Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
• Clickable URI points to raw IP address medium PDF_URI_IP_LITERAL
  PDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
• 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://wastran.ru/uplcv?utm_term=linear+algebra+for+machine+learning+book+pdf PDF link annotation

  • http://pphjako.pl/userfiles/file/mujikozoxitulidixaxik.pdfIn PDF document text
  • http://inlikeflintlogistics.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613c4b8d0a23b---pirotajoti.pdfIn PDF document text
  • http://partner-support.net/user_data/userfiles/files/gusojazot.pdfIn PDF document text
  • http://79.170.40.182/boothtastic.com/wp-content/plugins/formcraft/file-upload/server/content/files/161304b781720d---penuxokirivunarixejinepo.pdfPDF link annotation
  • http://sanraimundo.cl/dyn/uploads/file/lapajojiru.pdfIn PDF document text
  • https://digireg.gr/upload/tovesepimu.pdfIn PDF document text
  • http://iweldbot.com/ckfinder/pho/files/rirus.pdfIn PDF document text
  • http://turystyka.powiatlubartowski.pl/admin/ckfinder/userfiles/files/85668704913.pdfIn PDF document text
  • https://www.indoorclub-informa.com/boletines/img/file/pitaxetuk.pdfIn PDF document text
  • https://alshaabcoop.com/userfiles/file/genidipov.pdfIn PDF document text
  • https://produktybhp.pl/pliki_user/File/zetujirisiw.pdfIn PDF document text
  • http://www.valathors.com/ckfinder/userfiles/files/fomixolutokodumiwugekib.pdfIn PDF document text
  • https://sergiomauri.com/images/file/37370698727.pdfIn PDF document text
  • https://mkontakt.pl/dat/file/fumadowefolimevilaza.pdfIn PDF document text
  • https://sg-design.top/wp-content/plugins/super-forms/uploads/php/files/8dd65aa96c676d4639ffe835b92ae40e/89633673453.pdfIn PDF document text
  • http://wahluenfty.com/userfiles/5844480822.pdfIn PDF document text
  • http://korytnica.net/data/files/tezafewuvowipu.pdfIn PDF document text
  • https://it-remarketing.pl/app/webroot/media/files/zuwanetefodekukobivuz.pdfIn PDF document text
  • https://stewsites.com/wp-content/plugins/super-forms/uploads/php/files/b3a2faa937abdfa62d63576a154a2121/1966216487.pdfIn PDF document text
  • https://alternatifhirdavat.com/upload/ckfinder/files/lepivuv.pdfIn PDF document text
  • http://vidol.nl/userfiles/file/fowixuworakemujit.pdfIn PDF document text
  • http://furniture83.com/upload/files/buzapitudonafo.pdfIn PDF document text
  • https://everestart.com/images/stories/file/pojajitifutilozakuxob.pdfIn PDF document text
  • http://az4group.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1613e2efb26215---78615771544.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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