Malicious PDF — malware analysis report

Heuristics 8

• 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.
• QR-code redirect lure medium SE_QR_LURE
  Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
• 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=download+messenger+text+and+video+call+for+free PDF link annotation

  • http://bekkercoon.ru/ckfinder/userfiles/files/gipitapobipakugoloz.pdfIn PDF document text
  • http://technoauto.jp/js/upload/files/nevopu.pdfIn PDF document text
  • http://lawfirm.vn/MINH/user_files/file/jukuraxopepojikeme.pdfIn PDF document text
  • http://global-poseg.com/wp-content/plugins/formcraft/file-upload/server/content/files/16138529d97427---winixesesapuwitapinar.pdfIn PDF document text
  • https://broadstripe.com/wp-content/plugins/super-forms/uploads/php/files/41a43e09c18f840ee67b8f87faf74f7a/25525500306.pdfIn PDF document text
  • https://tannhatviet.vn/upload/files/77242229242.pdfIn PDF document text
  • https://vickers-electronics.co.uk/wp-content/plugins/super-forms/uploads/php/files/73ec2469fa043e39d919136a66dda157/57066586561.pdfIn PDF document text
  • http://vers-ma.de/userfiles/file/vetesedobodejetomaxuz.pdfIn PDF document text
  • http://zuche0551.com/upload/file/xujuvo.pdfIn PDF document text
  • https://raovat72.vn/uploads/news_file/20429678284.pdfIn PDF document text
  • https://laxmigrouppune.com/wp-content/plugins/super-forms/uploads/php/files/8f02bd0c7bd6b3eae88722ac10154782/jowoxarixademugi.pdfIn PDF document text
  • http://dancephoto.ru/userfiles/files/kiraseresoremof.pdfIn PDF document text
  • http://webbyshoe.com/fckeditor/userfiles/file/busimojisezozemetigutigar.pdfIn PDF document text
  • https://accounting789.com/ThImg/file/64380642107.pdfIn PDF document text
  • http://napiarsaigh.com/images/sawimuzevibaxumasudus.pdfIn PDF document text
  • http://findingthegrey.com/userfiles/file/vetoripovuwonenijawumiz.pdfIn PDF document text
  • http://medwin.kr/userData/board/file/dokanigujemawapaz.pdfIn PDF document text
  • http://surveycook.com/upload/tmp/202109/file/zawuvobujoguj.pdfIn PDF document text
  • https://dhrc.in/userfiles/file/gezemowoxakowamebubopeb.pdfIn PDF document text
  • http://www.whirlpool-beachcomber.at/wp-content/plugins/formcraft/file-upload/server/content/files/161393549db273---57789825481.pdfIn PDF document text
  • http://xn----7sbndn5at.xn--p1ai/uploads/files/xalexiwapojofogabezinov.pdfIn PDF document text
  • http://globalroomplus.com/bot/ckfinder/uf/files/20292600323.pdfIn PDF document text
  • http://dawahcity.com/userfiles/file/tutijonasuwux.pdfIn PDF document text
  • https://kindeeyudee.com/ck_files/files/98571981335.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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