Malicious PDF — malware analysis report

Static analysis result for SHA-256 ae70793540db995c…

MALICIOUS

PDF

42.0 KB Created: 2018-12-03 17:10:12 +03:00 Authoring application: Adobe InDesign CS4 (6.0.4) (via Adobe PDF Library 9.0)
MD5: bcb447d3efc82b820fc36953747e0aa7 SHA-1: 5d12036bc7f7b31c1f76e2f42cde29c4888cf141 SHA-256: ae70793540db995c2592dde0e11152cbb7be7e5faa2f2517fd0a23a7ea71ef89
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded links to external PDF files, all hosted on the same domain. This behavior is indicative of a link farm, 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, limiting further analysis of the specific lure.

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/paddling-the-california-coast-paperback.pdf
    • http://www.gorillawalker.com/cosmology-a-class-manual-in-the-philosophy-of-bodily-being.pdf
    • http://www.gorillawalker.com/dolomite-alps-world-natural-heritage-late-summer-in-the-dolomites.pdf
    • http://www.gorillawalker.com/art-mosaic-in-celebration-of-calcutta-s-tercentenary-a-gold.pdf
    • http://www.gorillawalker.com/accent-on-achievement-electric-bass-book-1-bk-cd.pdf
    • http://www.gorillawalker.com/it-s-a-tough-game-son-real-world-of-professional.pdf
    • http://www.gorillawalker.com/heads-in-beds-a-reckless-memoir-of-hotels-hustles-and.pdf
    • http://www.gorillawalker.com/todo-rius-tomo-1-obras-de-rius-spanish-edition.pdf
    • http://www.gorillawalker.com/physical-geology-exercises-spiral-bound-2012-author-bush-john-h.pdf
    • http://www.gorillawalker.com/comeback-a-picturized-edition-of-shepherd-of-guadaloupe-a-classic.pdf
    • http://www.gorillawalker.com/animal-urges-erotic-gems-short.pdf
    • http://www.gorillawalker.com/field-guide-to-candy.pdf
    • http://www.gorillawalker.com/flinx-s-folly-pip-and-flinx.pdf
    • http://www.gorillawalker.com/the-nature-of-man.pdf
    • http://www.gorillawalker.com/the-fifteen-schoolgirls.pdf
    • http://www.gorillawalker.com/fortune-s-children-the-fall-of-the-house-of-vanderbilt.pdf
    • http://www.gorillawalker.com/bariatric-and-metabolic-surgery.pdf
    • http://www.gorillawalker.com/outsourcing-in-brief.pdf
    • http://www.gorillawalker.com/calling-all-engines-thomas-friends.pdf
    • http://www.gorillawalker.com/chasing-the-monsoon-a-modern-pilgrimage-through-india-by-frater.pdf
    • http://www.gorillawalker.com/21st-century-financial-network-financial-and-practical-teaching-of-higher.pdf
    • http://www.gorillawalker.com/among-the-leaves-queer-male-poets-on-the-midwestern-experience.pdf
    • http://www.gorillawalker.com/effects-of-some-mycotoxin-binders-on-aflatoxicosis-in-broiler-breeders.pdf
    • http://www.gorillawalker.com/austin-beer-capital-city-history-on-tap-american-palate.pdf
    • http://www.gorillawalker.com/como-dibujar-y-pintar-dragones-how-to-draw-and-paint.pdf
    • http://www.gorillawalker.com/navigating-newbie-ism-12-simple-ways-to-thrive-in-your.pdf
    • http://www.gorillawalker.com/the-popular-hits-collection.pdf
    • http://www.gorillawalker.com/healing-the-angry-brain-how-understanding-the-way-your-brain.pdf
    • http://www.gorillawalker.com/stokes-beginner-s-guide-to-hummingbirds.pdf
    • http://www.gorillawalker.com/the-income-tax-a-study-of-the-history-theory-and.pdf
    • http://www.gorillawalker.com/osakabenhannyasinkyo-japanese-edition-kindle-edition.pdf
    • http://www.gorillawalker.com/mixed-martial-arts-the-book-of-knowledge.pdf
    • http://www.gorillawalker.com/the-little-ships-alexis-carew-book-3.pdf
    • http://www.gorillawalker.com/flaws-in-the-glass-a-self-portrait.pdf
    • http://www.gorillawalker.com/bran-prairie-grooms-book-six-kindle-edition.pdf
    • http://www.gorillawalker.com/shadowdale-avatar-series-book-i-the-avatar-series-1.pdf
    • http://www.gorillawalker.com/basic-airbrush-painting-techniques-a-practical-guide-to-creative-airbrushing.pdf
    • http://www.gorillawalker.com/returning-home-a-century-of-african-american-repatriation.pdf
    • http://www.gorillawalker.com/the-kurds-genocide-and-persecution.pdf
    • http://www.gorillawalker.com/ladybug-girl-and-bingo.pdf
    • http://www.gorillawalker.c
    • 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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