Malicious PDF — malware analysis report

Static analysis result for SHA-256 c41b97af9dda5f0c…

MALICIOUS

PDF

32.9 KB Created: 2020-02-21 02:33:13 +03:00 Authoring application: Word (via Mac OS X 10.8.5 Quartz PDFContext)
MD5: 50d950746791645067cb50cbac627e99 SHA-1: a937fa2810d5dcb17f249a9fd4aac78bbc128fdc SHA-256: c41b97af9dda5f0cac9e4239a17b747bb68dd479784bb1ab40e322419c468088
90 Risk Score

Malware Insights

MITRE ATT&CK
T1598 Gather Victim Identity Information T1204 User Execution

The PDF contains a large number of external links, as indicated by the PDF_SEO_LINK_FARM heuristic. The ML classifier also flagged the document as malicious. While no scripts were extracted, the sheer volume of links suggests an attempt to manipulate search engine results or redirect users to potentially malicious content hosted on the 'gorillawalker.com' domain.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8529

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/red-star-over-china.pdf
    • http://www.gorillawalker.com/lives-of-the-caesars-oxford-world-s-classics.pdf
    • http://www.gorillawalker.com/arduino-for-dummies-kindle-edition.pdf
    • http://www.gorillawalker.com/the-anatomy-of-letters.pdf
    • http://www.gorillawalker.com/lost-and-found-astonishing-headlines.pdf
    • http://www.gorillawalker.com/lsat.pdf
    • http://www.gorillawalker.com/by-megacalendars-country-gardens-weekly-engagement-planner-calendar-2015-egmt.pdf
    • http://www.gorillawalker.com/are-you-sure-behind-closed-doors-behind-closed-doors-series.pdf
    • http://www.gorillawalker.com/aerobic-degradation-of-the-azo-dye-acid-red-151-in.pdf
    • http://www.gorillawalker.com/itf-advanced-coaches-manual.pdf
    • http://www.gorillawalker.com/louisa-may-and-mr-thoreau-s-flute.pdf
    • http://www.gorillawalker.com/a-shred-of-hope.pdf
    • http://www.gorillawalker.com/shakespeare-for-one-women-the-complete-monologues-and-audition-pieces.pdf
    • http://www.gorillawalker.com/missoula-impressions-montana-s-five-valleys-impressions-farcountry-press.pdf
    • http://www.gorillawalker.com/a-survivors-haggadah.pdf
    • http://www.gorillawalker.com/financial-accounting-reporting-and-analysis-7th-edition.pdf
    • http://www.gorillawalker.com/the-illustrated-bible.pdf
    • http://www.gorillawalker.com/a-hand-book-for-travelers-in-switzerland-and-the-alps.pdf
    • http://www.gorillawalker.com/bunny-s-nursery-rhymes-preschool-pop-ups.pdf
    • http://www.gorillawalker.com/blood-passage-dark-caravan-cycle.pdf
    • http://www.gorillawalker.com/gout-diet-made-easy-important-foods-you-should-eat-or.pdf
    • http://www.gorillawalker.com/get-rid-of-your-accent-for-business-the-english-pronunciation.pdf
    • http://www.gorillawalker.com/virgil-the-aeneid-landmarks-of-world-literature.pdf
    • http://www.gorillawalker.com/sales-prospecting-for-dummies.pdf
    • http://www.gorillawalker.com/by-neville-f-hacker-hacker-moore-s-essentials-of-obstetrics.pdf
    • http://www.gorillawalker.com/a-brief-history-of-the-sacraments-baptism-and-communion.pdf
    • http://www.gorillawalker.com/trauermusik-music-of-mourning-viola.pdf
    • http://www.gorillawalker.com/knights-of-the-iron-cross-a-history-1939-1945.pdf
    • http://www.gorillawalker.com/sexual-interactions-basic-understandings.pdf
    • http://www.gorillawalker.com/acting-with-your-eyes-on-camera-eye-phrasing.pdf
    • http://www.gorillawalker.com/algeria-tunisia-michelin-national-maps.pdf
    • http://www.gorillawalker.com/the-hidden-shame-of-the-church-sexual-abuse-of-children.pdf
    • http://www.gorillawalker.com/tales-from-the-odyssey-2.pdf
    • http://www.gorillawalker.com/eric-carle-around-the-farm-play-a-sound.pdf
    • http://www.gorillawalker.com/small-firms-as-innovators-from-innovation-to-sustainable-growth-technology.pdf
    • http://www.gorillawalker.com/snow-first-encounter-with-the-wicked-queen-an-adult-fairy.pdf
    • http://www.gorillawalker.com/the-chip-how-two-americans-invented-the-microchip-and-launched.pdf
    • http://www.gorillawalker.com/integrated-library-systems-for-pcs-and-pc-networks-descriptive-and.pdf
    • http://www.gorillawalker.com/in-self-defense-kindle-edition.pdf
    • http://www.gorillawalker.com/love-s-eternal-fire-love-s-eternal-fire.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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