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://mediabandit.com/wp-content/plugins/formcraft/file-upload/server/content/files/16144676c9a200---rafubiginulog.pdf In PDF document text

  • http://xn--o39a91gvwm83kbsn.net/FileData/ckfinder/files/20210918_578AC90C1732CC95.pdfIn PDF document text
  • https://pcparts.fr/ckfinder/userfiles/files/90329872607.pdfIn PDF document text
  • http://s2ipower.com/survey/userfiles/files/gozodavemaruma.pdfIn PDF document text
  • http://urparitet.ru/admin/ckfinder/userfiles/files/zodawadoxonene.pdfIn PDF document text
  • http://speed-r.com/js/upload/files/poxiboxenefod.pdfIn PDF document text
  • https://ehotelgateway.com/bot/ckfinder/uf/files/38024713531.pdfIn PDF document text
  • https://www.hintonassociates.com/wp-content/plugins/super-forms/uploads/php/files/ed97800261346503ea31e5e85d10cf35/12025407258.pdfIn PDF document text
  • http://sciattella.net/images/file/50343986689.pdfIn PDF document text
  • http://smsalumni1971.com/apadmin/uploads/userfiles/files/60850887574.pdfIn PDF document text
  • http://pibar.tw/uploads/files/202109041721392537.pdfIn PDF document text
  • https://valubil.com/public/uploads/cms_file/cms_files/36972612707.pdfIn PDF document text
  • http://sanfrancescovet.com/userfiles/files/zevelexow.pdfIn PDF document text
  • http://fbrasil.com/userfiles/file///zitawevinavux.pdfIn PDF document text
  • http://matras-devison.ru/upload/file/42038297703.pdfIn PDF document text
  • https://atlaskvartir.ua/data/uploads/files/69942545949.pdfIn PDF document text
  • https://cplastik.cz/data/cms/file/wenipufupokame.pdfIn PDF document text
  • http://arcstema.com/userfiles/files/42042588273.pdfIn PDF document text
  • https://123kozijnofferte.nl/wp-content/plugins/super-forms/uploads/php/files/6a0c131dd785f485efcd8cef45de1238/50912839705.pdfIn PDF document text
  • http://ensky-chemical.com/upload/files/pukarukipopitufodisigov.pdfIn PDF document text
  • http://logistra.fr/ressource/site-image/files/61698157531.pdfIn PDF document text
  • http://4x4autok.hu/userfiles/files/xejad.pdfIn PDF document text
  • http://salwex.hu/file/valurojiginorewaboj.pdfIn PDF document text
  • https://fermuar.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613f9881c43e1---23517035560.pdfIn PDF document text
  • http://dsagco.com/Upload/file/14243281069.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/fzgW7-mxBc0/uplcv?utm_term=firmware+upgrade+encountered+an+issuePDF 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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