Malicious PDF — malware analysis report

Static analysis result for SHA-256 f877dc18a4f4c8f9…

MALICIOUS

PDF

42.5 KB Created: 2018-12-14 20:04:41 +03:00 Authoring application: FrameMaker 10.0.2 (via Acrobat Distiller 11.0 (Windows))
MD5: 037aa7e25ca4592d2850b8a7e4f7c056 SHA-1: 47e1159c88718a4b9f75d2555ad590a039b8e91f SHA-256: f877dc18a4f4c8f96567ea1d62086ea11dbdb8a9aa1e06fc3aed0db83af7d3ce
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a large number of embedded URLs pointing to external PDF files, a technique often used for SEO manipulation or to distribute malicious content. The ML classifier also flagged this PDF as malicious. No scripts were extracted, and the document body was heavily obfuscated, preventing a deeper analysis of the specific lure.

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/schubert-symphony-in-b-minor-for-violin-piano-level-advanced.pdf
    • http://www.gorillawalker.com/tempted-by-the-brat-forbidden-taboo-fantasies-the-fertile-brat.pdf
    • http://www.gorillawalker.com/embedded-sopc-design-with-nios-ii-processor-and-vhdl-examples.pdf
    • http://www.gorillawalker.com/the-bob-dylan-scrapbook-1956-1966.pdf
    • http://www.gorillawalker.com/easter-cookbook-21-healthy-easter-dessert-recipes-holiday-favorites-volume.pdf
    • http://www.gorillawalker.com/2014-2015-basic-and-clinical-science-course-bcsc-section-12.pdf
    • http://www.gorillawalker.com/introductory-clinical-pharmacology-text-only.pdf
    • http://www.gorillawalker.com/the-complete-guide-about-solar-energy-a-practical-beginners-guide.pdf
    • http://www.gorillawalker.com/secret-invasion-black-panther.pdf
    • http://www.gorillawalker.com/how-to-breathe-breathing-exercises-pranayama-for-relaxation-how-to.pdf
    • http://www.gorillawalker.com/principles-of-lowcountry-vernacular-design-a-supplement-to-the-neighborhood.pdf
    • http://www.gorillawalker.com/international-studies-in-china-an-annotated-bibliography.pdf
    • http://www.gorillawalker.com/monografia-del-departamento-de-potosi-bolivia-por-el-centro-de.pdf
    • http://www.gorillawalker.com/delighting-in-the-trinity-an-introduction-to-the-christian-faith.pdf
    • http://www.gorillawalker.com/die-sex-safari-afrikas-riesenschw-nze-german-edition.pdf
    • http://www.gorillawalker.com/take-control-of-your-anxiety-a-drug-free-approach-to.pdf
    • http://www.gorillawalker.com/no-finish-line.pdf
    • http://www.gorillawalker.com/legally-stoned-14-mind-altering-substances-you-can-obtain-and.pdf
    • http://www.gorillawalker.com/wine-log-a-journal-and-companion.pdf
    • http://www.gorillawalker.com/union-forever-the-lost-regiment-2.pdf
    • http://www.gorillawalker.com/railroad-to-burma.pdf
    • http://www.gorillawalker.com/studio-series-artist-s-tiles-white-75-pack.pdf
    • http://www.gorillawalker.com/martha-speaks-sniffing-for-clues-collection.pdf
    • http://www.gorillawalker.com/el-poseido-the-indwelling-left-behind-spanish-edition.pdf
    • http://www.gorillawalker.com/a-certain-scientific-railgun-vol-7.pdf
    • http://www.gorillawalker.com/twin-souls-the-nevermore-series-book-1-a-free-vampire.pdf
    • http://www.gorillawalker.com/how-to-write-a-resume-and-get-a-job-esperanza.pdf
    • http://www.gorillawalker.com/olivia-la-reina-del-circo-olivia-saves-the-circus-spanish.pdf
    • http://www.gorillawalker.com/the-berkshires.pdf
    • http://www.gorillawalker.com/substance-abuse-counseling-an-individualized-approach.pdf
    • http://www.gorillawalker.com/talking-heads-fear-of-music-33-1-3.pdf
    • http://www.gorillawalker.com/the-little-green-book-of-absinthe-an-essential-companion-with.pdf
    • http://www.gorillawalker.com/jeanette-pasin-sloan.pdf
    • http://www.gorillawalker.com/simple-gospel-simply-grace-how-your-christian-life-is-really.pdf
    • http://www.gorillawalker.com/core-concepts-of-information-technology-auditing.pdf
    • http://www.gorillawalker.com/alexander-graham-bell-raintree-perspectives-science-biographies.pdf
    • http://www.gorillawalker.com/cp18324-progressive-young-beginner-guitar-method-book-three-book-cd.pdf
    • http://www.gorillawalker.com/in-an-irish-country-kitchen.pdf
    • http://www.gorillawalker.com/safe-with-me-unabridged-audible-audio-edition.pdf
    • http://www.gorillawalker.com/the-yeast-connection-and-women-s-health.pdf
    • http://www.gorillawalke
    • 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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