Malicious PDF — malware analysis report

Static analysis result for SHA-256 65f917c811e0ae84…

MALICIOUS

PDF

42.0 KB Created: 2019-03-18 08:27:11 +03:00 Authoring application: PScript5.dll Version 5.2 (via Acrobat Distiller 5.0 (Windows))
MD5: ee884e9eeac20b55a6cc11ec2001443e SHA-1: 542f9819e8e1c094522861dcf1fa2435e9dde9e5 SHA-256: 65f917c811e0ae842a28c17e223cafb4f86754688f17a3c6963c5dfba0781351
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

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. While no scripts were extracted, the sheer volume of links suggests an attempt to manipulate search engine results or to distribute a large number of potentially malicious documents.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8872

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/structural-equation-modeling-with-lisrel-essentials-and-advances.pdf
    • http://www.gorillawalker.com/to-the-island.pdf
    • http://www.gorillawalker.com/days-of-revival-history-of-methodism-in-ireland.pdf
    • http://www.gorillawalker.com/a-drinking-life.pdf
    • http://www.gorillawalker.com/living-language-french-platinum-edition-a-complete-beginner-through-advanced.pdf
    • http://www.gorillawalker.com/double-crossed-3-almost-identical.pdf
    • http://www.gorillawalker.com/parchman-farm-photographs-and-field-recordings-1947-1959.pdf
    • http://www.gorillawalker.com/easily-operated.pdf
    • http://www.gorillawalker.com/questions-and-answers-in-embedded-contexts-oxford-studies-in-theoretical.pdf
    • http://www.gorillawalker.com/unternehmensqualit.pdf
    • http://www.gorillawalker.com/los-incas-la-destruccion-del-imperio-del-per-volume-2.pdf
    • http://www.gorillawalker.com/naughty-rituals-femdom-submissive-male-humiliation.pdf
    • http://www.gorillawalker.com/walls-notebook.pdf
    • http://www.gorillawalker.com/nbde-dental-decks-2001-part-1-part-2-dental-decks.pdf
    • http://www.gorillawalker.com/long-range-propagation-of-low-frequency-radio-waves-between-the.pdf
    • http://www.gorillawalker.com/a-mage-s-play-kindle-edition.pdf
    • http://www.gorillawalker.com/city-of-shadows-sydney-police-photographs-1912-1948.pdf
    • http://www.gorillawalker.com/confessions-of-a-cpa-why-what-i-was-taught-to.pdf
    • http://www.gorillawalker.com/orion-and-the-dark.pdf
    • http://www.gorillawalker.com/police-culture-adapting-to-the-strains-of-the-job.pdf
    • http://www.gorillawalker.com/4-leather-bound-dictionaries-in-the-midget-series-with-display.pdf
    • http://www.gorillawalker.com/summer-of-49-harper-perennial-modern-classics.pdf
    • http://www.gorillawalker.com/great-monologues-for-young-actors-vol-ii.pdf
    • http://www.gorillawalker.com/cages-to-jump-shots-pro-basketball-s-early-years-paperback.pdf
    • http://www.gorillawalker.com/great-source-write-on-track-student-edition-skills-book.pdf
    • http://www.gorillawalker.com/big-english-plus-3-activity-book.pdf
    • http://www.gorillawalker.com/energia-solar-fotovoltaica-photovoltaic-solar-energy-calculo-de-una-instalacion.pdf
    • http://www.gorillawalker.com/psychotic-core.pdf
    • http://www.gorillawalker.com/the-baby-dodds-story-edition-as-told-to-larry-gara.pdf
    • http://www.gorillawalker.com/computer-models-in-biomechanics-from-nano-to-macro.pdf
    • http://www.gorillawalker.com/the-exile-sex-drugs-and-libel-in-the-new-russia.pdf
    • http://www.gorillawalker.com/conservatism-dream-and-reality-concepts-in-social-thought.pdf
    • http://www.gorillawalker.com/by-dave-austin-jim-peterik-cathy-lynn-songwriting-for-dummies.pdf
    • http://www.gorillawalker.com/biochemistry-biochemistry-voet.pdf
    • http://www.gorillawalker.com/bipolar-lsi-data-book.pdf
    • http://www.gorillawalker.com/gratitude-affirming-the-good-things-in-life.pdf
    • http://www.gorillawalker.com/exploring-the-ukulele.pdf
    • http://www.gorillawalker.com/the-pentium-microprocessor.pdf
    • http://www.gorillawalker.com/media-watermarking-security-and-forensics-2015-proceedings-of-spie.pdf
    • http://www.gorillawalker.com/digital-control-system-analysis-and-design-solutiions-manual-analysis-and.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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