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
• 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.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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 http://www.unidacardoso.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1606f0a4c09637---41747280692.pdf In PDF document text

  • https://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/16092e101ccd01---7702839487.pdfIn PDF document text
  • https://cwlighting.com/wp-content/plugins/super-forms/uploads/php/files/504b44766d552aa89cf417c3b753860c/78198091924.pdfIn PDF document text
  • https://hansenlight.com/UploadFile/files/7764059330.pdfIn PDF document text
  • https://medtek.vn/storage/file/ruxigezuwevenog.pdfIn PDF document text
  • http://www.hmh.sk/files/articles/file/33287789285.pdfIn PDF document text
  • http://airsoft1.ro/files/file/49186899720.pdfIn PDF document text
  • http://www.azurwelcomeservices.com/userfiles/file/33060182131.pdfIn PDF document text
  • https://betonwerkendejonge.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160a191c1912bc---83404655052.pdfIn PDF document text
  • http://lscapital.it/images/file/73770113996.pdfIn PDF document text
  • https://asiaviews.org/wp-content/plugins/super-forms/uploads/php/files/c7d7p0jj30q0b8kgqqie495pd1/14956222291.pdfIn PDF document text
  • http://yer-krasnodar.ru/ckfinder/userfiles/files/35421101386.pdfIn PDF document text
  • http://bienbao.net/uploads/files/57202277249.pdfIn PDF document text
  • https://uppersanduskyrotary.com/cms/files/File/nipewo.pdfIn PDF document text
  • https://renault-service.com/userfiles/saxaruxemuzi.pdfIn PDF document text
  • http://kpdb.org/userfiles/files/84803504932.pdfIn PDF document text
  • http://www.saraviation.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612e60e9165c1---lakoliwepeboxite.pdfIn PDF document text
  • https://refour.eu/wp-content/plugins/super-forms/uploads/php/files/9b81a451f7e786ee074b189bcd0c558f/luxinujijebadosus.pdfIn PDF document text
  • https://tdfstore.it/file/megezukujubewijusadiwami.pdfIn PDF document text
  • http://files.ibiza-ferien.de/file/majufimudosejidovevux.pdfIn PDF document text
  • https://neoville.ru/wp-content/plugins/super-forms/uploads/php/files/7b7afebf6a1c8a12849d16b4f7485007/23541504444.pdfIn PDF document text
  • https://ailani.org/wp-content/plugins/super-forms/uploads/php/files/a2ff91b2fbab34266f1e5d090c5c7ae5/rurakikadefamugizomibum.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/PmAiG5ZyT-k/uplcv?utm_term=8th+standard+5+in+1+guide+english+mediumPDF link annotation
  • 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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