Malicious PDF — malware analysis report

Heuristics 6

• 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.
• 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://cructi.ru/uplcv?utm_term=string+theory+in+a+nutshell+pdf+download PDF link annotation

  • http://tvkinter.com/file_media/file_image/file/topuridewetovututogo.pdfIn PDF document text
  • https://aannemingsbedrijfbarthulsbosch.nl/userfiles/file/nirawimav.pdfIn PDF document text
  • http://abaj.cz/UserFiles/File/kajimakawob.pdfIn PDF document text
  • https://regeneracion-capilar.com/wp-content/plugins/super-forms/uploads/php/files/739861f3d07a1ac7077aebeae486dffb/lowabulifidevovoxijuk.pdfIn PDF document text
  • https://arvikabc.com/images/uploadedimages/file/95659965529.pdfIn PDF document text
  • https://thebottombillion.org/business_school/uploads/file/6068503713.pdfIn PDF document text
  • https://otartufo.com/ckfinder/tartufofiles/files/gulusuvuvilafabapupezol.pdfIn PDF document text
  • http://vasilii-orlov.fun/wp-content/plugins/super-forms/uploads/php/files/24ef367599da30b42ff1e1df399ded19/17736882177.pdfIn PDF document text
  • https://playgametoday.ru/wp-content/plugins/super-forms/uploads/php/files/3de4be7cfda9ae0a275308a5ed8fb65d/92762120232.pdfIn PDF document text
  • https://tecsal.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1606fe2240b19a---mebedudomuwezam.pdfIn PDF document text
  • http://pvvc.cz/files/90423596049.pdfIn PDF document text
  • https://irrisyst.eu/files/file/juvetuwujodotumifajedun.pdfIn PDF document text
  • http://www.tamtrebinhminh.com/public/files/47002336696.pdfIn PDF document text
  • http://accomplishtheimpossible.com/userfiles_ati/file/vulunegededavavajusuv.pdfIn PDF document text
  • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609b88594dae7---sisipijodafiwixowe.pdfIn PDF document text
  • http://hillandbrownfamily.com/clients/76964/File/1275911241.pdfIn PDF document text
  • http://emons-verlag.net/testarea/cwsCMSlight/media/files/72559611547.pdfIn PDF document text
  • http://reiki-roots.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16087da6c3fd35---sabikapolub.pdfIn PDF document text
  • http://qhchemicalsfeed.com/upload/files/6242954106.pdfIn PDF document text
  • http://c2mag.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609b549932a4b---95988868436.pdfIn PDF document text
  • http://winso.tw/userfiles/file/30040277786.pdfIn PDF document text
  • http://mas.vacations/wp-content/plugins/formcraft/file-upload/server/content/files/160bfe4e8b2b98---bimepegibemunilonaxiwokaw.pdfIn PDF document text
  • https://villatoscana-pi.it/userfiles/file/gitutudedapof.pdfIn PDF document text
  • http://www.a-fairys-choice.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606cc7f85acc8---rolijemagopugizatabonaw.pdfIn PDF document text
  • http://twilaw.com/files/files/kexobiwerupef.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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