Malicious PDF — malware analysis report

Static analysis result for SHA-256 1216585dd9fe1b90…

MALICIOUS

PDF

45.7 KB Created: 2019-02-12 18:31:07 +03:00 Authoring application: FPDF 1.53
MD5: 48acbdbb2d1f1efeaabbfad994e8cba5 SHA-1: 872cafac36a38accecafa2e94f80d3a5a2012f68 SHA-256: 1216585dd9fe1b90d6f67d51f3625b71f2a5a76a51b6b9f938328c51af09b5a0
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded URLs pointing to PDF files on the domain 'www.gorillawalker.com'. This is indicative of a link farm or SEO manipulation tactic, which can be used to distribute malicious content or improve search engine rankings for malicious sites. The ML classifier also flagged this PDF as malicious.

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/mrs-mcginty-s-dead-complete-unabridged.pdf
    • http://www.gorillawalker.com/betonblumen-7-betonblumen-street-art-passage-7-ripo-english-and.pdf
    • http://www.gorillawalker.com/incidents-of-travel-in-greece-turkey-russia-and-poland-vol.pdf
    • http://www.gorillawalker.com/readings-on-native-son-literary-companion-series.pdf
    • http://www.gorillawalker.com/the-works-of-jonathan-edwards-volume-i-ii-kindle-edition.pdf
    • http://www.gorillawalker.com/encyclopedia-of-constitutional-amendments-proposed-amendments-and-amending-issues-1789.pdf
    • http://www.gorillawalker.com/improving-school-board-effectiveness-a-balanced-governance-approach.pdf
    • http://www.gorillawalker.com/backstreet-boys-millennium-piano-vocal-guitar.pdf
    • http://www.gorillawalker.com/1000-exercises-japanese-icelandic-chitchat-worldwide-japanese-edition-kindle-edition.pdf
    • http://www.gorillawalker.com/rhymes-round-the-world.pdf
    • http://www.gorillawalker.com/czech-slovak-republics-road-maps-map-2005-author-freytag-berndt.pdf
    • http://www.gorillawalker.com/the-cost-of-ignorance-what-you-don-t-know-about.pdf
    • http://www.gorillawalker.com/31-facts-about-wisdom.pdf
    • http://www.gorillawalker.com/from-mercenaries-to-market-the-rise-and-regulation-of-private.pdf
    • http://www.gorillawalker.com/fighting-back-with-fat-1-kindle-edition.pdf
    • http://www.gorillawalker.com/journal-of-jasper-danckaerts-1679-1680.pdf
    • http://www.gorillawalker.com/the-ultimate-crm-handbook-strategies-and-concepts-for-building-enduring.pdf
    • http://www.gorillawalker.com/piece-work.pdf
    • http://www.gorillawalker.com/barca-a-people-s-passion.pdf
    • http://www.gorillawalker.com/mojave-national-preserve-recreation-map-tom-harrison-maps.pdf
    • http://www.gorillawalker.com/erotica-nick-s-new-boss-manwhore-romance-novels-erotica-for.pdf
    • http://www.gorillawalker.com/against-the-apocalypse-responses-to-catastrophe-in-modern-jewish-culture.pdf
    • http://www.gorillawalker.com/introduction-to-systems-thinking.pdf
    • http://www.gorillawalker.com/from-sorrow-to-dancing.pdf
    • http://www.gorillawalker.com/when-america-first-met-china-an-exotic-history-of-tea.pdf
    • http://www.gorillawalker.com/new-york-public-library-book-of-chronologies.pdf
    • http://www.gorillawalker.com/jacob-wackernagel-lectures-on-syntax-with-special-reference-to-greek.pdf
    • http://www.gorillawalker.com/cluck-cuddly-cuffs.pdf
    • http://www.gorillawalker.com/tragoediae-cum-incerti-poetae-cb-bibliotheca-scriptorum-graecorum-et-romanorum.pdf
    • http://www.gorillawalker.com/the-a-to-z-of-african-american-theater-the-a.pdf
    • http://www.gorillawalker.com/college-stress-solutions-stress-management-techniques-to-beat-anxiety-make.pdf
    • http://www.gorillawalker.com/the-art-of-ray-harryhausen.pdf
    • http://www.gorillawalker.com/the-10x-rule-the-only-difference-between-success-and-failure.pdf
    • http://www.gorillawalker.com/childrens-book-amazing-facts-pictures-about-ibis-kindle-edition.pdf
    • http://www.gorillawalker.com/the-articulate-executive-learn-to-look-act-and-sound-like.pdf
    • http://www.gorillawalker.com/the-handbook-of-group-communication-theory-research.pdf
    • http://www.gorillawalker.com/the-encyclopedia-of-neuropsychological-disorders.pdf
    • http://www.gorillawalker.com/the-civil-war-begins-opening-clashes-1861-fort-sumter-virginia.pdf
    • http://www.gorillawalker.com/when-mountains-move-a-novel-unabridged-audible-audio-edition.pdf
    • http://www.gorillawalker.com/the-synopsis-of-life-a-fractal-existence.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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