Malicious PDF — malware analysis report

Heuristics 8

• 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.
• QR-code redirect lure medium SE_QR_LURE
  Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
• 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 http://nokianhakkablue.ru/ckfinder/userfiles/files/69465501466.pdf In PDF document text

  • http://www.leads-bd.org/app/webroot/js/ckfinder/userfiles/files/28135188605.pdfIn PDF document text
  • https://kaptenhoki.net/contents/files/jogarorafizuvipolowo.pdfIn PDF document text
  • http://parkergeneralcontractors.net/userfiles/file/32937679858.pdfIn PDF document text
  • http://recepti.plovdivweek.com/js/ckfinder/userfiles/files/90855870591.pdfIn PDF document text
  • https://hotelpancharatna.com/assets/userfiles/files/soriri.pdfIn PDF document text
  • http://healhumanity.foundation/userfiles/file/gesozuw.pdfIn PDF document text
  • http://htwy.com/upload/file/guboxupexufuzabin.pdfIn PDF document text
  • https://e-uchebnici.com/img/file/mupukusesubenonawalem.pdfIn PDF document text
  • http://storemisr.com/uploads/files/6983212957.pdfIn PDF document text
  • http://closehorses.com/userfiles/file/tanozixegizo.pdfIn PDF document text
  • http://giteduguedesboires.com/userfiles/file/35459732082.pdfIn PDF document text
  • http://zaiger.ru/img/file/99262745040.pdfIn PDF document text
  • http://nc-israel.ru/upload/files/78739839374.pdfIn PDF document text
  • https://spherule.org/wp-content/plugins/super-forms/uploads/php/files/ihi74kocpb7ptk3ne4his70ae2/31070542321.pdfIn PDF document text
  • https://celebicatering.com/upload/ckfinder/files/58781383033.pdfIn PDF document text
  • https://mimpidia.com/contents/files/32220093534.pdfIn PDF document text
  • http://agriturismoilnoceto.com/userfiles/files/18593925070.pdfIn PDF document text
  • http://snbedu.com/uploadfile/file///2021090521512499.pdfIn PDF document text
  • http://luckyassessoria.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16136269c89873---nakimikusutuviji.pdfIn PDF document text
  • https://abandassociates.com/ckfinder/userfiles/files/49403236922.pdfIn PDF document text
  • https://doosradashak.in/ci/userfiles/files/buxanonipilizanilujajut.pdfIn PDF document text
  • https://gaseg.com/wp-content/plugins/super-forms/uploads/php/files/p6suobaridthn5u1eq9698c9r2/17920435849.pdfIn PDF document text
  • http://grandfiltr.com/files/file/vabuzaserin.pdfIn PDF document text
  • http://vektor-bezpeki.com/userfiles/files/68191298033.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/ngfLrbzwjls/uplcv?utm_term=android+connect+to+wifi+wpsPDF 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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