Malicious PDF — malware analysis report

Static analysis result for SHA-256 7d209a20643eef34…

MALICIOUS

PDF

41.8 KB Created: 2018-11-26 20:07:18 +03:00 Authoring application: Microsoft Word (via Acrobat PDFWriter 4.0 para Windows)
MD5: 361f51b4de70493b7f62697e431c9b0a SHA-1: 96680726957d232aa5e36e9647324c4721399b7c SHA-256: 7d209a20643eef34b890057cdbda9b7f56c6831b19375bc2ae074019046963f9
90 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier as malicious and contains a large number of embedded external links, indicating a potential link farm or a method to distribute further malicious content. The heuristic 'PDF_SEO_LINK_FARM' specifically calls out the mass external PDF link farm. While no scripts were extracted, the sheer volume of links suggests an attempt to manipulate search engine results or redirect users to malicious sites.

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/even-that-indigo.pdf
    • http://www.gorillawalker.com/b-p-r-d-vol-6-the-universal-machine.pdf
    • http://www.gorillawalker.com/the-cultured-cabbage-klaus-kaufmann-s-rediscovered-series.pdf
    • http://www.gorillawalker.com/the-christy-miller-collection-vol-4-a-time-to-cherish.pdf
    • http://www.gorillawalker.com/toad-pocket-reference-for-oracle-pocket-reference-o-reilly.pdf
    • http://www.gorillawalker.com/industrial-commodity-statistic-yearbook-1994-industrial-commodity-statistics-yearbook.pdf
    • http://www.gorillawalker.com/the-stepchildren-of-science-psychical-research-and-parapsychology-in-germany.pdf
    • http://www.gorillawalker.com/lsat-with-tests-on-disk-master-the-lsat-book-cd.pdf
    • http://www.gorillawalker.com/time-life-and-man-the-fossil-record-an-introduction-to.pdf
    • http://www.gorillawalker.com/gesti-n-y-log-stica-de-almacenes-curso-formativo-spanish.pdf
    • http://www.gorillawalker.com/how-to-be-lovely-the-audrey-hepburn-way-of-life.pdf
    • http://www.gorillawalker.com/marijuana-jorge-s-rx.pdf
    • http://www.gorillawalker.com/seize-the-day-stronger-than-epilepsy.pdf
    • http://www.gorillawalker.com/the-black-sutra.pdf
    • http://www.gorillawalker.com/dark-eye.pdf
    • http://www.gorillawalker.com/prayers-from-a-childs-heart-a-delightful-read-a-long.pdf
    • http://www.gorillawalker.com/aristotle-metaphysics-books-i-ix-loeb-classical-library-no-271.pdf
    • http://www.gorillawalker.com/mathematical-perspectives-essays-on-mathematics-and-its-historical-development.pdf
    • http://www.gorillawalker.com/the-fallen-an-enemy-novel.pdf
    • http://www.gorillawalker.com/feathertop.pdf
    • http://www.gorillawalker.com/insect-plant-interactions-springer-series-in-experimental-entomology.pdf
    • http://www.gorillawalker.com/ir-and-raman-spectra-variables-in-data-interpretation.pdf
    • http://www.gorillawalker.com/encountering-ensemble-performance-books.pdf
    • http://www.gorillawalker.com/mock-epic-poetry-from-pope-to-heine.pdf
    • http://www.gorillawalker.com/the-international-relations-of-sub-saharan-africa.pdf
    • http://www.gorillawalker.com/j-k-lasser-s-small-business-taxes-2013-your-complete.pdf
    • http://www.gorillawalker.com/impetuous-innocent.pdf
    • http://www.gorillawalker.com/finding-keepers-annihilation-series-book-7-kindle-edition.pdf
    • http://www.gorillawalker.com/gallium-arsenide-digital-integrated-circuit-design-mcgraw-hill-series-in.pdf
    • http://www.gorillawalker.com/winning-jury-selection-expertise-experience-and-wisdom-kindle-edition.pdf
    • http://www.gorillawalker.com/infantry-cap-badges-and-titles.pdf
    • http://www.gorillawalker.com/get-it-done-write-a-cover-letter-kindle-edition.pdf
    • http://www.gorillawalker.com/descartes-meditations-on-first-philosophy.pdf
    • http://www.gorillawalker.com/today-on-the-delaware-penn-s-glorious-river.pdf
    • http://www.gorillawalker.com/your-long-erotic-weekend-four-days-of-passion-for-a.pdf
    • http://www.gorillawalker.com/an-introduction-to-community-health-brief-edition.pdf
    • http://www.gorillawalker.com/pby-catalina-pilot-s-flight-operating-instructions.pdf
    • http://www.gorillawalker.com/weathering-geomorphology-texts.pdf
    • http://www.gorillawalker.com/arrested-development-a-veteran-police-chief-sounds-about-protest-racism.pdf
    • http://www.gorillawalker.com/kaplan-pmbr-bar-review-new-york-strategies-and-tactics-for.pdf
    • http://www.gorillawalker.com/the-stepchildren-of-science-psychical-research-and-parapsyc
    • 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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