Malicious PDF — malware analysis report

Static analysis result for SHA-256 373c5bc2f7eb5f6a…

MALICIOUS

PDF

44.2 KB Created: 2019-02-14 08:13:00 +03:00 Authoring application: Acrobat Elements 10.0.0 (Windows)
MD5: 7b42a160bcdc0d3f70e822d8325452ce SHA-1: 81848b403ae8ac0d89a826a2a9e0f01f3093c498 SHA-256: 373c5bc2f7eb5f6a4bc0ff5d13272e84408a548ea92230f4a7478fce9cb9d78d
90 Risk Score

Malware Insights

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

The PDF contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic. The ML classifier also flagged the document as malicious. The primary function appears to be hosting a link farm, likely for SEO manipulation or to serve as a redirector to malicious sites, as indicated by the numerous URLs pointing to the same domain.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8173

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/could-you-be-an-angel-today.pdf
    • http://www.gorillawalker.com/philosophy-of-biological-science-prentice-hall-foundations-series.pdf
    • http://www.gorillawalker.com/la-maravillosa-vida-llena-del-esp-ritu-spanish-edition.pdf
    • http://www.gorillawalker.com/pistol-pete-heir-to-a-dream.pdf
    • http://www.gorillawalker.com/le-pain-quotidien-cookbook.pdf
    • http://www.gorillawalker.com/delhi-city-guide-travel-guide.pdf
    • http://www.gorillawalker.com/process-safety-management-understand-the-elements-of-psm-29cfr-1910.pdf
    • http://www.gorillawalker.com/guglielmo-tell-ricordi-opera-vocal-score-series.pdf
    • http://www.gorillawalker.com/honor-s-price-a-warriors-of-the-mist-novel.pdf
    • http://www.gorillawalker.com/character-counts-leadership-qualities-in-washington-wilberforce-lincoln-and-solzhenitsyn.pdf
    • http://www.gorillawalker.com/21-dias-de-dieta-metabolica-el-original-spanish-edition.pdf
    • http://www.gorillawalker.com/schwimmkind-german-edition-kindle-edition.pdf
    • http://www.gorillawalker.com/the-golden-apple-a-musical-in-two-acts-complete-vocal.pdf
    • http://www.gorillawalker.com/student-solutions-manual-for-moore-notz-fligner-s-the-basic.pdf
    • http://www.gorillawalker.com/the-entrepreneurial-state-debunking-public-vs-private-sector-myths.pdf
    • http://www.gorillawalker.com/incendiary-a-phoenix-rising-rock-band-novel-book-2.pdf
    • http://www.gorillawalker.com/basketry.pdf
    • http://www.gorillawalker.com/the-best-approximation-and-optimization-in-locally-convex-spaces-approximation.pdf
    • http://www.gorillawalker.com/holmes-factor-sebastian-holmes.pdf
    • http://www.gorillawalker.com/access-data-analysis-cookbook.pdf
    • http://www.gorillawalker.com/party-food-made-easy-canapes-tapas-fondues-sushi.pdf
    • http://www.gorillawalker.com/end-of-the-world-the-last-days-volume-4.pdf
    • http://www.gorillawalker.com/natural-standard-herb-and-supplement-reference-evidence-based-clinical-reviews.pdf
    • http://www.gorillawalker.com/playing-for-real-a-text-on-game-theory.pdf
    • http://www.gorillawalker.com/selected-letters-of-cicero.pdf
    • http://www.gorillawalker.com/handbook-for-shooters-and-reloaders-volume-1.pdf
    • http://www.gorillawalker.com/music-study-in-germany-the-classic-memoir-of-the-romantic.pdf
    • http://www.gorillawalker.com/koneman-s-color-atlas-and-textbook-of-diagnostic-microbiology-6th.pdf
    • http://www.gorillawalker.com/leaves-of-gold-an-anthology-of-prayers-memorable-phrases-inspirational.pdf
    • http://www.gorillawalker.com/dartmoor-letterboxes.pdf
    • http://www.gorillawalker.com/nocturne-in-c-minor-op-48-no-1-instantly-download.pdf
    • http://www.gorillawalker.com/follow-up-to-the-committee-s-report-on-domestic-violence.pdf
    • http://www.gorillawalker.com/the-ascent-of-rum-doodle.pdf
    • http://www.gorillawalker.com/perspectives-on-contemporary-issues.pdf
    • http://www.gorillawalker.com/burning-blue-kindle-edition.pdf
    • http://www.gorillawalker.com/the-american-monetary-system-an-insider-s-view-of-financial.pdf
    • http://www.gorillawalker.com/bhopal-the-inside-story.pdf
    • http://www.gorillawalker.com/la-f-sica-del-futuro-c-mo-la-ciencia-determinar.pdf
    • http://www.gorillawalker.com/edge-of-regret.pdf
    • http://www.gorillawalker.com/first-aid-for-the-comlex-second-edition-first-aid-series.pdf
    • http://www.gorillawalker.com/guglielmo-tell
    • 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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