Malicious PDF — malware analysis report

Static analysis result for SHA-256 7d45065cdc6f5755…

MALICIOUS

PDF

44.5 KB Created: 2019-03-17 08:04:00 +03:00 Authoring application: Pscript.dll Version 5.0 (via AFPL Ghostscript 8.50)
MD5: 88c06092697d575a98767f3f15342d0e SHA-1: df16212718771f9fd4891616d7396cd6a5a83845 SHA-256: 7d45065cdc6f57557d9783a807fb09f867da5b60b09b8daccae1d6ad44127f2f
90 Risk Score

Malware Insights

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

The PDF contains a large number of embedded URLs pointing to external websites, 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 a malicious intent, possibly to distribute malware or engage in phishing by directing users to compromised or malicious sites. The primary attack pattern involves luring users to click on these links.

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/chinese-giant-salamanders-giant-animals.pdf
    • http://www.gorillawalker.com/einstein-and-the-ether.pdf
    • http://www.gorillawalker.com/the-oxford-handbook-of-emerging-adulthood-oxford-library-of-psychology.pdf
    • http://www.gorillawalker.com/gmelin-po-polonium-suppl-vol-closed-1-gmelin-handbook-of.pdf
    • http://www.gorillawalker.com/key-concepts-in-politics-and-international-relations-palgrave-key-concepts.pdf
    • http://www.gorillawalker.com/diseno-maquetacion-y-composicion-spanish-edition.pdf
    • http://www.gorillawalker.com/the-fallen-the-fallen-1-the-fallen-2-the-fallen.pdf
    • http://www.gorillawalker.com/te-puedo-sentir.pdf
    • http://www.gorillawalker.com/jovens-em-movimento-a-constru-o-da-identidade-em-contexto.pdf
    • http://www.gorillawalker.com/the-perfect-landscape-kindle-edition.pdf
    • http://www.gorillawalker.com/typographics-1-the-art-of-typography-from-digital-to-dyeline.pdf
    • http://www.gorillawalker.com/how-to-survive-getting-into-college-by-hundreds-of-students.pdf
    • http://www.gorillawalker.com/strength-for-the-journey-biblical-wisdom-for-daily-living-paperback.pdf
    • http://www.gorillawalker.com/new-hampshire-civil-jury-instructions-2013-edition.pdf
    • http://www.gorillawalker.com/flexible-sleeved-pile-foundations-for-aseismic-design-final-report-publication.pdf
    • http://www.gorillawalker.com/christ-have-mercy-how-to-put-your-faith-in-action.pdf
    • http://www.gorillawalker.com/the-chinese-laundryman-a-study-of-social-isolation-new-york.pdf
    • http://www.gorillawalker.com/from-athens-to-beijing-the-history-of-the-olympic-games.pdf
    • http://www.gorillawalker.com/lighting-for-digital-video-and-television.pdf
    • http://www.gorillawalker.com/archaeology-in-law.pdf
    • http://www.gorillawalker.com/sweat-and-blood-a-history-of-u-s-labor-unions.pdf
    • http://www.gorillawalker.com/intersectionality-and-politics-recent-research-on-gender-race-and-political.pdf
    • http://www.gorillawalker.com/polyphilo-or-the-dark-forest-revisited-an-erotic-epiphany-of.pdf
    • http://www.gorillawalker.com/the-best-of-jim-croce-easy-guitar-with-notes-tab.pdf
    • http://www.gorillawalker.com/understand-your-rights-because-you-re-about-to-lose-them.pdf
    • http://www.gorillawalker.com/coachisms-winning-words-from-the-country-s-finest-coaches.pdf
    • http://www.gorillawalker.com/approximation-theory-and-harmonic-analysis-on-spheres-and-balls-springer.pdf
    • http://www.gorillawalker.com/catch-fire-in-50-days-readiness-360-edition.pdf
    • http://www.gorillawalker.com/marketing-research-an-integrated-approach-2nd-edition.pdf
    • http://www.gorillawalker.com/transformational-and-charismatic-leadership-volume-2-the-road-ahead-monographs.pdf
    • http://www.gorillawalker.com/shakespearean-whodunnits.pdf
    • http://www.gorillawalker.com/understanding-the-bible-a-guide-to-reading-and-enjoying-scripture.pdf
    • http://www.gorillawalker.com/musings-of-a-full-moon.pdf
    • http://www.gorillawalker.com/sacraments-of-healing.pdf
    • http://www.gorillawalker.com/adagio-appassionato-op-57-orchestra-score-parts-oboe-1-part.pdf
    • http://www.gorillawalker.com/microbiology-an-introduction-6th-edition.pdf
    • http://www.gorillawalker.com/family-maps-of-williamson-county-illinois.pdf
    • http://www.gorillawalker.com/the-theologian-slave-trader.pdf
    • http://www.gorillawalker.com/forty-days-and-forty-nights-devotions-for-new-mothers.pdf
    • http://www.gorillawalker.com/catching-death-hunters-and-reapers-book-1.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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