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.
• Fake invoice / payment lure low SE_INVOICE_LURE
  Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
• 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://chcial.ru/uplcv?utm_term=how+to+reply+kindly+confirm+receipt+of+this+email PDF link annotation

  • http://bamt.be/wp-content/plugins/formcraft/file-upload/server/content/files/160763d0ac7a7f---51759436534.pdfIn PDF document text
  • https://www.bakirkoytemsilcisi.com/wp-content/plugins/formcraft/file-upload/server/content/files/160853e29850ff---86273554654.pdfIn PDF document text
  • https://thailonghoang.vn/upload/files/57140152852.pdfIn PDF document text
  • http://dagmar-e.de/userfiles/file/82076088567.pdfIn PDF document text
  • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16095d150c7372---19808781153.pdfIn PDF document text
  • http://chinalabware.net/d/files/60319432177.pdfIn PDF document text
  • http://chroscina.com/userfiles/file/90480494239.pdfIn PDF document text
  • https://fitnessrev.net/wp-content/plugins/super-forms/uploads/php/files/d1ofef5ojiugijtk9bse0g2vtt/baxezafazur.pdfIn PDF document text
  • https://jamurgoreng.net/contents//files/91231767531.pdfIn PDF document text
  • http://lcxcable.com/fckeditor/file/lepaledipinokififolad.pdfIn PDF document text
  • http://www.minaakshimajumdar.com/fckimages/file/91563164457.pdfIn PDF document text
  • http://www.thediethub.in/wp-content/plugins/formcraft/file-upload/server/content/files/161095e9dd1aee---duxejonuwedutikus.pdfIn PDF document text
  • https://udachi.co.th/wp-content/plugins/super-forms/uploads/php/files/e3vqgj3c92h1km2pqmoc3198d2/bafune.pdfIn PDF document text
  • https://voicelux.ru/wp-content/plugins/super-forms/uploads/php/files/9d2aab8441b46f60fa88731039cb4b34/96027444831.pdfIn PDF document text
  • https://argumentua.com/i/file/zijanev.pdfIn PDF document text
  • http://stylowa-pss.pl/userfiles/file/ziriwuvur.pdfIn PDF document text
  • https://rubenoferro.com/userfiles/file/4392234914.pdfIn PDF document text
  • https://ngaa.org.au/application/third_party/ckfinder/userfiles/files/33886876179.pdfIn PDF document text
  • http://1hozain.ru/files/userfiles/files/72212494884.pdfIn PDF document text
  • http://www.asejnrtigers.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16075bf69adb12---36256236651.pdfIn PDF document text
  • http://skrabl.pl/www/rpbd/fck/file/18002512959.pdfIn PDF document text
  • https://flylights.pl/wp-content/plugins/super-forms/uploads/php/files/8tb0c9v5ioi85igh2cse7aoabr/sebexapupipowirunore.pdfIn PDF document text
  • http://vasilii-orlov.fun/wp-content/plugins/super-forms/uploads/php/files/774049d45a688b2a016181fc76f30ee5/fobelejipodi.pdfIn PDF document text
  • https://eyestech.in/wp-content/plugins/super-forms/uploads/php/files/puelmof9u449gevo0qf72oa585/jirewinubasumitoliled.pdfIn PDF document text
  • http://allasclub.com/campannas/file/11668825979.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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