Malicious PDF — malware analysis report

Static analysis result for SHA-256 1379bb2b445f9441…

MALICIOUS

PDF

45.8 KB Created: 2018-12-15 08:33:37 +03:00 Authoring application: PScript5.dll Version 5.2.2 (via Acrobat Distiller 7.0.5 (Windows))
MD5: d310e31b124bff724cc7ce81830f4f11 SHA-1: 17d0e10f437aad8ba6d1c0fdf54f49247c93222e SHA-256: 1379bb2b445f94413dbd20510d73f2c74cc4dba499816a26eb5d5bcd0b21fb90
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links to external PDF files, as indicated by the PDF_SEO_LINK_FARM heuristic. While no scripts were explicitly extracted, the presence of embedded URLs and the nature of the heuristic suggest an attempt to manipulate search engine results or distribute malicious content via these links. The ML classifier also flagged the document as malicious.

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/earth-s-last-war-children-of-destiny-book-1-kindle.pdf
    • http://www.gorillawalker.com/wayne-gretzky-sports-superstars.pdf
    • http://www.gorillawalker.com/more-than-you-wanted-to-know-the-failure-of-mandated.pdf
    • http://www.gorillawalker.com/random-house-webster-s-student-notebook-dictionary.pdf
    • http://www.gorillawalker.com/photo-of-erotic-hot-vol-9-kindle-edition.pdf
    • http://www.gorillawalker.com/dracula-in-the-dark-the-dracula-film-adaptations-contributions-to.pdf
    • http://www.gorillawalker.com/design-of-concrete-structures-the-use-of-model-analysis.pdf
    • http://www.gorillawalker.com/british-chess-magazine-september-2015.pdf
    • http://www.gorillawalker.com/mundo-real-level-1-student-s-book-plus-eleteca-access.pdf
    • http://www.gorillawalker.com/fossil.pdf
    • http://www.gorillawalker.com/substantive-law-in-investment-treaty-arbitration-the-unsettled-relationship-between.pdf
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    • http://www.gorillawalker.com/dk-eyewitness-books-music.pdf
    • http://www.gorillawalker.com/mayhawk-rising-the-pendragon-king-book-1-kindle-edition.pdf
    • http://www.gorillawalker.com/proceedings-of-three-cie-workshops-on-criteria-for-road-lighting.pdf
    • http://www.gorillawalker.com/simians-cyborgs-and-women-the-reinvention-of-nature.pdf
    • http://www.gorillawalker.com/interventional-techniques-in-uro-oncology.pdf
    • http://www.gorillawalker.com/weekends-at-bellevue-nine-years-on-the-night-shift-at.pdf
    • http://www.gorillawalker.com/regueiras-coyote-blanco-spanish-edition-kindle-edition.pdf
    • http://www.gorillawalker.com/masteringgenetics-with-pearson-etext-standalone-access-card-for-concepts-of.pdf
    • http://www.gorillawalker.com/alexander-the-great-and-ancient-greece-rulers-and-their-times.pdf
    • http://www.gorillawalker.com/schein-s-common-sense-emergency-abdominal-surgery-an-unconventional-book.pdf
    • http://www.gorillawalker.com/daily-readings-from-the-christian-in-complete-armour-daily-readings.pdf
    • http://www.gorillawalker.com/ultimate-encyclopedia-of-snowboarding-all-action-guide.pdf
    • http://www.gorillawalker.com/live-by-night-low-price-cd-joe-coughlin-series.pdf
    • http://www.gorillawalker.com/the-way-to-a-empowering-children-with-autism-spectrum-and.pdf
    • http://www.gorillawalker.com/faking-reality-urban-books.pdf
    • http://www.gorillawalker.com/introduction-to-microelectronic-devices-prentice-hall-series-in-solid-state.pdf
    • http://www.gorillawalker.com/life-an-introduction-to-complex-systems-biology-understanding-complex-systems.pdf
    • http://www.gorillawalker.com/legend-of-the-giant-panda.pdf
    • http://www.gorillawalker.com/habitual-snoring-boosts-chronic-headache-risk-epidemiology-study-of-2.pdf
    • http://www.gorillawalker.com/biblioteca-esencial-101-libros-fundamentales-de-la-literatura-mundial-con.pdf
    • http://www.gorillawalker.com/the-new-braiding-handbook-60-modern-twists-on-the-classic.pdf
    • http://www.gorillawalker.com/service-providers-asps-isps-msps-nsps-and-wsps-a-wiley.pdf
    • http://www.gorillawalker.com/my-baby-sister-and-me-a-memory-scrapbook-for-kids.pdf
    • http://www.gorillawalker.com/odd-john-and-sirius.pdf
    • http://www.gorillawalker.com/envision-in-depth-reading-writing-and-researching-arguments-3rd-edition.pdf
    • 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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