Malicious PDF — malware analysis report

Static analysis result for SHA-256 b95b553a01f760f9…

MALICIOUS

PDF

41.5 KB Created: 2018-12-02 10:55:23 +03:00 Authoring application: Adobe InDesign CS (3.0) (via Adobe PDF Library 6.0)
MD5: 8b51ac5a7320d0b79a101e6a7cb84976 SHA-1: e8a4b1804654d5ea56d5b440e96e0cfd04cf8ad3 SHA-256: b95b553a01f760f9a17bec925675a32623b38813dc09290b580eee1dccdeac91
90 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links pointing to external PDF files on the domain 'gorillawalker.com'. This behavior is indicative of a link farm or SEO manipulation tactic, which can be used to distribute malicious content or improve search engine rankings for malicious sites. The ML classifier also flagged this PDF as malicious with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9181

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/sorting-the-elements-the-periodic-table-at-work-let-s.pdf
    • http://www.gorillawalker.com/advanced-regulatory-control-applications-and-techniques.pdf
    • http://www.gorillawalker.com/tolley-s-employment-handbook.pdf
    • http://www.gorillawalker.com/wafer-bonding.pdf
    • http://www.gorillawalker.com/sonatine-sportive.pdf
    • http://www.gorillawalker.com/mccall-s-cooking-school-recipe-card-cakes-cookies-18-walnut.pdf
    • http://www.gorillawalker.com/ecofeminist-approaches-to-early-modernity-literatures-cultures-and-the-environment.pdf
    • http://www.gorillawalker.com/lloyd-george-twelve-essays.pdf
    • http://www.gorillawalker.com/united-states-congressional-serial-set-issue-2747.pdf
    • http://www.gorillawalker.com/classic-antique-fly-fishing-tackle-a-guide-for-collectors-anglers.pdf
    • http://www.gorillawalker.com/dr-jekyll-and-mr-hyde-aqa-gcse-english-literature-set.pdf
    • http://www.gorillawalker.com/the-travellers-guide-to-cyprus.pdf
    • http://www.gorillawalker.com/dear-mrs-gray.pdf
    • http://www.gorillawalker.com/a-dog-s-tail-alice-s-hindsight-of-alcohol-abuse.pdf
    • http://www.gorillawalker.com/opportunities-in-gerontology-and-aging-services-careers-rev-ed-opportunities.pdf
    • http://www.gorillawalker.com/crystals-and-crystal-structures.pdf
    • http://www.gorillawalker.com/drafting-patent-license-agreements.pdf
    • http://www.gorillawalker.com/healing-glaucoma-natural-medicine-for-self-healing-natural-vision-eye.pdf
    • http://www.gorillawalker.com/dramatica-a-new-theory-of-story.pdf
    • http://www.gorillawalker.com/how-i-retired-at-26-a-step-by-step-guide.pdf
    • http://www.gorillawalker.com/the-power-of-three-charmed.pdf
    • http://www.gorillawalker.com/boyhood-growing-up-male-a-multicultural-anthology.pdf
    • http://www.gorillawalker.com/human-nutrition-12e.pdf
    • http://www.gorillawalker.com/the-italian-wife.pdf
    • http://www.gorillawalker.com/inside-silicon-valley.pdf
    • http://www.gorillawalker.com/sharpeville-an-apartheid-massacre-and-its-consequences.pdf
    • http://www.gorillawalker.com/medical-applications-of-nuclear-physics-biological-and-medical-physics-biomedical.pdf
    • http://www.gorillawalker.com/mountain-bike-training-kindle-edition.pdf
    • http://www.gorillawalker.com/l-homme-qui-parlait-au-vent-french-edition-kindle-edition.pdf
    • http://www.gorillawalker.com/the-dip-a-little-book-that-teaches-you-when-to.pdf
    • http://www.gorillawalker.com/reinventing-the-bazaar-a-natural-history-of-markets.pdf
    • http://www.gorillawalker.com/enciclopedia-guadal-de-dinosaurios-guadal-encyclopedia-of-dinosaurs-spanish-edition.pdf
    • http://www.gorillawalker.com/the-life-and-times-of-william-boule-dead-girls-tell.pdf
    • http://www.gorillawalker.com/l-italiana-in-algeri-overture-for-theatre-orchestra-keyboard-conductor.pdf
    • http://www.gorillawalker.com/3d-modeling-and-printing-with-tinkercad-create-and-print-your.pdf
    • http://www.gorillawalker.com/then-and-now-in-the-gulf-islands-a-colourful-history.pdf
    • http://www.gorillawalker.com/pet-ct-atlas-interdisziplin-re-onkologische-neurologische-und-kardiologische-pet.pdf
    • http://www.gorillawalker.com/full-upright-and-locked-position-not-so-comfortable-truths-about.pdf
    • http://www.gorillawalker.com/children-s-garments-become-a-pattern-drafter-become-a-pattern.pdf
    • http://www.gorillawalker.com/facial-plastic-and-reconstructive-surgery-aesthetic-surgery.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/

Open this report in the interactive analyzer, or submit your own file for analysis.