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://synerhu.ru/uplcv?utm_term=speak+out+intermediate+student%27s+book+pdf+free+download PDF link annotation

  • https://aljazeerahpetroleum.ae/userfiles/files/bafunuzoropatoxutodate.pdfIn PDF document text
  • http://www.trisad.kz/ckfinder/userfiles/files/73689607959.pdfIn PDF document text
  • https://erdemlerkoleji.com/resimler/files/29749494148.pdfIn PDF document text
  • http://villalapinetafavignana.it/userfiles/files/gorukole.pdfIn PDF document text
  • http://cistenivytahu.cz/upload/file/36889761754.pdfIn PDF document text
  • http://phongkhamthienhoa.org/images/files/13327300862.pdfIn PDF document text
  • https://3drm.bg/uploads/pictures/files/19793422700.pdfIn PDF document text
  • http://europeanprofservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613589067b0fb---tiwaninenabu.pdfIn PDF document text
  • http://taichielite.com/louis/taichi/ckfinder/userfiles/files/15228381674.pdfIn PDF document text
  • https://vhcvietnam.vn/ckeditor/images/files/wuveliziligavebomonijeze.pdfIn PDF document text
  • https://altsovmun.ru/userfiles/file/47700586743.pdfIn PDF document text
  • https://www.golaw.net/wp-content/plugins/formcraft/file-upload/server/content/files/1613427228e739---nemoxama.pdfIn PDF document text
  • https://impulsa.mantareys.net/uploads/plantillas/files/xevorozupaxekefuwipex.pdfIn PDF document text
  • http://eaupureinternational.com/userfiles/file/39590018491.pdfIn PDF document text
  • https://adamant54.ru/userfiles/files/91978814349.pdfIn PDF document text
  • http://beming.com/ressource/site-image/files/gojira.pdfIn PDF document text
  • http://dnt-mayak.ru/content/File/napamabexen.pdfIn PDF document text
  • http://gjbuyerbroker.com/userfiles/file/turuvosules.pdfIn PDF document text
  • http://kxnjl.com/userfiles/files/tipigozugizolibasexevaj.pdfIn PDF document text
  • http://alompar.hu/uploads/content_files/files/60130764314.pdfIn PDF document text
  • http://dobrasekacka.cz/userfiles/file/sosozanabakufakegoniromun.pdfIn PDF document text
  • http://german-ex.com/images/blog/file/39640928174.pdfIn PDF document text
  • http://envisystem.com/upload/userfile/files/vagidufetimitotipatozasug.pdfIn PDF document text
  • https://drivingschoolofnorthtexas.com/wp-content/plugins/formcraft/file-upload/server/content/files/161328d9431408---76359943082.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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