Malicious PDF — malware analysis report

Static analysis result for SHA-256 2c1cd23e23bd01b8…

MALICIOUS

PDF

44.1 KB Created: 2018-11-26 20:06:53 +03:00 Authoring application: dvips 5.72 Copyright 1997 Radical Eye Software (www.radicaleye.com) (via Acrobat Distiller 5.0.5 (Windows))
MD5: a4c54f8b288104a68612f46e3232b43d SHA-1: 34b1afca61f9ab07c50c4b2337559c25b104ff8d SHA-256: 2c1cd23e23bd01b8228d48709d7c84bc2cbfce39cfd4f38f7526405703116d6b
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. The document body appears to be malformed or heavily obfuscated, but the presence of numerous links to external PDF files suggests a link farm or redirection to potentially malicious content. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9016

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/last-will-and-testament-of-your-name.pdf
    • http://www.gorillawalker.com/math-expressions-spanish-student-activity-book-volume-2-grade-3.pdf
    • http://www.gorillawalker.com/mi-primer-libro-de-astronomia-spanish-edition.pdf
    • http://www.gorillawalker.com/o-jerusalem-day-by-day-and-minute-by-minute-the.pdf
    • http://www.gorillawalker.com/digital-video-and-hd-algorithms-and-interfaces-the-morgan-kaufmann.pdf
    • http://www.gorillawalker.com/afgrundsdjuret-the-abysmal-brute-swedish-edition.pdf
    • http://www.gorillawalker.com/success-without-college-why-your-child-may-not-have-to.pdf
    • http://www.gorillawalker.com/makeup-makeovers-in-5-10-15-and-20-minutes-expert.pdf
    • http://www.gorillawalker.com/wayne-rooney-captain-of-england.pdf
    • http://www.gorillawalker.com/lost-in-time-i-a-contemporary-romance-sort-of-volume.pdf
    • http://www.gorillawalker.com/spiritual-warfare-volume-two-battling-against-carnality.pdf
    • http://www.gorillawalker.com/hair-and-skin-care-farsi-home-medical-books.pdf
    • http://www.gorillawalker.com/inteligencia-ecol.pdf
    • http://www.gorillawalker.com/boys-in-blue.pdf
    • http://www.gorillawalker.com/the-bride-stripped-bare-the-artist-and-the-female-nude.pdf
    • http://www.gorillawalker.com/vigilante-mine-relek-city-volume-1.pdf
    • http://www.gorillawalker.com/management-of-abdominal-hernias-3ed.pdf
    • http://www.gorillawalker.com/blueprints-for-continuous-improvement-lessons-from-the-baldrige-winners-ama.pdf
    • http://www.gorillawalker.com/china-s-silent-army-the-pioneers-traders-fixers-and-workers.pdf
    • http://www.gorillawalker.com/by-blood-fire-july-22-1946-the-attack-on-the.pdf
    • http://www.gorillawalker.com/milestone-moments-in-getting-your-phd-in-qualitative-research.pdf
    • http://www.gorillawalker.com/berlitz-german-cassette-pack.pdf
    • http://www.gorillawalker.com/man-about-the-house-george-and-mildred-the-definitive-companion.pdf
    • http://www.gorillawalker.com/berlitz-russian-cd-pack-berlitz-compact-disc-packs.pdf
    • http://www.gorillawalker.com/endemic-bird-areas-of-the-world-priorities-for-biodiversity-conservation.pdf
    • http://www.gorillawalker.com/death-angel.pdf
    • http://www.gorillawalker.com/the-supreme-court-vs-the-constitution-you-don-t-have.pdf
    • http://www.gorillawalker.com/beyond-duality-a-new-perspective-for-human-realization.pdf
    • http://www.gorillawalker.com/magnetoviscous-effects-in-ferrofluids-lecture-notes-in-physics-monographs.pdf
    • http://www.gorillawalker.com/barnum-and-bailey-s-favorite-belwin-young-band.pdf
    • http://www.gorillawalker.com/yaoi-a-shrine-of-male-relationships-lost-anal-virgin-in.pdf
    • http://www.gorillawalker.com/the-ghost-of-juniper-creek-tales-from-maple-ridge-book.pdf
    • http://www.gorillawalker.com/the-advancement-of-learning-oxford-francis-bacon.pdf
    • http://www.gorillawalker.com/coyote-s-mate-coyote-breeds-book-6.pdf
    • http://www.gorillawalker.com/solos-for-the-cello-player-accompaniment-cd.pdf
    • http://www.gorillawalker.com/wok-it.pdf
    • http://www.gorillawalker.com/little-mermaid-dma-learntodraw-books.pdf
    • http://www.gorillawalker.com/the-four-hour-forex-little-dirty-secrets-and-weird-profitable.pdf
    • http://www.gorillawalker.com/what-s-a-mammal-all-about-animals.pdf
    • http://www.gorillawalker.com/they-knew-billy-the-kid-interviews-with-old-time-new.pdf
    • http://www.gorillawalker.com/makeup-makeov
    • 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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