Malicious PDF — malware analysis report

Static analysis result for SHA-256 2a6a3bf8bc8668d4…

MALICIOUS

PDF

43.5 KB Created: 2018-12-02 20:18:33 +03:00 Authoring application: CorelDRAW X5 (via Corel PDF Engine Version 15.1.0.588)
MD5: d2f22c08a6f2e5b11b2f396b5330e26c SHA-1: 5b2389bd329eee19c25280627b60f430bf60d2cd SHA-256: 2a6a3bf8bc8668d4a5c0818638d09bde7a8be692eb3abb93b4b784c3951aa497
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment

The PDF file contains a heuristic firing indicating a large number of external links, suggesting a link farm or redirection to malicious content. The ML classifier also flagged the document as malicious. The embedded URLs point to various PDF documents hosted on the same domain, likely serving as a lure or part of a larger SEO poisoning scheme to distribute malware.

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/mexican-american-mojo-popular-music-dance-and-urban-culture-in.pdf
    • http://www.gorillawalker.com/a-boy-and-his-journey.pdf
    • http://www.gorillawalker.com/belgium-and-western-germany-in-1833-volume-1.pdf
    • http://www.gorillawalker.com/other-people-s-blood-u-s-immigration-prisons-in-the.pdf
    • http://www.gorillawalker.com/getting-into-hospitality-mpw-getting-into-guides.pdf
    • http://www.gorillawalker.com/the-land-of-the-bey-being-impressions-of-tunis-under.pdf
    • http://www.gorillawalker.com/case-studies-in-immunology-6th-edition-geha-case-studies-in.pdf
    • http://www.gorillawalker.com/the-games-do-count-america-s-best-and-brightest-on.pdf
    • http://www.gorillawalker.com/the-everything-health-guide-to-adult-bipolar-disorder-reassuring-advice.pdf
    • http://www.gorillawalker.com/nicoletto-giganti-s-the-school-of-the-sword-a-new.pdf
    • http://www.gorillawalker.com/sing-to-the-lord-hymnal-pocket-edition.pdf
    • http://www.gorillawalker.com/running-fitness-from-5k-to-full-marathon.pdf
    • http://www.gorillawalker.com/kraftfahrzeugf-hrung-german-edition.pdf
    • http://www.gorillawalker.com/sultan-in-oman-venture-into-the-middle-east.pdf
    • http://www.gorillawalker.com/writing-fantastic-fiction-write-this-way.pdf
    • http://www.gorillawalker.com/troubleshooting-and-repair-of-diesel-engines.pdf
    • http://www.gorillawalker.com/armor-of-god-pamphlet-put-on-the-full-armor.pdf
    • http://www.gorillawalker.com/taps-r-test-of-auditory-perceptual-skills-revised-manual-psychological.pdf
    • http://www.gorillawalker.com/the-crimson-thread-of-abandon-stories.pdf
    • http://www.gorillawalker.com/where-to-ski-and-snowboard-2000.pdf
    • http://www.gorillawalker.com/chinua-achebe-and-fela-anikulapo-kuti-revolutionary-consciousness-in-music.pdf
    • http://www.gorillawalker.com/prentice-alvin.pdf
    • http://www.gorillawalker.com/all-i-have-to-do-is-dream-ssa-with-piano.pdf
    • http://www.gorillawalker.com/introduction-to-the-qur-an-london-qur-an-studies.pdf
    • http://www.gorillawalker.com/the-definitive-guide-to-pc-bsd.pdf
    • http://www.gorillawalker.com/constitutional-courts-and-deliberative-democracy-oxford-constitutional-theory.pdf
    • http://www.gorillawalker.com/mobile-web-designer-s-idea-book-the-ultimate-guide-to.pdf
    • http://www.gorillawalker.com/san-francisco-a-book-of-numbers-hello-world.pdf
    • http://www.gorillawalker.com/the-anatomy-and-action-of-the-horse-dover-anatomy-for.pdf
    • http://www.gorillawalker.com/interracial-romance-bwwm-erotica-a-multicultural-romantic-black-woman-white.pdf
    • http://www.gorillawalker.com/the-predicament-of-postmodern-theology-radical-orthodoxy-or-nihilist-textualism.pdf
    • http://www.gorillawalker.com/sophie-s-first-dance-faith-girlz-sophie-series-5.pdf
    • http://www.gorillawalker.com/marx-engels-collected-works-1852-1855-vol-39.pdf
    • http://www.gorillawalker.com/carrying.pdf
    • http://www.gorillawalker.com/from-the-inside-out-radical-gender-transformation-ftm-and-beyond.pdf
    • http://www.gorillawalker.com/blackboard-bundle-basic-labor-employment-law-for-paralegals.pdf
    • http://www.gorillawalker.com/antigua-pocket-guide-2nd-compact-and-practical-pocket-guides-for.pdf
    • http://www.gorillawalker.com/jenniemae-james-a-memoir-in-black-and-white.pdf
    • http://www.gorillawalker.com/revolutionaries.pdf
    • http://www.gorillawalker.com/the-london-jungle-book.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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