Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• 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=apps+are+not+downloading+in+play+store PDF link annotation

  • http://apex-architect.ru/images/file/gosulu.pdfIn PDF document text
  • http://peaceinsrilanka.lk/ckfinder/userfiles/files/69763382990.pdfIn PDF document text
  • http://www.1atlanticfunding.com/wp-content/plugins/formcraft/file-upload/server/content/files/161355bd65af44---9880765753.pdfIn PDF document text
  • http://studiolegaletrotta.eu/userfiles/files/57016137393.pdfIn PDF document text
  • http://www.abcklima.hu/data/editorfile/wemutefu.pdfIn PDF document text
  • http://caratow.nl/userfiles/file/pikasep.pdfIn PDF document text
  • https://webdatedepot.com/userfiles/file/32673492442.pdfIn PDF document text
  • http://sun-marche.com/app/webroot/js/ckfinder/userfiles/files/fakefubepanikelewakirum.pdfIn PDF document text
  • https://www.highettmetal.com.au/application/third_party/ckfinder/userfiles/files/galudiwem.pdfIn PDF document text
  • http://www.enfersalus.com/ckfinder/userfiles/files/rexofufige.pdfIn PDF document text
  • https://ermolino.mebel18.com/uploads/files/duzazaroriwawisewume.pdfIn PDF document text
  • https://hoovermaids.com/wp-content/plugins/super-forms/uploads/php/files/2ee19aa89754b862c79df23a5be52ddb/54452848544.pdfIn PDF document text
  • https://netiko.fr/img/Data/file/26081158073.pdfIn PDF document text
  • http://tvoirostov.ru/ckfinder/userfiles/files/95602245233.pdfIn PDF document text
  • http://yenidenyuzlendirme.com/ckfinder/userfiles/files/6316870419.pdfIn PDF document text
  • http://bachtungcompany.com/upload/files/77449978596.pdfIn PDF document text
  • http://uniondeautoescuelas.com/wp-content/plugins/formcraft/file-upload/server/content/files/161315173934df---84138505581.pdfIn PDF document text
  • https://thriveelearning.com/wp-content/plugins/super-forms/uploads/php/files/70d23fd34ac95b5c5df39132ffa28291/56024296381.pdfIn PDF document text
  • http://theexplorerthai.com/userfiles/files/50286456275.pdfIn PDF document text
  • http://radyoislam.com/resimler/files/63621420932.pdfIn PDF document text
  • http://makaifruits.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614ef81fbb862---24689846956.pdfIn PDF document text
  • http://intproplaw.com/admin/uploads/file/nafuwunape.pdfIn PDF document text
  • http://dichvubaove.online/upload/files/96312557999.pdfIn PDF document text
  • https://hyosung-gulf.com/uploads/file/4906013469.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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