Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
• PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
  PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
• Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
  Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
• Embedded JS stream low PDF_JS
  PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
• External URI info PDF_URI
  PDF contains an external URL action
• Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
  The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
• 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 https://crysiq.ru/uplcv?utm_term=neonatal+hypocalcemia+pdf PDF link annotation

  • http://bukharaatlanta.com/sites/default/files/file/95760816873.pdfIn PDF document text
  • http://www.grupohk.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1609bbc62acaaf---38579610400.pdfIn PDF document text
  • http://hillcresthigh1971.com/clients/9/9f/9fbf9047a6869172a982db6f42f05a9a/File/gagebevekixuzojewize.pdfIn PDF document text
  • https://mandalaconfeccao.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1608e91417b79c---66471343216.pdfIn PDF document text
  • https://moraure.net/js/ckfinder/userfiles/files/sigosobesetinomo.pdfIn PDF document text
  • https://congchunghadong.com/uploads/files/xigeropukoluku.pdfIn PDF document text
  • https://daluxerealty.com/wp-content/plugins/super-forms/uploads/php/files/59a2e2c2dfc305b38b3e9613f74151d8/jiwodirunukubutixesid.pdfIn PDF document text
  • https://alcc.vn/wp-content/plugins/super-forms/uploads/php/files/o82gb5bp6m5cn166fn0puhis30/74038307166.pdfIn PDF document text
  • https://pioneerlift.com/upfiles/editor/files/54310785257.pdfIn PDF document text
  • http://barcelonahotel.vn/UpLoadFile/file/25708642963.pdfIn PDF document text
  • http://seabeachthailand.com/UserFiles/file/17694062492.pdfIn PDF document text
  • https://akonis.ch/userfiles/files/xupam.pdfIn PDF document text
  • http://yilip.net/userData/board/file/86728044090.pdfIn PDF document text
  • http://xn--90ad5ackt1d.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/3d82cf5069b6bf60a2d0a6d21ca6bc77/72814842610.pdfIn PDF document text
  • http://szolnokepul.hu/userfiles/file/50526200512.pdfIn PDF document text
  • http://parvazyab.net/basefile/api203/files/58979082315.pdfIn PDF document text
  • http://anhopphat.com/uploads/files/busisoz.pdfIn PDF document text
  • https://www.straightmyteeth.eu/wp-content/plugins/super-forms/uploads/php/files/d32c61b87544d283a13220f39210c777/pibadelodugagewuzojidoti.pdfIn PDF document text
  • https://buyafranchise.org/files/files/88402975246.pdfIn PDF document text
  • https://ecoinkworld.com/wp-content/plugins/super-forms/uploads/php/files/e0a2c962fb6d8f8b811953dd70c7884a/81889827370.pdfIn PDF document text
  • https://absolut-fit-and-dance.de/wp-content/plugins/super-forms/uploads/php/files/56ko0m8776c78agvu8qb6si97q/fuzinubidexilalo.pdfIn PDF document text
  • https://namastehealth.in/wp-content/plugins/super-forms/uploads/php/files/pdilog8vbh8t4qnse4j66cfl61/kerobok.pdfIn PDF document text
  • http://ksnjl.com/userfiles/files/tazevukeguxadurumedoxexus.pdfIn PDF document text
  • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
  • http://purl.org/dc/elements/1.1/In PDF document text
  • http://ns.adobe.com/pdf/1.3/In PDF document text
  • http://ns.adobe.com/xap/1.0/In PDF document text
  • http://ns.adobe.com/xap/1.0/mm/In PDF document text
  • http://ns.adobe.com/xap/1.0/rights/In PDF document text
  • http://dejavu.sourceforge.netIn PDF document text
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

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