Malicious PDF — malware analysis report

Static analysis result for SHA-256 b3ca7488bf38ca47…

MALICIOUS

PDF

41.0 KB Created: 2018-12-14 20:00:55 +03:00 Authoring application: FrameMaker 11.0 (via Acrobat Distiller 11.0 (Windows))
MD5: 39af3bab253628566cf22b7df4686a40 SHA-1: fc3261e3072c376aae67e278aa236e2dba0c2ae2 SHA-256: b3ca7488bf38ca470b0ac79912e97945cfd7a7c393dc5d5f112d263ed5fa11b1
90 Risk Score

Malware Insights

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

The PDF contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic. The ML classifier also flagged this PDF as malicious. The document body is heavily obfuscated and does not provide clear textual lures. The primary attack pattern appears to be directing users to a link farm, potentially for SEO manipulation or to host further malicious content.

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/gateways-to-forever-the-story-of-the-science-fiction-magazines.pdf
    • http://www.gorillawalker.com/let-justice-roll-down-the-old-testament-ethics-and-christian.pdf
    • http://www.gorillawalker.com/healthy-desserts-40-quick-easy-cooking-gluten-free-cooking-wheat.pdf
    • http://www.gorillawalker.com/pollution-prevention-fundamentals-and-practice.pdf
    • http://www.gorillawalker.com/health-and-numbers-basic-biostatistical-methods.pdf
    • http://www.gorillawalker.com/sculpting-the-female-face-figure-in-wood-a-reference-and.pdf
    • http://www.gorillawalker.com/rice-pasta-tasty-cooking.pdf
    • http://www.gorillawalker.com/hungary-eyewitness-travel-guides.pdf
    • http://www.gorillawalker.com/young-coders.pdf
    • http://www.gorillawalker.com/marketing-research-essentials-with-spss.pdf
    • http://www.gorillawalker.com/architectural-rendering-techniques-color-reference.pdf
    • http://www.gorillawalker.com/accent-on-achievement-oboe-book-1-bk-cd.pdf
    • http://www.gorillawalker.com/the-wrath-of-ezra-leven-thumps.pdf
    • http://www.gorillawalker.com/a-companion-to-shakespeare-blackwell-companions-to-literature-and-culture.pdf
    • http://www.gorillawalker.com/one-world.pdf
    • http://www.gorillawalker.com/managing-credit-risk-the-great-challenge-for-global-financial-markets.pdf
    • http://www.gorillawalker.com/alone-with-my-best-friend-s-brother-taboo-first-time.pdf
    • http://www.gorillawalker.com/the-reagan-presidency-assessing-the-man-and-his-legacy.pdf
    • http://www.gorillawalker.com/fotografia-digital-digital-photographer-spanish-edition.pdf
    • http://www.gorillawalker.com/a-practical-treatise-of-astral-medicine-and-therapeutics.pdf
    • http://www.gorillawalker.com/quality-audits-for-iso-9001-2000-making-compliance-value-added.pdf
    • http://www.gorillawalker.com/the-autobiography-of-god-a-novel.pdf
    • http://www.gorillawalker.com/gorillas-nature-watch.pdf
    • http://www.gorillawalker.com/jingo-a-novel-of-discworld.pdf
    • http://www.gorillawalker.com/180-faith-charged-games-for-children-146-s-ministry-grades.pdf
    • http://www.gorillawalker.com/the-substitutionary-atonement-of-jesus-christ-kindle-edition.pdf
    • http://www.gorillawalker.com/corporate-information-strategy-and-management-text-and-cases.pdf
    • http://www.gorillawalker.com/gough-whitlam-a-tribute.pdf
    • http://www.gorillawalker.com/hebrew-ballads-and-other-poems-jewish-poetry-series.pdf
    • http://www.gorillawalker.com/janicak-text-5e-plus-sadock-text-3e-plus-doane-text.pdf
    • http://www.gorillawalker.com/guy-davenport-postmodernism-and-after-avant-garde-modernism-studies.pdf
    • http://www.gorillawalker.com/a-king-s-story-the-memoirs-of-h-r-h.pdf
    • http://www.gorillawalker.com/the-forbidden-cupboard-the-literacy-tower.pdf
    • http://www.gorillawalker.com/homes-for-everyone-my-neighborhood-discovery-library.pdf
    • http://www.gorillawalker.com/natural-relief-for-arthritis.pdf
    • http://www.gorillawalker.com/joy-of-the-road-second-book-of-new-zealand-life.pdf
    • http://www.gorillawalker.com/ziegel-im-hochbau-theorie-und-praxis-baukonstruktionen-german-edition.pdf
    • http://www.gorillawalker.com/what-is-the-name-of-this-book-the-riddle-of.pdf
    • http://www.gorillawalker.com/a-quaker-astonomer-reflects-can-a-scientist-also-be-religious.pdf
    • http://www.gorillawalker.com/cool-dubai-pocket-guide.pdf
    • http://www.gorillaw
    • 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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