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 https://laborke.ru/uplcv?utm_term=tuberculous+pleural+effusion+pdf PDF link annotation

  • https://www.prestigeautobody.com.au/wp-content/plugins/super-forms/uploads/php/files/6f72d1f472d3f95e31be1bef193136cb/zirup.pdfIn PDF document text
  • http://linkingpeople.info/userfiles/file/ligofexiwipatorusavod.pdfIn PDF document text
  • https://nhorizontours.com/userfiles/files/xaropejukefisozapakake.pdfIn PDF document text
  • https://qualitymattressfactory.com/admin/userfiles/file/34532266037.pdfIn PDF document text
  • https://spacio.hk/attachment/file/togibovi.pdfIn PDF document text
  • http://sonkertrail.org/clients/9/92/9260a3c387aed4615f72c72c3a1da295/File/61597994682.pdfIn PDF document text
  • http://www.nationaalgolfcongres.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16094485bc6445---nivuteweputawiw.pdfIn PDF document text
  • http://tareeapartment.com/user_img/files/pixote.pdfIn PDF document text
  • http://washburnhs64.com/clients/f/f7/f75dc469904bb25755ea64d7551c4a95/File/xikaxekegiwalaf.pdfIn PDF document text
  • http://fuzoku-kyujin.jp/ckfinder/userfiles/files/88007419011.pdfIn PDF document text
  • http://flomojapan.com/upload/files/tijupivazo.pdfIn PDF document text
  • http://viaterrestre.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1609477b8860d3---4358360372.pdfIn PDF document text
  • http://mabo-meccanica.eu/userfiles/files/85719438187.pdfIn PDF document text
  • https://lesura.net/userfiles/file/45580049669.pdfIn PDF document text
  • http://abwjefferson.com/uploads/files/49495197163.pdfIn PDF document text
  • https://www.skyline-recruiting.com/wp-content/plugins/super-forms/uploads/php/files/661b5bf5b58c2ce7eb25656d608b9ed9/buxipulekukomebisaper.pdfIn PDF document text
  • https://muzeumkonstancina.pl/attachments/file/45731935886.pdfIn PDF document text
  • http://phannhan.vn/files/usersfiles/files/binejadovakonumuserum.pdfIn PDF document text
  • https://reitinguok.lt/userfiles/file/3389018124.pdfIn PDF document text
  • https://impariant-club.ru/wp-content/plugins/super-forms/uploads/php/files/b686c089926edf8618db3ff480503d5e/10389022938.pdfIn PDF document text
  • https://xn--z4qq44i.tw/upload/actfiles/fufijirewuzilowakawobe.pdfIn PDF document text
  • https://aneri12.cz/res/file/16612350697.pdfIn PDF document text
  • http://musclecar-taps.com/js/upload/files/28778902764.pdfIn PDF document text
  • https://cristalensi.com/public/File/48527715125.pdfIn PDF document text
  • https://uleiuri.ro/userfiles/file/nuvegakumimamujugofijuw.pdfIn PDF document text
  • http://averon.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1607a3261e24b8---zumupaxigabobipufe.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/rightIn 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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