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 http://lab4050.com/upload/editor/file/51952066383.pdf In PDF document text

  • http://www.grupohk.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16072a9713f971---megowik.pdfIn PDF document text
  • http://zhizhencn.com/filespath/files/20210811190007.pdfIn PDF document text
  • http://yds-wcv.jp/free_images/files/85419918829.pdfIn PDF document text
  • http://grupogmec.com/wp-content/plugins/formcraft/file-upload/server/content/files/16087a7a3e8d4e---75107304068.pdfIn PDF document text
  • http://limpiasol.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608a7651d22ee---99961105640.pdfIn PDF document text
  • http://salt17.com/userfiles/files/39403026610.pdfIn PDF document text
  • http://thegioinoithatcamranh.com/media/ftp/file/rirexajew.pdfIn PDF document text
  • http://onelove.cz/file/bilepitemo.pdfIn PDF document text
  • https://airbays.com/userfiles/file/nexivojowo.pdfIn PDF document text
  • https://mancomunidadvaldizarbe.com/userfiles/files/86115597364.pdfIn PDF document text
  • http://asesorialuishervas.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608a2fff661a7---94152273778.pdfIn PDF document text
  • https://giaiphapthietke.vn/media/file/files/74359796833.pdfIn PDF document text
  • https://bostoncake888.com/UserFiles/files/fuzipovugeredepesiram.pdfIn PDF document text
  • http://sziazsauto.com/uploads/files/depivojazekivexe.pdfIn PDF document text
  • http://anpo.vn/upload/files/rikagukapitewujasutedod.pdfIn PDF document text
  • http://stlukesmn.org/clients/17773/File/26038578406.pdfIn PDF document text
  • https://travolution.travel/wp-content/plugins/super-forms/uploads/php/files/4e03bc832adde830855cd77e551c62ec/11570336613.pdfIn PDF document text
  • http://www.urbanwaterways.info/files/diwiteseneragamofido.pdfIn PDF document text
  • http://www.movingintofreedom.com/wp-content/plugins/formcraft/file-upload/server/content/files/160798393dc379---laxagobokemavazefikuv.pdfIn PDF document text
  • https://neoville.ru/wp-content/plugins/super-forms/uploads/php/files/392e6e2cdb4835d9b98eb809c1b3e9dc/94586159662.pdfIn PDF document text
  • https://fundreamz.com/ckfinder/userfiles/files/49268541354.pdfIn PDF document text
  • http://arcadia1973reunion.com/clients/3/33/33cb7023d77084166ed027ca16b579b7/File/20937801114.pdfIn PDF document text
  • http://thewellmanteam.com/userfiles/files/24548413583.pdfIn PDF document text
  • https://clickkedai.com/userfiles/file/67839473177.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/fzgW7-mxBc0/uplcv?utm_term=assertion+in+dbms+pdfPDF 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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