Malicious PDF — malware analysis report

Static analysis result for SHA-256 bd65e1e48334cafc…

MALICIOUS

PDF

32.8 KB Created: 2019-12-13 19:51:47 +03:00 Authoring application: Microsoft® Office Word 2007
MD5: 5bef1f96bf47b11a83c39c68c8e72bfd SHA-1: b6a85a297be6af338462c5c73b26d142e2b10118 SHA-256: bd65e1e48334cafc77130472cd729644a09076508ce897e4561df5de04b144bc
90 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links to external PDF files, as indicated by the 'PDF_SEO_LINK_FARM' heuristic. The ML classifier also flagged the document as malicious. The document body is heavily obfuscated and does not provide clear textual lures, but the sheer volume of links suggests a malicious intent, possibly to manipulate search engine results or to serve as a distribution point for further malware. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8529

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/performing-digital-multiple-perspectives-on-a-living-archive-digital-research.pdf
    • http://www.gorillawalker.com/readings-in-philosophy-of-religion-ancient-to-contemporary.pdf
    • http://www.gorillawalker.com/the-idle-years.pdf
    • http://www.gorillawalker.com/hablemos-de-las-relaciones-saludables-spanish-edition.pdf
    • http://www.gorillawalker.com/bidrag-till-svensk-bokhistoria-swedish-edition.pdf
    • http://www.gorillawalker.com/barn-buddies-calendar-horses-their-friends.pdf
    • http://www.gorillawalker.com/american-public-school-finance-2nd-second-edition-by-owings-william.pdf
    • http://www.gorillawalker.com/from-seed-to-plant-paperback-book-cd.pdf
    • http://www.gorillawalker.com/the-female-population-of-france-in-the-19th-century-a.pdf
    • http://www.gorillawalker.com/burnt-offerings-anita-blake-vampire-hunter-book-7-publisher-jove.pdf
    • http://www.gorillawalker.com/fehlzeiten-report-2005-arbeitsplatzunsicherheit-und-gesundheit-german-edition.pdf
    • http://www.gorillawalker.com/xxx-porn-star-interviews-rising-stars-volume-3-kindle-edition.pdf
    • http://www.gorillawalker.com/deciding-what-to-do-about-your-gender-dysphoria-some-considerations.pdf
    • http://www.gorillawalker.com/strategies-for-college-writing-sentences-paragraphs-essays-2nd-edition.pdf
    • http://www.gorillawalker.com/mother-mary-ann-brown-newcomb-effingham-civil-war-nurse.pdf
    • http://www.gorillawalker.com/the-8051-microcontroller-and-embedded-systems-2nd-edition.pdf
    • http://www.gorillawalker.com/extraordinary-records.pdf
    • http://www.gorillawalker.com/the-vulpecula-cycle.pdf
    • http://www.gorillawalker.com/singular-spectrum-analysis-a-new-tool-in-time-series-analysis.pdf
    • http://www.gorillawalker.com/wills-mineral-processing-technology-eighth-edition-an-introduction-to-the.pdf
    • http://www.gorillawalker.com/songs-of-the-1940s-viola-40s-forties-decade-the-decade.pdf
    • http://www.gorillawalker.com/dancing-badminton-library-large-paper-edition.pdf
    • http://www.gorillawalker.com/the-gift-of-an-angel-for-parents-welcoming-a-new.pdf
    • http://www.gorillawalker.com/the-eye-of-the-eagle-john-donne-and-the-legacy.pdf
    • http://www.gorillawalker.com/a3-adenosine-receptors-from-cell-biology-to-pharmacology-and-therapeutics.pdf
    • http://www.gorillawalker.com/handbook-of-small-animal-mri.pdf
    • http://www.gorillawalker.com/locke-and-the-three-weres-an-erotic-modern-fairy-tale.pdf
    • http://www.gorillawalker.com/estambul-istanbul-guias-singulares-singular-guides-spanish-edition.pdf
    • http://www.gorillawalker.com/core-awareness-revised-edition-enhancing-yoga-pilates-exercise-and-dance.pdf
    • http://www.gorillawalker.com/joey-s-first-day-read-it-readers.pdf
    • http://www.gorillawalker.com/biological-signals-classification-and-analysis-lecture-notes-in-bioengineering.pdf
    • http://www.gorillawalker.com/high-blood-pressure-and-longevity-and-other-essays-selected-from.pdf
    • http://www.gorillawalker.com/allie-the-annoying-elephant.pdf
    • http://www.gorillawalker.com/nile-egyptian-civilization-history-of-civilization.pdf
    • http://www.gorillawalker.com/biographical-memoirs-of-the-late-rev-john-gano-of-frankfort.pdf
    • http://www.gorillawalker.com/espresso-quick-reference-guide-1994-publication.pdf
    • http://www.gorillawalker.com/plastic-molds-and-dies.pdf
    • http://www.gorillawalker.com/blind-alley-beliefs.pdf
    • http://www.gorillawalker.com/digital-pathology-historical-perspectives-current-concepts-future-applications.pdf
    • http://www.gorillawalker.com/defensive-soccer-tactics.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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