Malicious PDF — malware analysis report

Static analysis result for SHA-256 2b126c8939c81a06…

MALICIOUS

PDF

35.3 KB Created: 2020-01-17 19:20:52 +03:00 Authoring application: LaTeX with hyperref package (via XeTeX 0.99992)
MD5: a8c5a2d0e810e770299dd08813c12fd5 SHA-1: aeb78a55b73941664d2792306c8f8684b7c07b77 SHA-256: 2b126c8939c81a065e12c82ce4453eeb7dedccfb72b717cb119044ee7f6889dc
90 Risk Score

Malware Insights

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

The PDF contains a large number of embedded URLs pointing to external PDF documents, a technique often used for SEO manipulation or to distribute malicious content. The ML classifier also flagged this PDF as malicious. No scripts were extracted from this sample, and the document body was heavily obfuscated and truncated, limiting further analysis of the specific lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8477

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/the-vision-of-hume-paperback.pdf
    • http://www.gorillawalker.com/shadows-of-the-past-a-novel-logan-point-volume-1.pdf
    • http://www.gorillawalker.com/the-picayune-s-creole-cook-book-american-antiquarian-cookbook-collection.pdf
    • http://www.gorillawalker.com/at-the-right-hand-of-longstreet-recollections-of-a-confederate.pdf
    • http://www.gorillawalker.com/multiagent-systems-algorithmic-game-theoretic-and-logical-foundations.pdf
    • http://www.gorillawalker.com/reaching-and-teaching-students-in-poverty-strategies-for-erasing-the.pdf
    • http://www.gorillawalker.com/wheat-free-classics-breakfast-and-dessert-recipes.pdf
    • http://www.gorillawalker.com/the-other-23-hours-child-care-work-with-emotionally-disturbed.pdf
    • http://www.gorillawalker.com/beelzebub-s-women-a-femdom-horror-story.pdf
    • http://www.gorillawalker.com/gloucester-and-the-forest-of-dean-landranger-maps-162-os.pdf
    • http://www.gorillawalker.com/400-cookies-biscuits-over-400-delicious-easy-to-make-recipes.pdf
    • http://www.gorillawalker.com/introduction-to-xafs-a-practical-guide-to-x-ray-absorption.pdf
    • http://www.gorillawalker.com/fargo-rock-city-a-heavy-metal-odyssey-in-rural-north.pdf
    • http://www.gorillawalker.com/workplace-plus-4-with-grammar-booster.pdf
    • http://www.gorillawalker.com/appreciating-differences-teaching-and-learning-in-a-culturally-diverse-classroom.pdf
    • http://www.gorillawalker.com/the-ciliated-protozoa-characterization-classification-and-guide-to-the-literature.pdf
    • http://www.gorillawalker.com/childrens-book-fun-facts-about-egypt-ancient-egypt-for-kids.pdf
    • http://www.gorillawalker.com/jim-clark-racing-hero.pdf
    • http://www.gorillawalker.com/the-art-of-animal-drawing-construction-action-analysis-caricature-dover.pdf
    • http://www.gorillawalker.com/michael-freeman-s-creative-photography-new-35mm-handbook.pdf
    • http://www.gorillawalker.com/schwerpunktsportart-badminton-in-der-jahrgangsstufe-11-german-edition.pdf
    • http://www.gorillawalker.com/the-inner-room.pdf
    • http://www.gorillawalker.com/autoimmune-the-autoimmune-disease-solution-how-to-minimize-and-heal.pdf
    • http://www.gorillawalker.com/extending-and-embedding-perl.pdf
    • http://www.gorillawalker.com/101-juice-diet-recipes-juice-diet-recipes-that-help-you.pdf
    • http://www.gorillawalker.com/sumerian-wisdom-anunnaki-prophecies-book-of-sajaha-the-seer-babylonian.pdf
    • http://www.gorillawalker.com/popular-50s-and-60s-glass-color-along-the-river-with.pdf
    • http://www.gorillawalker.com/the-tupac-amaru-and-catarista-rebellions-an-anthology-of-sources.pdf
    • http://www.gorillawalker.com/a-good-horse-is-never-a-bad-color-tales-of.pdf
    • http://www.gorillawalker.com/atlantic-halibut-hippoglossus-hippoglossus-and-pacific-halibut-h-stenolepis-and.pdf
    • http://www.gorillawalker.com/skin-and-body-care-the-natural-cruelty-free-way-to.pdf
    • http://www.gorillawalker.com/sweetie.pdf
    • http://www.gorillawalker.com/the-illustrated-encyclopedia-of-the-animal-kingdom-volume-17.pdf
    • http://www.gorillawalker.com/childcraft-the-how-and-why-library-mathemagic-vol-13.pdf
    • http://www.gorillawalker.com/human-resources-in-healthcare-managing-for-success.pdf
    • http://www.gorillawalker.com/strong-s-exhaustive-concordance-of-the-bible-the-old-time.pdf
    • http://www.gorillawalker.com/kicking-and-dreaming-a-story-of-heart-soul-and-rock.pdf
    • http://www.gorillawalker.com/electro-optical-instrumentation-sensing-and-measuring-with-lasers.pdf
    • http://www.gorillawalker.com/training-in-developing-nations-a-handbook-for-expatriates.pdf
    • http://www.gorillawalker.com/class-of-studies-of-chinese-ancient-civilization-in-peking-university.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/

Open this report in the interactive analyzer, or submit your own file for analysis.