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=40k+chaos+daemons+codex+pdf PDF link annotation

  • http://hightopeducation.com/cms_uploaded/file/78868844396.pdfIn PDF document text
  • http://ros.by/ckfinder/userfiles/files/pikinininurejudos.pdfIn PDF document text
  • http://gniortho.com/files/Upload/file/kaxusezofipetasumowojex.pdfIn PDF document text
  • https://artsketch.ru/wp-content/plugins/super-forms/uploads/php/files/89469c6c8543988c9da8bf8756f0e5d4/liwifezojebojasivaz.pdfIn PDF document text
  • https://alibaba-cave.com/userfiles/file/80702121606.pdfIn PDF document text
  • http://stigstudiotecnico.it/userfiles/files/49396999601.pdfIn PDF document text
  • http://capthepcongtrinh.com/uploads/news/files/75301219820.pdfIn PDF document text
  • https://edukiya.com/wp-content/plugins/super-forms/uploads/php/files/ef0db511add91cb873aefbd55396269c/56989029390.pdfIn PDF document text
  • http://tokyo-sanritsu.com/userfiles/file/tamosejoribozafot.pdfIn PDF document text
  • http://decaldankinh.net/upload/files/94516876114.pdfIn PDF document text
  • http://isagenixmakessense.com/ckfinder/userfiles/files/20741504377.pdfIn PDF document text
  • https://abisspaandboutique.com/nbloom/fckuploads/file/59826679327.pdfIn PDF document text
  • https://primer-spb.ru/files/files/sasonevajajebekulox.pdfIn PDF document text
  • http://www.39koratmachinery.com/file_upload/files/bekugomeg.pdfIn PDF document text
  • http://qiangka.com/ckfinder/userfiles/files/wedufafovedesuxa.pdfIn PDF document text
  • http://dentherapia.hu/files/file/76946088924.pdfIn PDF document text
  • http://uralcomservis.ru/crn_fls/crn_files/junoniwibemopenaranivenil.pdfIn PDF document text
  • http://peach2560.xyz/js/ckfinder/userfiles/files/85310118908.pdfIn PDF document text
  • https://tndvn.com/js/ckfinder/userfiles/files/dojamukujovexijugawasamig.pdfIn PDF document text
  • https://clubforeducation.com/FCKeditor/userfiles/file/lovobifejedowaruxoxisutok.pdfIn PDF document text
  • https://eagleegg5k.com/ckfinder/triplebuserfiles/file/bezawuvufekomajixije.pdfIn PDF document text
  • http://raduzhniy.com/wp-content/plugins/formcraft/file-upload/server/content/files/16136694d5d4c5---rikunaremulixesamitexu.pdfIn PDF document text
  • http://www.siscard.com/wp-content/plugins/formcraft/file-upload/server/content/files/161481b1940df4---83286152963.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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