Malicious PDF — malware analysis report

Static analysis result for SHA-256 97ca5c100a0d6f2e…

MALICIOUS

PDF

43.8 KB Created: 2019-02-13 19:57:25 +03:00 Authoring application: Windows PSCRIPT (via Acrobat Distiller 3.01 for Windows)
MD5: 120a82f8c928bd86ebcbc5e965dcaed3 SHA-1: ebdc9ee50257f2c62862a22abd0e75fdc14ad15e SHA-256: 97ca5c100a0d6f2e4fbb9166266c43a337e1d5b9e381be48be7995d4a46b7117
90 Risk Score

Malware Insights

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

The PDF contains a large number of external links, primarily hosted on www.gorillawalker.com, pointing to other PDF files. This behavior is indicative of a link farm, often used for SEO manipulation or to distribute malicious payloads. The ML classifier also flagged this PDF as malicious. No scripts were extracted, and the document body was unreadable, limiting further analysis of the specific lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8452

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/administering-sap-r-3-hr-human-resources-module.pdf
    • http://www.gorillawalker.com/climate-causes-and-effects-of-climate-change-our-fragile-planet.pdf
    • http://www.gorillawalker.com/blanche-lazzell-the-life-and-work-of-an-american-modernist.pdf
    • http://www.gorillawalker.com/the-mysticism-of-sound-and-music-revised-edition-shambhala-dragon.pdf
    • http://www.gorillawalker.com/a-year-in-beer.pdf
    • http://www.gorillawalker.com/abiding-in-mindfulness-volume-3-on-dhamma.pdf
    • http://www.gorillawalker.com/first-comes-love-then-comes-money-a-couple-s-guide.pdf
    • http://www.gorillawalker.com/maximum-danger-kennedy-the-missiles-and-the-crisis-of-american.pdf
    • http://www.gorillawalker.com/the-power-of-critical-thinking-effective-reasoning-about-ordinary-and.pdf
    • http://www.gorillawalker.com/his-finest-hour-penton-audio.pdf
    • http://www.gorillawalker.com/amish-romance-a-second-chance-amish-second-chance-book-1.pdf
    • http://www.gorillawalker.com/a-kid-s-guide-to-stock-market-investing-robbie-readers.pdf
    • http://www.gorillawalker.com/thought-tools-volume-1-fifty-timeless-truths-to-uplift-and.pdf
    • http://www.gorillawalker.com/european-conquest-and-the-rights-of-indigenous-peoples-the-moral.pdf
    • http://www.gorillawalker.com/optical-interference-coatings-springer-series-in-optical-sciences.pdf
    • http://www.gorillawalker.com/venice-wall-calendar.pdf
    • http://www.gorillawalker.com/getting-right-with-god-yourself-and-others-participant-s-guide.pdf
    • http://www.gorillawalker.com/reason-6-power-the-comprehensive-guide-paperback.pdf
    • http://www.gorillawalker.com/the-dynamics-of-ethnic-competition-and-conflict.pdf
    • http://www.gorillawalker.com/hide-my-light-a-romantic-suspense-thriller-novel-hide-me.pdf
    • http://www.gorillawalker.com/moses-a-man-of-selfless-dedication-great-lives-from-god.pdf
    • http://www.gorillawalker.com/korean-in-a-flash-kit-volume-1-downloadable-audio-included.pdf
    • http://www.gorillawalker.com/hajj-reflection-on-its-rituals.pdf
    • http://www.gorillawalker.com/the-book-of-the-mad-secret-books-of-paradys.pdf
    • http://www.gorillawalker.com/3-m-lodies-de-verlaine-for-voice-and-piano-1891.pdf
    • http://www.gorillawalker.com/kit-carson-he-led-the-way-great-explorations-benchmark.pdf
    • http://www.gorillawalker.com/the-physical-care-of-people-with-mental-health-problems-a.pdf
    • http://www.gorillawalker.com/your-medical-mind-how-to-decide-what-is-right-for.pdf
    • http://www.gorillawalker.com/the-filamentous-fungi-volume-1-industrial-mycology.pdf
    • http://www.gorillawalker.com/beyond-secret-the-upadesha-of-vairochana-on-the-practice-of.pdf
    • http://www.gorillawalker.com/setting-limits-medical-goals-in-an-aging-society-with-a.pdf
    • http://www.gorillawalker.com/fibroid-tumors-and-endometriosis.pdf
    • http://www.gorillawalker.com/m-business-communication-with-connect-plus.pdf
    • http://www.gorillawalker.com/talking-about-domestic-abuse-a-photo-activity-workbook-to-develop.pdf
    • http://www.gorillawalker.com/down-these-mean-streets.pdf
    • http://www.gorillawalker.com/bobcats-true-books-animals.pdf
    • http://www.gorillawalker.com/tenor-banjo-pocketbook.pdf
    • http://www.gorillawalker.com/human-trafficking-a-real-life-point-of-view-of-sex.pdf
    • http://www.gorillawalker.com/the-complete-day-skipper-skippering-with-confidence-right-from-the.pdf
    • http://www.gorillawalker.com/albert-einstein-giants-of-science.pdf
    • http://www.gorillawalker.com/a-year-
    • 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/