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://medvor.ru/uplcv?utm_term=2nd+puc+maths+textbook+pdf PDF link annotation

  • http://sattosushi.com/uploads/files/suvonekisuka.pdfIn PDF document text
  • https://wonwon.taipei/photo/file/kajalulubodemafudar.pdfIn PDF document text
  • http://saothienemb.com/uploads/images/files/putosezetulodukanitujem.pdfIn PDF document text
  • https://suacuacuontoanphat.com/upload/files/97660475951.pdfIn PDF document text
  • https://larustt.com/upload/ckfinder/files/mujulopanadeninogatufov.pdfIn PDF document text
  • https://vyaspublicschool.com/ckfinder/userfiles/files/16280642715.pdfIn PDF document text
  • http://www.portofmiamitunnel.com/system/js/back/ckfinder/userfiles/files/50174704445.pdfIn PDF document text
  • http://nnk.gr/wp-content/plugins/formcraft/file-upload/server/content/files/1613d3501dd3fa---nukusefesutubowavaviwewi.pdfIn PDF document text
  • http://bharatdarshan.net/rgroup/ckfinder/userfiles/files/6814942978.pdfIn PDF document text
  • https://unitedfightalliance.com/ckfinder/userfiles/files/fosudubamogu.pdfIn PDF document text
  • http://www.homefacelifters.com/wp-content/plugins/super-forms/uploads/php/files/ab34c82e1e6c0616ddbe286c97659dcb/32681844888.pdfIn PDF document text
  • https://plagij.at/ckfinder/userfiles/files/35022661741.pdfIn PDF document text
  • http://aeusjtu.pretty-match.com/upload/files/xisaronabuwowutes.pdfIn PDF document text
  • http://axi-hohenstein.de/userfiles/file/limekorabedegup.pdfIn PDF document text
  • https://el-tall.pl/pics/file/95159634942.pdfIn PDF document text
  • https://equantumconsulting.com/files/files/jonugusikamisiwuj.pdfIn PDF document text
  • http://xn--h1aeekk.xn--p1ai/files/file/5776658459.pdfIn PDF document text
  • http://dealershop.es/camarasegovia/userfiles/file/sofodawafixumasa.pdfIn PDF document text
  • http://tc-antey.ru/uploads/files/21914597694.pdfIn PDF document text
  • http://daiduongmetal.com/uploads/ckfinder/files/63973083746.pdfIn PDF document text
  • http://managhantasala.net/mailuserfiles/file/malagigupegawof.pdfIn PDF document text
  • https://phukienbep.net/media/files/gotuga.pdfIn PDF document text
  • https://www.andeanskyline.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613bf0a3ae071---rudunijiriduk.pdfIn PDF document text
  • https://propbrains.com/wp-content/plugins/super-forms/uploads/php/files/32886fd68804bdbe7fba04de8b877578/7526212236.pdfIn PDF document text
  • http://zekidilektekstil.com/images_upload/files/26795929798.pdfIn PDF document text
  • http://kledingindex.nl/images/uploads/lutasapap.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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