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.
• 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 https://krisoc.ru/uplcv?utm_term=manual+de+carburadores+pdf PDF link annotation

  • https://www.abrasco.org.br/ckfinder/userfiles/files/tivitedu.pdfIn PDF document text
  • https://www.agencesramos.com/ckfinder/userfiles/files/2083909096.pdfIn PDF document text
  • http://ibnuaffan.com/ckfinder/userfiles/files/jepumuwawafexesak.pdfIn PDF document text
  • http://tainanrup.longi.tw/uploadfiles/files/20210916_084411_1805.pdfIn PDF document text
  • http://www.fsnn.se/wp-content/plugins/formcraft/file-upload/server/content/files/1612eb3c4f06d4---govipez.pdfIn PDF document text
  • http://natur-pet.cz/webpagebuilder/ckfinder/userfiles/files/70761132082.pdfIn PDF document text
  • https://iieng.org/editor/ckfinder/userfiles/files/70968236107.pdfIn PDF document text
  • http://mestav.sk/uploaded_images/file/92125699765.pdfIn PDF document text
  • http://sanalights.com/admin/admin/uploadfiles/file/17161981383.pdfIn PDF document text
  • http://xinchenfast.com/upload/file/xabudazen.pdfIn PDF document text
  • http://www.wallisandemmanuel.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613d1b209b8d3---xuvomafir.pdfIn PDF document text
  • http://cathugo-catamarans.de/res/wysiwyg/file/radisog.pdfIn PDF document text
  • http://ukwoodrecycling.com/userfiles/files/43603751510.pdfIn PDF document text
  • http://swaptoys.org/ckeditor/uploads/files/97055262679.pdfIn PDF document text
  • http://guoyangmoju.com/userfiles/files/zivowujamegonej.pdfIn PDF document text
  • https://srccaa.bdbabymart.com/app/webroot/ckfinder/userfiles/files/4670828277.pdfIn PDF document text
  • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/161312ce3c2a3c---61341808729.pdfIn PDF document text
  • https://noriupapildu.lt/ckfinder/userfiles/files/17644274161.pdfIn PDF document text
  • http://megamento.com/_UploadFile/Images/file/62627294562.pdfIn PDF document text
  • https://2ruoteexpo.it/ckfinder/userfiles/files/38616149229.pdfIn PDF document text
  • https://ls-machinery.com/uploadpic/files/202109030425563182.pdfIn PDF document text
  • https://ncfouting.com/wp-content/plugins/formcraft/file-upload/server/content/files/16140c558d0f71---tudisumujopexagos.pdfIn PDF document text
  • http://videotour24.com/data/fckupload/file/gagaxixudimaderakididu.pdfIn PDF document text
  • http://caminodesantiagoenmoto.com/assets/ckfinder/core/connector/php/uploads/files/64374490265.pdfIn PDF document text
  • http://azinsaghf.com/cache/fck_files/file/semijimuruxaf.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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