Malicious PDF — malware analysis report

Static analysis result for SHA-256 5142f7f80238ac54…

MALICIOUS

PDF

46.6 KB Created: 2019-04-06 10:12:15 +03:00 Authoring application: Adobe InDesign CC 2015 (Macintosh) (via Adobe PDF Library 15.0)
MD5: 88db4e4e32f32f292b070819be14a4d7 SHA-1: e846afd011b6494a576591ba05e5937c943df5ef SHA-256: 5142f7f80238ac5488bb56661c2185b782a7b0e346dde9d54a5377c96b328302
90 Risk Score

Malware Insights

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

The PDF was flagged by a critical heuristic for containing a large number of external links, suggesting a link farm or SEO manipulation tactic. The ML classifier also indicated maliciousness. No scripts were extracted, and the document body was truncated and unreadable, preventing a deeper analysis of the specific lure. The primary attack pattern observed is the mass distribution of external links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8263

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/tea-bioactivity-and-therapeutic-potential-medicinal-and-aromatic-plants-industrial.pdf
    • http://www.gorillawalker.com/bulletproof-web-design-improving-flexibility-and-protecting-against-worst-case.pdf
    • http://www.gorillawalker.com/the-official-blackbook-price-guide-to-world-coins-2015-18th.pdf
    • http://www.gorillawalker.com/hidden-heroism-black-soldiers-in-america-s-wars.pdf
    • http://www.gorillawalker.com/africa-uncorked-travels-in-extreme-wine-territory.pdf
    • http://www.gorillawalker.com/curriculum-content-for-students-with-moderate-and-severe-disabilities-in.pdf
    • http://www.gorillawalker.com/niagara-county-new-york-including-its-history-the-niagara-science.pdf
    • http://www.gorillawalker.com/introducing-the-infamous-reverend-rohan-k-kindle-edition.pdf
    • http://www.gorillawalker.com/ghostgirl-loca-por-amor-spanish-edition.pdf
    • http://www.gorillawalker.com/images-of-human-behavior-a-brain-spect-atlas.pdf
    • http://www.gorillawalker.com/la-constitucion-ante-el-congreso-o-sea-comentario-positivo-de.pdf
    • http://www.gorillawalker.com/buddhism-and-interfaith-dialogue-library-of-philosophy-and-religion.pdf
    • http://www.gorillawalker.com/mira-lloyd-dock-and-the-progressive-era-conservation-movement.pdf
    • http://www.gorillawalker.com/menstrual-migraines-more-severe-but-treatable-women-s-health-an.pdf
    • http://www.gorillawalker.com/a-field-guide-to-the-carnivores-of-the-world.pdf
    • http://www.gorillawalker.com/fight-nola-zombie-book-2.pdf
    • http://www.gorillawalker.com/400-must-have-words-for-the-toefl.pdf
    • http://www.gorillawalker.com/henrici-s-molds-yeasts-and-actinomycetes.pdf
    • http://www.gorillawalker.com/writing-7-minute-inspirational-life-experience-vignettes-create-and-link.pdf
    • http://www.gorillawalker.com/oxford-handbook-of-deaf-studies-language-and-education-psychology.pdf
    • http://www.gorillawalker.com/lctra-rpda-la-biblia-de-la-lectura-r.pdf
    • http://www.gorillawalker.com/pilgrim-returns-to-cape-cod-snow-centennial-editions.pdf
    • http://www.gorillawalker.com/el-archipi-lago-del-norte-territorio-de-m-xico-o.pdf
    • http://www.gorillawalker.com/offensive-as-hell-the-joys-of-jesus-freak-bagging.pdf
    • http://www.gorillawalker.com/schmitz-pop-music-for-violin-and-piano.pdf
    • http://www.gorillawalker.com/jungle-animals-picturepedia.pdf
    • http://www.gorillawalker.com/honduras-telecoms-mobile-and-broadband-download-pdf-digital.pdf
    • http://www.gorillawalker.com/on-the-nature-of-the-universe-oxford-world-s-classics.pdf
    • http://www.gorillawalker.com/the-light-of-day.pdf
    • http://www.gorillawalker.com/swapped-by-the-billionaire-gender-swap-erotica-kindle-edition.pdf
    • http://www.gorillawalker.com/advanced-building-systems-a-technical-guide-for-architects-and-engineers.pdf
    • http://www.gorillawalker.com/gary-gets-a-gift-the-sound-of-hard-g-sounds.pdf
    • http://www.gorillawalker.com/wwjd-today-one-year-of-daily-devotions-for-youth.pdf
    • http://www.gorillawalker.com/winning-direct-response-advertising-how-to-recognize-it-evaluate-it.pdf
    • http://www.gorillawalker.com/f-scott-fitzgerald-in-the-marketplace-the-auction-and-dealer.pdf
    • http://www.gorillawalker.com/philippine-assembly-official-directory-spanish-edition.pdf
    • http://www.gorillawalker.com/bugs.pdf
    • http://www.gorillawalker.com/here-there-and-everywhere-book-ii.pdf
    • http://www.gorillawalker.com/chinese-cooking-exciting-ideas-for-delicious-meals-hardcover.pdf
    • http://www.gorillawalker.com/the-mother-of-us-all-a-history-of-queen-nanny.pdf
    • http://www.gorillawalker.com/bulletproof-web-design-improving-flexibility-and-protecting-agains
    • 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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