Malicious PDF — malware analysis report

Static analysis result for SHA-256 b88adb345ac187b0…

MALICIOUS

PDF

30.8 KB Created: 2020-01-10 17:23:11 +03:00 Authoring application: AutoCAD 2010 2010 (18.0s (LMS Tech)) (via pdfplot10.hdi 10.0.55.0)
MD5: a907882d50b9339527161cfaa65c756e SHA-1: 0d748a109e278fc2f0743f7f0c83586e05d00a6e SHA-256: b88adb345ac187b00ee250a6e68009b9cdeddcdf54e296f73e83b4589d6edf56
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 files, 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, and the document body was heavily obfuscated, preventing a deeper analysis of user-facing lures.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8405

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/itil-lifecycle-essentials.pdf
    • http://www.gorillawalker.com/open-source-lab-how-to-build-your-own-hardware-and.pdf
    • http://www.gorillawalker.com/international-journal-of-economics-and-business-studies-2011-annual-edition.pdf
    • http://www.gorillawalker.com/a-treasure-of-seashells.pdf
    • http://www.gorillawalker.com/mexicans-in-the-making-of-america.pdf
    • http://www.gorillawalker.com/always-ready-a-to-z-guide-to-disaster-preparedness.pdf
    • http://www.gorillawalker.com/the-blessed-life-the-simple-secret-of-achieving-guaranteed-financial.pdf
    • http://www.gorillawalker.com/tube-the-invention-of-television.pdf
    • http://www.gorillawalker.com/leukemias-principles-and-practice-of-therapy.pdf
    • http://www.gorillawalker.com/hurricane-herbert-kindle-edition.pdf
    • http://www.gorillawalker.com/individual-differences-in-theory-of-mind-implications-for-typical-and.pdf
    • http://www.gorillawalker.com/netware-administration-netware-4-0-6-0.pdf
    • http://www.gorillawalker.com/opening-collected-writings-of-william-segal-1985-1997.pdf
    • http://www.gorillawalker.com/global-legends-and-lore-vampires-and-werewolves-around-the-world.pdf
    • http://www.gorillawalker.com/understanding-and-using-tuberculosis-data.pdf
    • http://www.gorillawalker.com/the-fall-of-the-shah.pdf
    • http://www.gorillawalker.com/snakes-built-for-the-hunt-predator-profiles.pdf
    • http://www.gorillawalker.com/meals-in-a-mug-kindle-edition.pdf
    • http://www.gorillawalker.com/fortune-cookie-monday-kindle-edition.pdf
    • http://www.gorillawalker.com/world-monarchies-and-dynasties.pdf
    • http://www.gorillawalker.com/world-beneath-the-city.pdf
    • http://www.gorillawalker.com/legends-of-windemere-prodigy-of-rainbow-tower-volume-2.pdf
    • http://www.gorillawalker.com/the-night-garden-a-novel-kindle-edition.pdf
    • http://www.gorillawalker.com/the-sixth-united-states-infantry-regiment-1855-to-reconstruction.pdf
    • http://www.gorillawalker.com/cliffsnotes-the-great-gatsby.pdf
    • http://www.gorillawalker.com/interact-and-engage.pdf
    • http://www.gorillawalker.com/l-odeur-du-soufre-expedition-en-afar-french-edition.pdf
    • http://www.gorillawalker.com/my-search.pdf
    • http://www.gorillawalker.com/individual-investor-s-guide-to-the-top-mutual-funds-2008.pdf
    • http://www.gorillawalker.com/dead-shot.pdf
    • http://www.gorillawalker.com/el-l-der-de-la-pr-xima-generaci-n-audio.pdf
    • http://www.gorillawalker.com/is-there-a-nutmeg-in-the-house.pdf
    • http://www.gorillawalker.com/service-ministry-with-heart-and-hands-lifeguide-bible-studies.pdf
    • http://www.gorillawalker.com/how-to-be-an-adult-in-love-letting-love-in.pdf
    • http://www.gorillawalker.com/unknown-worlds-tales-from-beyond.pdf
    • http://www.gorillawalker.com/rosemarie-trockel-anima.pdf
    • http://www.gorillawalker.com/six-passionate-women-a-comedy-about-creativity-and-stealing.pdf
    • http://www.gorillawalker.com/getting-started-in-3d-with-maya-create-a-project-from.pdf
    • http://www.gorillawalker.com/extractive-metallurgy-3-processing-operations-and-routes.pdf
    • http://www.gorillawalker.com/mechanics-of-damage-and-fracture.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/