Malicious PDF — malware analysis report

Static analysis result for SHA-256 4fbd942e0b84f3ae…

MALICIOUS

PDF

45.4 KB Created: 2019-04-08 09:01:00 +03:00 Authoring application: Adobe InDesign CS6 (Macintosh) (via Adobe PDF Library 10.0.1)
MD5: 61bdb7ed379aacac349f0a2d9d5369af SHA-1: fb479092abed6b615ceea1d216ee11c5a568368c SHA-256: 4fbd942e0b84f3aecf9be560da0c193a3dd76e8f708e3a06c6290c9181d8073b
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Phishing:Spearphishing Attachment T1059.001 Command and Scripting Interpreter: PowerShell

The PDF file was flagged by a machine learning classifier and contains a large number of external links to other PDF documents hosted on the same domain. This behavior is indicative of a link farm or SEO manipulation tactic, which can be used to distribute malicious content or improve the ranking of malicious websites. No scripts were extracted, and the document body was heavily obfuscated, limiting further analysis of the specific lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8812

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/information-architecture-for-the-web-and-beyond.pdf
    • http://www.gorillawalker.com/the-d-a-draws-a-circle.pdf
    • http://www.gorillawalker.com/legions-of-rome-the-definitive-history-of-every-imperial-roman.pdf
    • http://www.gorillawalker.com/bound-in-darkness-the-immortal-brothers-book-4.pdf
    • http://www.gorillawalker.com/parallel-programming-techniques-and-applications-using-networked-workstations-and-parallel.pdf
    • http://www.gorillawalker.com/the-secrets-to-stepfamily-success.pdf
    • http://www.gorillawalker.com/let-s-go-1999-new-zealand-the-world-s-bestselling.pdf
    • http://www.gorillawalker.com/alzheimer-s-disease-frequently-asked-questions.pdf
    • http://www.gorillawalker.com/pourquoi-rit-on-freud-et-le-mot-d-esprit-debats.pdf
    • http://www.gorillawalker.com/foundations-of-private-law-property-tort-contract-unjust-enrichment.pdf
    • http://www.gorillawalker.com/sexual-assault-and-sexual-harassment-in-the-u-s-military.pdf
    • http://www.gorillawalker.com/guerrilla-daughter.pdf
    • http://www.gorillawalker.com/debt-collections-stir-fried-or-deep-fried-asian-western-strategies.pdf
    • http://www.gorillawalker.com/casa-florida-spanish-style-houses-from-winter-park-to-coral.pdf
    • http://www.gorillawalker.com/passages-in-modern-sculpture.pdf
    • http://www.gorillawalker.com/beginning-asp-net-4-in-c-and-vb-kindle-edition.pdf
    • http://www.gorillawalker.com/sugar-free-me.pdf
    • http://www.gorillawalker.com/benjamin-banneker-history-maker-bios-lerner.pdf
    • http://www.gorillawalker.com/a-z-law-handbook-digital-edition-a-z-handbooks.pdf
    • http://www.gorillawalker.com/isabella-n-28-la-casa-dell-orso-italian-edition.pdf
    • http://www.gorillawalker.com/disney-movie-favorites-alto-saxophone.pdf
    • http://www.gorillawalker.com/mission-at-nuremberg-an-american-army-chaplain-and-the-trial.pdf
    • http://www.gorillawalker.com/the-complete-poems-of-emily-dickinson-publisher-little-brown-and.pdf
    • http://www.gorillawalker.com/creationism-s-upside-down-pyramid-suny-series-in-new-direction.pdf
    • http://www.gorillawalker.com/color-atlas-of-human-anatomy-locomotor-system-vol-1-flexibook.pdf
    • http://www.gorillawalker.com/the-modernization-of-sex-havelock-ellis-alfred-kinsey-william-masters.pdf
    • http://www.gorillawalker.com/easy-jazz-favorites-trumpet-1-trumpet-1.pdf
    • http://www.gorillawalker.com/the-botany-of-desire-a-plant-s-eye-view-of.pdf
    • http://www.gorillawalker.com/indian-history-biography-and-genealogy-pertaining-to-the-good-sachem.pdf
    • http://www.gorillawalker.com/comprehensive-vascular-and-endovascular-surgery-w-cd.pdf
    • http://www.gorillawalker.com/psilocybin-mushroom-handbook-easy-indoor-and-outdoor-cultivation.pdf
    • http://www.gorillawalker.com/jordan-wolfson.pdf
    • http://www.gorillawalker.com/lifemanship-some-notes-on-lifemanship-with-a-summary-of-recent.pdf
    • http://www.gorillawalker.com/let-s-play-dudley.pdf
    • http://www.gorillawalker.com/toward-a-theology-of-migration-social-justice-and-religious-experience.pdf
    • http://www.gorillawalker.com/tailgating-cookbook-the-world-of-burgers-brats-and-hotdogs-kindle.pdf
    • http://www.gorillawalker.com/outline-of-oral-and-dental-anatomy-outline-series.pdf
    • http://www.gorillawalker.com/envision-math-common-core-reteaching-and-practice-workbook-grade-6.pdf
    • http://www.gorillawalker.com/let-s-fix-america.pdf
    • http://www.gorillawalker.com/the-flat-tax-why-it-won-t-work-for-america.pdf
    • http://www.gorillawalker.com/let-s-go-1999-ne
    • 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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