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://crewmak.ru/uplcv?utm_term=math+worksheets+for+4th+grade+word+problems PDF link annotation

  • https://wkd-uk.com/wp-content/plugins/super-forms/uploads/php/files/7cfd823d979d71fa8b1dbe005427a9d6/zogalof.pdfIn PDF document text
  • http://plovdivweek.com/app/templates/js/ckfinder/userfiles/files/45450488519.pdfIn PDF document text
  • http://austral-immo.com/userfiles/files/tofawow.pdfIn PDF document text
  • http://kystop.com/wp-content/plugins/super-forms/uploads/php/files/ms6vs7vjcd7h38358ml7ds3cp1/kalatiregi.pdfIn PDF document text
  • https://www.siemers-deutschmann.de/wp-content/plugins/super-forms/uploads/php/files/td3mkvu1emko77r2nvub1h3agi/desutodapas.pdfIn PDF document text
  • http://fhhsclassof70.com/clients/4/42/42ce21dc30e429aa976ba070b22ccf93/File/89289898974.pdfIn PDF document text
  • http://falls67.com/clients/50406/File/24027599318.pdfIn PDF document text
  • https://www.democratum.com/wp-content/plugins/super-forms/uploads/php/files/9a181a301c0409fa719274e35eaec6ce/muzunimilufijerirar.pdfIn PDF document text
  • https://at2-turbo-j3t.com/contents/files/88366703075.pdfIn PDF document text
  • http://osc-pribor.ru/products_pictures/file/3023579842.pdfIn PDF document text
  • http://xn--b1ahhafccpgkb2bxo.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/ec949757af45e476638c5eafdc9805ef/wekawep.pdfIn PDF document text
  • http://dwallacelaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/zutoxujezigamu.pdfIn PDF document text
  • https://www.oasipizza.it/wp-content/plugins/formcraft/file-upload/server/content/files/160c7201e9358c---rewepezosirefum.pdfIn PDF document text
  • http://ccswcd.com/userfiles/file/6622752440.pdfIn PDF document text
  • https://graveyards-fuj.ae/userfiles/files/9905470974.pdfIn PDF document text
  • http://www.fullertherapy.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608a1a02c5bfa---32331204476.pdfIn PDF document text
  • http://sushrutproctology.org/ckfinder/userfiles/files/37326426582.pdfIn PDF document text
  • http://np-laser.com/upload_fck/file/2021-6-21/20210621175106831575.pdfIn PDF document text
  • https://atpl.aero/ckfinder/userfiles/files/6047021234.pdfIn PDF document text
  • http://zabradli-znerezu.cz/userfiles/file/zimutijigabapewikifijilas.pdfIn PDF document text
  • https://srp-galabau-rostock.de/wp-content/plugins/super-forms/uploads/php/files/kkj8uj71uqtanpoag49fc9ksec/43822921187.pdfIn PDF document text
  • https://web-sila.ru/wp-content/plugins/super-forms/uploads/php/files/ffe3d7102be76a26f5fc3adecf7297d0/94112725631.pdfIn PDF document text
  • http://kindervakantieweekdeurne.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160730149cc2d1---5707354676.pdfIn PDF document text
  • https://www.pfgpartners.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160bc14bfa2fe8---sorijiliditibirej.pdfIn PDF document text
  • https://www.northamericatalk.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c06a4a349ff---61050359540.pdfIn PDF document text
  • https://homini.eu/wp-content/plugins/formcraft/file-upload/server/content/files/1606f97cabab92---lexegunavugub.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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