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=grade+8+english+language+arts+worksheets PDF link annotation

  • http://torremaggiore.sitmap.it/files/files/sezilisowupukateju.pdfIn PDF document text
  • http://pitin-akutsu.com/js/upload/files/bonewonivoboduxisep.pdfIn PDF document text
  • http://amandamaitland.com/images/file/71604500510.pdfIn PDF document text
  • http://www.kissdocs.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16114dcb106291---videbuzozojefozezutidako.pdfIn PDF document text
  • https://vizzzio.ru/wp-content/plugins/super-forms/uploads/php/files/a25a549fcf96e2157fde55cb0572d3b9/vefovimivamafufaj.pdfIn PDF document text
  • http://www.thediethub.in/wp-content/plugins/formcraft/file-upload/server/content/files/1607a38869d909---96147740494.pdfIn PDF document text
  • http://intechsol.kz/wp-content/plugins/formcraft/file-upload/server/content/files/160f2194c639d4---lizituluxitoxulanavu.pdfIn PDF document text
  • https://plasy.com/uploads/file/59698803077.pdfIn PDF document text
  • https://cengilli.com/icerik_images/file/15340550882.pdfIn PDF document text
  • https://www.fifatravels.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f5cbc7fbbb---67559449262.pdfIn PDF document text
  • http://posicert.com/upload_fck/file/2021-8-2/20210802123515111997.pdfIn PDF document text
  • http://cerescommoditiesltd.com/Images_upload/files/bodevilujezarakolole.pdfIn PDF document text
  • http://www.barankayalar.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160bed2576fdd4---3404004488.pdfIn PDF document text
  • http://smartmedicaleg.com/wp-content/plugins/formcraft/file-upload/server/content/files/16131757618469---vibide.pdfIn PDF document text
  • http://mtcongnghiepxanh.com/upload/fckimagesfile/307066383.pdfIn PDF document text
  • http://kyanite.tv/userfiles/file/76686567525.pdfIn PDF document text
  • https://reifenscho.de/wp-content/plugins/formcraft/file-upload/server/content/files/1606c7bbed8e73---34358745268.pdfIn PDF document text
  • http://ibb-online.ru/f/file/32317690164.pdfIn PDF document text
  • https://arch.ua/ckfinder/userfiles/files/41463886367.pdfIn PDF document text
  • http://birkhoffhi.com/userfiles/files/soguli.pdfIn PDF document text
  • http://czapla-dachy.pl/public/images/fck/file/gifaluponirim.pdfIn PDF document text
  • http://www.medical-psychology.gr/wp-content/plugins/formcraft/file-upload/server/content/files/1607265277c5e4---66098686138.pdfIn PDF document text
  • http://victorylimo1.com/wp-content/plugins/formcraft/file-upload/server/content/files/160afcc4ab8855---36991061556.pdfIn PDF document text
  • https://www.grandiosa.is/wp-content/plugins/super-forms/uploads/php/files/q82a9gsorma8bkbvq598hqvp72/45119158947.pdfIn PDF document text
  • http://angelcabrera.com/FCKfiles/file/simes.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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