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://infrive.ru/uplcv?utm_term=tnusrb+result+2018+in+pdf PDF link annotation

  • https://mimpisiluman.com/contents//files/60448302551.pdfIn PDF document text
  • http://www.unidacardoso.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1606cb9acbc386---61091814526.pdfIn PDF document text
  • http://bdsps.org/slbdavbatala/userfiles/file/94960996462.pdfIn PDF document text
  • http://jenan.com/ckfinder/userfiles/files/80783800109.pdfIn PDF document text
  • https://www.isgs.org/wp-content/plugins/super-forms/uploads/php/files/fc0ada5f1211ebe761df00012157610f/dedasinoxu.pdfIn PDF document text
  • https://mediaget.ru/userfiles/files/28066399710.pdfIn PDF document text
  • https://msr-hudsonproperties.com/wp-content/plugins/super-forms/uploads/php/files/81291d2ae7e8825b476eee474660678d/27026537482.pdfIn PDF document text
  • http://yuemeism.com/uploadfiles/files/15585513072.pdfIn PDF document text
  • https://almoheetmanpower.com/public_html/userfiles/file/62239626716.pdfIn PDF document text
  • http://formpart.com/upload/ckfinder/files/72116936661.pdfIn PDF document text
  • https://polresseluma.com/assets/ckfinder/core/connector/php/uploads/files/46806236723.pdfIn PDF document text
  • https://www.napariverinn.com/wp-content/plugins/super-forms/uploads/php/files/327a0052848367900f32848f0629189d/13357893118.pdfIn PDF document text
  • http://eldorautomaticgates.com/UserFiles/file/34903169455.pdfIn PDF document text
  • http://hnc2.com/userfiles/file/89416911436.pdfIn PDF document text
  • https://okazionche.com/files/fekovuzuwofikew.pdfIn PDF document text
  • https://greenvalleykerala.com/ckfinder/userfiles/files/vorarij.pdfIn PDF document text
  • https://win-win-keiba.site/js/ckfinder/userfiles/files/74409090103.pdfIn PDF document text
  • https://shared401k.com/wp-content/plugins/super-forms/uploads/php/files/7cd15dddc386e954f21e59d130c773dd/vimoposifebibona.pdfIn PDF document text
  • https://pt2-turbo-j3t.com/contents/files/gikesokije.pdfIn PDF document text
  • http://irmascaritasdejesus.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/160b13783e8fba---20333243670.pdfIn PDF document text
  • https://intelean.com/wp-content/plugins/formcraft/file-upload/server/content/files/16123a28d9735b---18696880791.pdfIn PDF document text
  • https://kermoulin.com/userfiles/file/tinos.pdfIn PDF document text
  • https://hchoanglong.vn/userfiles/file/fujumedakojozunad.pdfIn PDF document text
  • http://cricalliance.com/wp-content/plugins/formcraft/file-upload/server/content/files/160985877dc94a---79090283467.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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