Malicious PDF — malware analysis report

Static analysis result for SHA-256 8cc57797bc312a61…

MALICIOUS

PDF

49.0 KB Created: 2018-11-23 08:00:58 +03:00 Authoring application: - (via ABBYY FineReader 9.0 Sprint)
MD5: 1702047c38a755342baf37dd1dfc7b8b SHA-1: 87a16c14b1cac22d8ece49f8c432e5d79601b085 SHA-256: 8cc57797bc312a614fd4be69a60709a43075c22c4f1896120661f6d9773c015b
90 Risk Score

Malware Insights

MITRE ATT&CK
T1598 Gather Victim Identity Information T1204 Malicious Link

The PDF contains a large number of embedded URLs pointing to various PDF documents on the same domain, as indicated by the PDF_SEO_LINK_FARM heuristic. This suggests a link farm or a distribution mechanism for other content. The ML classifier also flagged the PDF as malicious. No scripts were extracted from this sample, and the document body was truncated and unreadable, limiting further analysis of the immediate user-facing intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8509

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/beginning-cursive-handwriting-grade-3-homework-helper.pdf
    • http://www.gorillawalker.com/they-don-t-teach-corporate-in-college-3rd-edition-a.pdf
    • http://www.gorillawalker.com/the-dark-side-of-the-landscape-the-rural-poor-in.pdf
    • http://www.gorillawalker.com/the-human-form-and-its-use-in-art-a-series.pdf
    • http://www.gorillawalker.com/fringe-banking-check-cashing-outlets-pawnshops-and-the-poor.pdf
    • http://www.gorillawalker.com/let-s-go-budget-rome-the-student-travel-guide-let.pdf
    • http://www.gorillawalker.com/thalia-s-transformation-a-feudal-futanari-story.pdf
    • http://www.gorillawalker.com/the-writings-of-st-francis-of-assisi-forgotten-books.pdf
    • http://www.gorillawalker.com/excel-macros-that-automatically-create-and-send-outlook-emails-how.pdf
    • http://www.gorillawalker.com/ib-economics-standard-level-osc-ib-revision-guides-for-the.pdf
    • http://www.gorillawalker.com/thermal-analysis-volume-3-organic-and-macromolecular-chemistry-ceramics-earth.pdf
    • http://www.gorillawalker.com/the-cowboy-s-autumn-fall-grass-valley-cowboys-book-4.pdf
    • http://www.gorillawalker.com/es-saradojos-ar-tevi-dzejoli.pdf
    • http://www.gorillawalker.com/state-directory-2015-directory-ii-legislative-leadership-committees-staff-csg.pdf
    • http://www.gorillawalker.com/gesteinsbestimmung-im-gel-nde-german-edition.pdf
    • http://www.gorillawalker.com/microwave-measurement-iee-electrical-measurement-series.pdf
    • http://www.gorillawalker.com/chronicles-concerning-early-babylonian-kings-v1-introductory-chapters-including-records.pdf
    • http://www.gorillawalker.com/the-art-of-raw-food-delicious-simple-dishes-for-healthy.pdf
    • http://www.gorillawalker.com/best-canadian-resumes.pdf
    • http://www.gorillawalker.com/communications-for-law-enforcement-professionals-2003-publication.pdf
    • http://www.gorillawalker.com/the-pearl-of-the-east.pdf
    • http://www.gorillawalker.com/fracture-and-strength-of-solids-part-1-fracture-mechanics-of.pdf
    • http://www.gorillawalker.com/sosiale-wetenskap-vir-almal-gr-5-leerdersboek-afrikaans-edition.pdf
    • http://www.gorillawalker.com/verbraucherleitbilder-europaische-und-interdisziplinare-perspektiven-schriften-zum-europaischen-und-internationalen.pdf
    • http://www.gorillawalker.com/the-microbial-challenge-a-public-health-perspective.pdf
    • http://www.gorillawalker.com/core-curriculum-for-oncology-nursing-4th-edition.pdf
    • http://www.gorillawalker.com/pages-volume-1-4-collection-cd.pdf
    • http://www.gorillawalker.com/eatiquette-s-the-main-course-on-table-service-skills-tips.pdf
    • http://www.gorillawalker.com/how-to-win-the-mortgage-war-no-mortgage-no-debt.pdf
    • http://www.gorillawalker.com/lillian-roxon-s-rock-encyclopedia.pdf
    • http://www.gorillawalker.com/williams-sonoma-entertaining-thanksgiving-entertaining.pdf
    • http://www.gorillawalker.com/reflections-on-the-folklife-festival-an-ethnography-of-participant-experience.pdf
    • http://www.gorillawalker.com/wildcat-mountain-life-death-and-love-in-the-year-of.pdf
    • http://www.gorillawalker.com/ancient-syriac-documents-relative-to-the-earliest-establishment-of-christianity.pdf
    • http://www.gorillawalker.com/contemporary-security-management-second-edition.pdf
    • http://www.gorillawalker.com/conducting-educational-research.pdf
    • http://www.gorillawalker.com/black-skin-white-masks-pluto-classics.pdf
    • http://www.gorillawalker.com/the-best-of-gourmet-the-world-at-your-table.pdf
    • http://www.gorillawalker.com/dramatic-literature-for-children-a-century-in-review.pdf
    • http://www.gorillawalker.com/voip-and-unified-communications-internet-telephony-and-the-future-voice.pdf
    • http://www.gorillawalker.com/the-human-form-and-its-use-in
    • 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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