Malicious PDF — malware analysis report

Static analysis result for SHA-256 a012e41c382570c8…

MALICIOUS

PDF

45.4 KB Created: 2019-03-17 03:09:12 +03:00 Authoring application: Acrobat PDFMaker 5.0 for Word (via Acrobat Distiller 5.0 (Windows))
MD5: 737ee810f6872b10708568b5a84608d0 SHA-1: 442b40414cf8e0aed66b001c3b9365a7668cfce9 SHA-256: a012e41c382570c8d43906d2d7669b033ff230d51b09b1854832d8ae8c3e464b
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded external links, as indicated by the PDF_SEO_LINK_FARM heuristic. The ML_NYX_PDF_MALICIOUS heuristic also flagged the document 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 large number of external PDF files hosted on the same domain, likely for SEO manipulation or to serve malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8439

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/imaging-of-nucleic-acids-and-quantitation-in-photonic-microscopy.pdf
    • http://www.gorillawalker.com/the-future-of-complexity-conceiving-a-better-way-to-understand.pdf
    • http://www.gorillawalker.com/blueprint-reading-fundamentals-for-the-water-and-wastewater-maintenance-operator.pdf
    • http://www.gorillawalker.com/international-investment-law-text-cases-and-materials.pdf
    • http://www.gorillawalker.com/way-of-the-whitetail-magic-and-mystery.pdf
    • http://www.gorillawalker.com/misstating-the-state-of-the-union-right-wing-media-distortions.pdf
    • http://www.gorillawalker.com/adaptive-control-2nd-edition.pdf
    • http://www.gorillawalker.com/how-the-shaman-stole-the-moon-in-search-of-ancient.pdf
    • http://www.gorillawalker.com/mathematics-applications-and-concepts-course-3-student-edition.pdf
    • http://www.gorillawalker.com/biochemistry-board-review-series.pdf
    • http://www.gorillawalker.com/relacion-descriptiva-de-los-maps-planos-etc-de-la-audiencia.pdf
    • http://www.gorillawalker.com/buena-salud-buena-vida-doce-claves-para-disfrutar-de-bienestar.pdf
    • http://www.gorillawalker.com/the-glass-god-magicals-anonymous.pdf
    • http://www.gorillawalker.com/alice-s-wonderland-a-visual-journey-through-lewis-carroll-s.pdf
    • http://www.gorillawalker.com/systems-and-models-complexity-dynamics-evolution-sustainability.pdf
    • http://www.gorillawalker.com/john-wayne-s-the-alamo-the-making-of-john-wayne.pdf
    • http://www.gorillawalker.com/name-sourcebook-for-writers-kindle-edition.pdf
    • http://www.gorillawalker.com/lonely-planet-argentina-country-guide.pdf
    • http://www.gorillawalker.com/pariser-lehrjahre-ein-lexikon-zur-ausbildung-deutscher-maler-in-der.pdf
    • http://www.gorillawalker.com/monsters-of-myth-and-legend-ii-role-aids.pdf
    • http://www.gorillawalker.com/encyclopedia-of-medical-immunology-allergic-diseases.pdf
    • http://www.gorillawalker.com/medical-terminology-a-short-course.pdf
    • http://www.gorillawalker.com/inclusive-teaching-the-journey-towards-effective-schools-for-all-learners.pdf
    • http://www.gorillawalker.com/un-reto-para-el-actor-a-challenge-for-the-actor.pdf
    • http://www.gorillawalker.com/graded-music-for-snare-drum-book-i-grades-1-2.pdf
    • http://www.gorillawalker.com/spectacular-homes-of-georgia-an-exclusive-showcase-of-georgia-s.pdf
    • http://www.gorillawalker.com/star-wars-the-new-jedi-order-books-1-3.pdf
    • http://www.gorillawalker.com/bitter-passions.pdf
    • http://www.gorillawalker.com/gothic-blue-book-iii-the-graveyard-edition.pdf
    • http://www.gorillawalker.com/school-of-bluegrass-guitar-bluegrass-ballads-waltzes.pdf
    • http://www.gorillawalker.com/project-manager-s-portable-handbook.pdf
    • http://www.gorillawalker.com/roscoe-turner-aviation-s-master-showman-smithsonian-history-of-aviation.pdf
    • http://www.gorillawalker.com/seymour-carraher-s-polymer-chemistry-seventh-edition.pdf
    • http://www.gorillawalker.com/a-theology-for-christian-education.pdf
    • http://www.gorillawalker.com/great-lives-job-workbook-great-lives-from-god-s-word.pdf
    • http://www.gorillawalker.com/yu-gi-oh-30.pdf
    • http://www.gorillawalker.com/casino-jack-and-the-united-states-of-money-superlobbyist-jack.pdf
    • http://www.gorillawalker.com/the-cloud-of-unknowing-a-new-translation-of-the-classic.pdf
    • http://www.gorillawalker.com/pearl-buck-in-china-journey-to-the-good-earth.pdf
    • http://www.gorillawalker.com/international-investment-law-text-ca
    • 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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