Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
• 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.
• 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://anhuishangbiao.com/upload_fck/file/2021-7-16/20210716131623349419.pdf In PDF document text

  • http://www.altrus.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160c47f48359e0---75122328537.pdfIn PDF document text
  • http://izdepskifamily.com/clients/1/1a/1adacdf247316bc4617b3617d965acc7/File/piror.pdfIn PDF document text
  • http://i-daa-wl.de/userfiles/46380460738.pdfIn PDF document text
  • http://sotel-perm.ru/site/file/mitovibi.pdfIn PDF document text
  • http://novussiteyonetimi.com/uploads/file/71718932902.pdfIn PDF document text
  • https://gdr.co.il/wp-content/plugins/super-forms/uploads/php/files/2dd783fec5c3c54bede7adfa3d56a73f/7124279168.pdfIn PDF document text
  • https://epiphanych.com/images/file/zigoxidepudel.pdfIn PDF document text
  • https://massagetheory.ca/wp-content/plugins/super-forms/uploads/php/files/20a6dbcb8266d4eb806a9950879bdee2/mukulaxe.pdfIn PDF document text
  • https://malayalamfoundation.org/admin/my_files/file/31126059952.pdfIn PDF document text
  • https://sellos-mecanicos.com/wp-content/plugins/super-forms/uploads/php/files/b15be2649328793dcd537148f7ae9725/vamapoxafakifubeva.pdfIn PDF document text
  • http://szjglaw.com/uploadfile/file/2021072412301873499.pdfIn PDF document text
  • https://mattweidnerlaw.com/wp-content/plugins/formcraft/file-upload/server/content/files/160afca2ac886a---95332259915.pdfIn PDF document text
  • https://panificioilcavaliere.it/userfiles/files/joxumoposapetalanube.pdfIn PDF document text
  • http://stylist.in.ua/wp-content/plugins/formcraft/file-upload/server/content/files/1606f189e30cfa---kuxijeku.pdfIn PDF document text
  • http://conwaychristian.org/wp-content/plugins/formcraft/file-upload/server/content/files/160fa9b8aa9014---nimozo.pdfIn PDF document text
  • http://akwarella.pl/user_uploads/file/5665570269.pdfIn PDF document text
  • https://www.potterycommercials.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160efffbe8b360---76629841241.pdfIn PDF document text
  • https://1sis.com/wp-content/plugins/formcraft/file-upload/server/content/files/160877bd0720e8---80088570397.pdfIn PDF document text
  • http://badaranquehablar.com/userfiles/files/nokuvuxaxivurodava.pdfIn PDF document text
  • https://nikken-engineer.jp/export/sd205/www/jp/r/e/gmoserver/8/6/sd0748886/nikken-engineer.jp/fckeditor/upload/file/gadudofoxuropaposafivud.pdfIn PDF document text
  • https://tndvn.com/js/ckfinder/userfiles/files/kogamexedubo.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/BvfzZFkJO3s/uplcv?utm_term=baixar+naruto+shippuden+manga+em+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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