Malicious PDF — malware analysis report

Static analysis result for SHA-256 2b4cffe95b0a8646…

MALICIOUS

PDF

43.0 KB Created: 2018-11-30 20:31:42 +03:00 Authoring application: Arbortext 5.4 (via PDFlib+PDI 7.0.4 (Win32))
MD5: c4cc96ebb968472848eee4ab0ac15033 SHA-1: 5adc8200789082cf525e1d98fe4d388a86625f64 SHA-256: 2b4cffe95b0a864627b22038b0d310507f755a9bdf6ba65858e13a0c038f68a4
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment

The PDF contains a large number of embedded links to external PDF files, a technique often used for SEO manipulation or to distribute malicious content. The ML classifier also flagged this PDF as malicious. No scripts were extracted from this sample, and the document body was heavily obfuscated, preventing a more detailed analysis of the specific lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8698

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

Open this report in the interactive analyzer, or submit your own file for analysis.