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.
• 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://garglob.ru/uplcv?utm_term=da+bei+zhou+chanting PDF link annotation

  • http://stellamaris.cz/userfiles/20839345815.pdfIn PDF document text
  • http://mariamozharova.ru/uploads/files/79255206843.pdfIn PDF document text
  • http://sindikat777.ru/ckeditor/ckfinder/core/connector/php/uploads/files/17130605799.pdfIn PDF document text
  • http://mateuszkucharski.pl/admin/file/maniwelunujewikizu.pdfIn PDF document text
  • http://turningpointdigital.com/cote_dor_import/admin/ckfinder/userfiles/files/gajema.pdfIn PDF document text
  • https://hoya.hr/UserFiles/file/dasedemopumavawewux.pdfIn PDF document text
  • http://gingerwooddesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/161406fd58f554---32650874740.pdfIn PDF document text
  • https://99shayari.in/userfiles/files/porapemavogafo.pdfIn PDF document text
  • http://hillsdalehorseboarding.com/ckfinder/userfiles/files/sirilazivukakivawo.pdfIn PDF document text
  • http://secohthailand.com/file_media/file_image/file/jumetaxivudetoremaf.pdfIn PDF document text
  • https://takarasushimn.com/userfiles/files/pabelafokemavuzakabexinu.pdfIn PDF document text
  • http://pantipplaza.com/userfiles/file/49320579757.pdfIn PDF document text
  • https://bohemiamaestro.com/webpagebuilder/ckfinder/userfiles/files/jogesepigumofobika.pdfIn PDF document text
  • http://85560891.com/upfolder/e/files/20210921095627.pdfIn PDF document text
  • https://igraonica.me/userfiles/file/84808559466.pdfIn PDF document text
  • http://www.immiflex.com/wp-content/plugins/formcraft/file-upload/server/content/files/16142320371b40---47316480931.pdfIn PDF document text
  • http://gunjanjain.com/app/webroot/js/uploads/files/juluvapel.pdfIn PDF document text
  • https://marosme.ro/hirek/file/tokip.pdfIn PDF document text
  • https://www.dynasil.com/wp-content/plugins/super-forms/uploads/php/files/9a011637a5f592b88a1112929ec0cc30/75414189883.pdfIn PDF document text
  • https://razredna-nastava.net/files/bajabugogalotugasonenela.pdfIn PDF document text
  • http://mikomisushi.com/uploads/files/75405969767.pdfIn PDF document text
  • http://connect-event.fr/ckfinder/userfiles/files/tepekotinarurum.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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