professional-your-guide-to-careers-in-the.pdf
    • http://www.gorillawalker.com/basic-issues-in-psychopathology.pdf
    • http://www.gorillawalker.com/nomad-a-global-approach-to-interior-style.pdf
    • http://www.gorillawalker.com/from-rage-to-reason-my-life-in-two-americas.pdf
    • http://www.gorillawalker.com/heading-south.pdf
    • http://www.gorillawalker.com/cold-war-hot-wings-memoirs-of-a-cold-war-fighter.pdf
    • http://www.gorillawalker.com/contending-for-the-faith-the-church-s-engagement-with-culture.pdf
    • http://www.gorillawalker.com/exploring-the-dead-sea-scrolls-archaeology-and-literature-of-the.pdf
    • http://www.gorillawalker.com/seven-articles-on-geology-of-the-mother-lode-gold-belt.pdf
    • http://www.gorillawalker.com/rating-the-audience-the-business-of-media.pdf
    • http://www.gorillawalker.com/friends-fornever-digital.pdf
    • http://www.gorillawalker.com/cornering-carmen-dragon-lords-of-valdier-book-5.pdf
    • http://www.gorillawalker.com/ships-and-submarines-history-of-invention.pdf
    • http://www.gorillawalker.com/does-life-have-a-meaning-frontiers-of-philosophy.pdf
    • http://www.gorillawalker.com/understanding-managed-care-an-introduction-for-health-care-professionals.pdf
    • http://www.gorillawalker.com/electroceramics-materials-properties-applications.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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