Malicious PDF — malware analysis report

Heuristics 6

• 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.
• 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://irlanc.ru/uplcv?utm_term=homographs+worksheets+for+grade+6+with+answers PDF link annotation

  • http://shreyaghoshal.com/konadnew/userfiles/file/37212865311.pdfIn PDF document text
  • https://www.hungryalex.com/wp-content/plugins/super-forms/uploads/php/files/1777f62e34b0bf30d67bf133885ebf46/73997924376.pdfIn PDF document text
  • http://biancoacolori.it/userfiles/files/66424178479.pdfIn PDF document text
  • http://mixmarketing.vn/upload/fck/file/54082980629.pdfIn PDF document text
  • http://queuemanagementsystems.com/wp-content/plugins/formcraft/file-upload/server/content/files/16095dc5394323---8050742894.pdfIn PDF document text
  • http://sh8ke.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a71507505a9---87095399496.pdfIn PDF document text
  • http://sghscsjamarai.org/guruhargobind/userfiles/file/47016167850.pdfIn PDF document text
  • http://basyapiemlak.com/yukleme_klasoru/userfiles/file/59629599017.pdfIn PDF document text
  • http://machin.kr/userData/board/file/gozakotakuno.pdfIn PDF document text
  • http://smartcevent.com/clients/871459/File/jumame.pdfIn PDF document text
  • http://cc-loges.com/uploads/file/bakonilunixidezi.pdfIn PDF document text
  • https://rotherelectric.com/files/53295487610.pdfIn PDF document text
  • http://gemculture.com/userfiles/file/53936777676.pdfIn PDF document text
  • http://bayzones.com/fckeditor/editor/filemanager/connectors/php/userfiles/file/22221850355.pdfIn PDF document text
  • http://arcadia1973reunion.com/clients/3/33/33cb7023d77084166ed027ca16b579b7/File/21973669197.pdfIn PDF document text
  • http://minhphucvietnam.com/uploads/userfiles/file/78178336228.pdfIn PDF document text
  • https://www.lumisolar.pe/wp-content/plugins/formcraft/file-upload/server/content/files/160c2e7f11ef81---kogubunewamaxebozavemu.pdfIn PDF document text
  • https://malimbe.africa/wp-content/plugins/super-forms/uploads/php/files/bf04e320a407c739a701afd0cf5a47a6/tirebazama.pdfIn PDF document text
  • https://www.heainc.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608e3a5374fd2---20834251517.pdfIn PDF document text
  • http://asesoriagarpe.com/wp-content/plugins/formcraft/file-upload/server/content/files/160733961dd63c---mozeluxogad.pdfIn PDF document text
  • http://thedewakohchang.com/image/upload/File/6566672949.pdfIn PDF document text
  • https://lightspec.com/wp-content/plugins/super-forms/uploads/php/files/bfa8f4e732836806d7fcafeb037fc31f/71645966447.pdfIn PDF document text
  • http://erkerlaender.de/wp-content/plugins/formcraft/file-upload/server/content/files/1608771a5a6852---6095514967.pdfIn PDF document text
  • http://www.canadavisaservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b5adf3b708d---45737031788.pdfIn PDF document text
  • http://contua.org/userfiles/file/wozasaveza.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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