Malicious PDF — malware analysis report

Static analysis result for SHA-256 35f4a5f55c66ab57…

MALICIOUS

PDF

44.8 KB Created: 2018-11-26 20:03:43 +03:00 Authoring application: - (via Acrobat PDFWriter 3.02 for Windows NT)
MD5: b8839aaaae2e50498a7f2de3a577eb2d SHA-1: 9fb18e64cc72691d61dd20434a116915a6b42a6e SHA-256: 35f4a5f55c66ab57256adb791acec7981da479871156630af4410ce2db9f0d9a
90 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links to external websites, identified by the PDF_SEO_LINK_FARM heuristic. The ML_NYX_PDF_MALICIOUS heuristic also flagged the document as malicious. The embedded URLs are likely used to redirect users to malicious sites or for SEO poisoning. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9005

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/ketogenic-diets-5th-edition-kindle-edition.pdf
    • http://www.gorillawalker.com/uncommon-knowledge-hundreds-of-how-to-tips-from-your-favorite.pdf
    • http://www.gorillawalker.com/an-introduction-to-safe-scuba-diving.pdf
    • http://www.gorillawalker.com/sales-and-distribution-management-text-and-cases-with-sap-applications.pdf
    • http://www.gorillawalker.com/how-to-pay-zero-taxes-2008.pdf
    • http://www.gorillawalker.com/battletech-wars-of-reaving-battletech-sourcebooks.pdf
    • http://www.gorillawalker.com/japanese-the-manga-way-an-illustrated-guide-to-grammar-and.pdf
    • http://www.gorillawalker.com/imagination-and-a-pile-of-junk-a-droll-history-of.pdf
    • http://www.gorillawalker.com/die-indianischen-bev-lkerungsgruppen-der-sierra-nevada-de-santa-marta.pdf
    • http://www.gorillawalker.com/the-herald-of-hell-a-brother-athelstan-novel-of-medieval.pdf
    • http://www.gorillawalker.com/show-trans-a-nonfiction-novel.pdf
    • http://www.gorillawalker.com/jacques-marquette-and-louis-jolliet-explorers-of-the-mississippi-library.pdf
    • http://www.gorillawalker.com/susanna-wesley-servant-of-god-preteen-biographies-series.pdf
    • http://www.gorillawalker.com/synergetics-an-introduction-nonequilibrium-phase-transitions-and-self-organization-in.pdf
    • http://www.gorillawalker.com/painting-novice-how-to-paint-with-watercolors-the-easy-beginners.pdf
    • http://www.gorillawalker.com/application-of-statistical-process-control-in-the-pharmaceutical-and-biotechnology.pdf
    • http://www.gorillawalker.com/theses-opposed-to-huberianism-a-defense-of-the-lutheran-doctrine.pdf
    • http://www.gorillawalker.com/prolog-reproductive-endocrinology-and-infert.pdf
    • http://www.gorillawalker.com/the-finishing-school-a-novel-of-suspense.pdf
    • http://www.gorillawalker.com/reluctant-reversal-revenge-gender-swap-bdsm-erotica.pdf
    • http://www.gorillawalker.com/the-baseball-necrology-the-post-baseball-lives-and-deaths-of.pdf
    • http://www.gorillawalker.com/milking-the-tavern-maid.pdf
    • http://www.gorillawalker.com/real-estate-modelling-and-forecasting.pdf
    • http://www.gorillawalker.com/the-campaign-of-waterloo-a-military-history.pdf
    • http://www.gorillawalker.com/la-din.pdf
    • http://www.gorillawalker.com/undeterred-the-six-success-habits-of-women-in-emerging-economies.pdf
    • http://www.gorillawalker.com/theodore-boone-5-il-fuggitivo-italian-edition.pdf
    • http://www.gorillawalker.com/choices-in-financing-health-care-and-old-age-security-proceedings.pdf
    • http://www.gorillawalker.com/fossils-for-amateurs-a-guide-to-collecting-and-preparing-invertebrate.pdf
    • http://www.gorillawalker.com/taoists-tantrists-and-sex-how-tao-and-tantra-can-improve.pdf
    • http://www.gorillawalker.com/o-ahu-a-paradise-guide.pdf
    • http://www.gorillawalker.com/novaya-iskra-teacher-s-book-bk-3-nuffield-russian-project.pdf
    • http://www.gorillawalker.com/revolutionary-anomaly.pdf
    • http://www.gorillawalker.com/paleo-juicing-recipes-and-paleo-greek-recipes-2-book-combo.pdf
    • http://www.gorillawalker.com/laubach-way-to-reading-2-short-vowel-sounds.pdf
    • http://www.gorillawalker.com/the-futa-s-maid-collection-futa-on-female-bdsm-spanking.pdf
    • http://www.gorillawalker.com/heirloom-cookbook-recipes-handed-down-by-jewish-mothers-and-modern.pdf
    • http://www.gorillawalker.com/minnesota-school-trivia-an-amazing-and-fascinating-look-at-our.pdf
    • http://www.gorillawalker.com/elvis-the-complete-musical-catalog.pdf
    • http://www.gorillawalker.com/lily-learns-about-wants-and-needs-cloverleaf-books-tm-money.pdf
    • http://www.gorillawalker.com/japanese-
    • 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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