Malicious PDF — malware analysis report

Static analysis result for SHA-256 5896b899bc67b3f2…

MALICIOUS

PDF

45.6 KB Created: 2018-11-15 18:34:00 +03:00 Authoring application: Writer (via OpenOffice.org 2.0.3)
MD5: 84191ca6d06b02c697246f5b03c71681 SHA-1: 4ed981cf05f01d3dba1b8548aa95ca5f78b3a61d SHA-256: 5896b899bc67b3f21b4d097246f33bfd56547779142527d4908189d184a92931
90 Risk Score

Malware Insights

MITRE ATT&CK
T1059 Command and Scripting Interpreter

The PDF contains a large number of embedded links to external PDF files, as indicated by the PDF_SEO_LINK_FARM heuristic. The ML classifier also flagged this PDF as malicious. The document body is heavily obfuscated and does not provide clear textual lures, but the sheer volume of links suggests a link-farming or redirection scheme. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8173

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-shadow-of-the-shadow.pdf
    • http://www.gorillawalker.com/communion-with-god-the-divine-and-the-human-in-the.pdf
    • http://www.gorillawalker.com/erotik-s-ndhaftes-begehren-erotisher-liebesroman-erotische-romane-erotik-ab.pdf
    • http://www.gorillawalker.com/bidrag-til-den-danske-literaturs-historie-slutningshelfte-rettelser-og-till.pdf
    • http://www.gorillawalker.com/ten-powerful-phrases-for-positive-people.pdf
    • http://www.gorillawalker.com/who-am-i-dissociative-identity-disorder-survivor-who-am-i.pdf
    • http://www.gorillawalker.com/the-mountains-the-adventures-of-a-tenderfoot-annotated-kindle-edition.pdf
    • http://www.gorillawalker.com/economic-development-and-gis.pdf
    • http://www.gorillawalker.com/passionate-minds-the-inner-world-of-scientists.pdf
    • http://www.gorillawalker.com/regions-adventures-in-time-and-place.pdf
    • http://www.gorillawalker.com/dealing-with-difficult-people-handle-aggression-manage-conflict-motivate-poor.pdf
    • http://www.gorillawalker.com/from-the-kippah-to-the-cross-a-jew-s-conversion.pdf
    • http://www.gorillawalker.com/a-dictionary-of-the-bible-oxford-paperback-reference.pdf
    • http://www.gorillawalker.com/official-keith-lemon-square-calendar-2015.pdf
    • http://www.gorillawalker.com/fishy-mercury-heavy-metal-tragedy-eat-your-favorite-fish-only.pdf
    • http://www.gorillawalker.com/no-boxes-a-triumph-of-spirit.pdf
    • http://www.gorillawalker.com/curing-courtney-doctors-couldn-t-save-her-so-her-mom.pdf
    • http://www.gorillawalker.com/bring-your-own-device-byod-to-work-trend-report.pdf
    • http://www.gorillawalker.com/islamic-patterns-an-analytical-and-cosmological-approach.pdf
    • http://www.gorillawalker.com/the-human-colon-cancer-are-concerned-about-reading-accelerated-health.pdf
    • http://www.gorillawalker.com/divine-strategies-for-prophetic-watchmen.pdf
    • http://www.gorillawalker.com/sell-everything-get-rid-of-all-your-stuff-without-a.pdf
    • http://www.gorillawalker.com/virtue-fortune-and-faith-a-genealogy-of-finance-barrows-lectures.pdf
    • http://www.gorillawalker.com/illustrated-math-dictionary.pdf
    • http://www.gorillawalker.com/second-generation-biometrics-the-ethical-legal-and-social-context-the.pdf
    • http://www.gorillawalker.com/erotica-too-hot-33-dirty-erotica-adult-short-stories-full.pdf
    • http://www.gorillawalker.com/neurosurgical-aspects-of-epilepsy-proceedings-of-the-fourth-advanced-seminar.pdf
    • http://www.gorillawalker.com/la-iglesia-del-futuro-spanish-edition.pdf
    • http://www.gorillawalker.com/by-j-r-r-tolkien-tolkien-calendar-2015-calendar.pdf
    • http://www.gorillawalker.com/new-month-new-moon-kar-ben-favorites-nature-in-israel.pdf
    • http://www.gorillawalker.com/high-country.pdf
    • http://www.gorillawalker.com/pleistocene-vertebrate-paleontology-in-north-america.pdf
    • http://www.gorillawalker.com/it-started-with-a-scandal-pennyroyal-green-series.pdf
    • http://www.gorillawalker.com/lust-potion-for-the-alpha-a-hot-historical-bbw-shifter.pdf
    • http://www.gorillawalker.com/a-concise-history-of-south-sudan.pdf
    • http://www.gorillawalker.com/johannesburg-world-city-map.pdf
    • http://www.gorillawalker.com/the-maverick-s-holiday-masquerade-montana-mavericks-what-happened-at.pdf
    • http://www.gorillawalker.com/marcelo-bielsa-los-11-caminos-al-gol-spanish-edition-kindle.pdf
    • http://www.gorillawalker.com/social-policy-in-aotearoa-new-zealand-a-critical-introduction.pdf
    • http://www.gorillawalker.com/pursuit-of-exhibit-35-in-the-oj-simpson-murder-trial.pdf
    • http://www.gorillawalker.com/the-mountains-the-adventures-of-a-tenderfoot-annotated-kindle-editio
    • 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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