Malicious PDF — malware analysis report

Static analysis result for SHA-256 c86101c160c43fb5…

MALICIOUS

PDF

44.7 KB Created: 2018-11-26 20:03:32 +03:00 Authoring application: Adobe InDesign CC 2015 (Windows) (via Adobe PDF Library 15.0)
MD5: 1c6bd7a90e17edacd90ae5d5a751e435 SHA-1: 102bb7f85a30fe427011b8aaae4a3221f66ce1c1 SHA-256: c86101c160c43fb563dc29746fc516e6762e182bd8e8d6e6ab3ffb3bb51dade9
90 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links to external PDF files, as indicated by the PDF_SEO_LINK_FARM heuristic. The ML classifier also flagged the document as malicious. The embedded URLs suggest a link farm or SEO manipulation tactic, potentially to distribute malicious content or improve search engine ranking for malicious sites. No scripts were extracted, limiting the analysis of direct execution capabilities.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8822

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/section-409a-handbook.pdf
    • http://www.gorillawalker.com/fort-pillow-a-novel-of-the-civil-war.pdf
    • http://www.gorillawalker.com/charging-the-internal-combustion-engine-powertrain.pdf
    • http://www.gorillawalker.com/master-the-firefighter-exam.pdf
    • http://www.gorillawalker.com/career-counseling-and-development-in-a-global-economy.pdf
    • http://www.gorillawalker.com/colombia-land-of-flowers.pdf
    • http://www.gorillawalker.com/conservation-skills-judgement-method-and-decision-making-kindle-edition.pdf
    • http://www.gorillawalker.com/i-never-knew-i-had-a-choice-explorations-in-personal.pdf
    • http://www.gorillawalker.com/old-time-telephones-design-history-and-restoration-schiffer-book-for.pdf
    • http://www.gorillawalker.com/college-planning-for-gifted-students.pdf
    • http://www.gorillawalker.com/the-nativity-usborne-touchy-feely-board-books.pdf
    • http://www.gorillawalker.com/mp-skillbuilding-w-software-registration-card.pdf
    • http://www.gorillawalker.com/archive-of-radiation-effects-short-course-notebooks-ieee-nuclear-and.pdf
    • http://www.gorillawalker.com/differential-geometry-lie-groups-and-symmetric-spaces-graduate-studies-in.pdf
    • http://www.gorillawalker.com/davidde-penitente-k-469-full-score-a2673.pdf
    • http://www.gorillawalker.com/dicmatized-2-bitter-sweet-revenge-sexcapades.pdf
    • http://www.gorillawalker.com/max-perutz-and-the-secret-of-life.pdf
    • http://www.gorillawalker.com/w-h-auden-s-book-of-light-verse-new-york.pdf
    • http://www.gorillawalker.com/a-geographical-description-of-the-states-of-maryland-and-delaware.pdf
    • http://www.gorillawalker.com/empirical-estimates-in-stochastic-optimization-and-identification-applied-optimization.pdf
    • http://www.gorillawalker.com/food-insecurity-in-households-with-children-prevalence-severity-and-household.pdf
    • http://www.gorillawalker.com/bsl-minibeasts-signs-handy-mobi-let-s-sign-early-years.pdf
    • http://www.gorillawalker.com/prayers-for-crown-jewels-honoring-women-and-children-in-a.pdf
    • http://www.gorillawalker.com/algebra-and-trigonometry-for-college-students-2nd-edition.pdf
    • http://www.gorillawalker.com/hannah-and-the-gods-of-olympus-the-gods-of-olympus.pdf
    • http://www.gorillawalker.com/contaminated-communities-the-social-and-psychological-impacts-of-residential-toxic.pdf
    • http://www.gorillawalker.com/saving-seeds-the-economics-of-conserving-crop-genetic-resources-ex.pdf
    • http://www.gorillawalker.com/das-ged-chtnis-der-welten-cosmicomics.pdf
    • http://www.gorillawalker.com/play-a-long-series-vol-117-cole-porter-for-singers.pdf
    • http://www.gorillawalker.com/critical-care-skills-a-clinical-handbook-1e.pdf
    • http://www.gorillawalker.com/school-of-the-prophets-leader-s-guide.pdf
    • http://www.gorillawalker.com/agile-performance-improvement-the-new-synergy-of-agile-and-human.pdf
    • http://www.gorillawalker.com/rudimental-drum-pack.pdf
    • http://www.gorillawalker.com/steck-vaughn-focus-on-science-teacher-s-guide-level-e.pdf
    • http://www.gorillawalker.com/our-country-s-presidents.pdf
    • http://www.gorillawalker.com/hematopoietic-stem-cell-transplantation-a-manual-for-nursing-practice-second.pdf
    • http://www.gorillawalker.com/putting-the-pieces-together-a-practical-guide-to-recovery-from.pdf
    • http://www.gorillawalker.com/untucked-and-unzipped-interviews-and-recaps-of-rupaul-s-drag.pdf
    • http://www.gorillawalker.com/report-of-the-committee-on-folk-dancing-reprinted-from-the.pdf
    • http://www.gorillawalker.com/maya-math-simplified.pdf
    • http://www.gorillawalker.com/conservation-skills-judgement-method-and-decision-making-ki
    • 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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