Malicious PDF — malware analysis report

Heuristics 9

• 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.
• Callback phishing phone lure medium SE_CALLBACK_LURE
  Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
• 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.
• Fake invoice / payment lure low SE_INVOICE_LURE
  Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
• 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 http://synfarm.com/upload/files/vurej.pdf In PDF document text

  • https://md-bud.pl/szklo/photos/file/65411632041.pdfIn PDF document text
  • https://chocoinmobiliario.com/wp-content/plugins/super-forms/uploads/php/files/efd99b0dccacff5c96deca74f180f9df/52369986536.pdfIn PDF document text
  • http://asiancfea.org/userfiles/file/sokasixofawumere.pdfIn PDF document text
  • http://sinara.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/1614787e336d93---26359246582.pdfIn PDF document text
  • https://www.loscam.com/lib_common/ckeditor/ckfinder/userfiles/files/kusedowanazujukuke.pdfIn PDF document text
  • http://showpelec.com/data/file/20210904_114903_149.pdfIn PDF document text
  • http://yenidenyuzlendirme.com/ckfinder/userfiles/files/kovupegididokal.pdfIn PDF document text
  • http://dastone.ru/userfiles/file/5577747700.pdfIn PDF document text
  • http://kondicionery-shodnya.ru/upload_picture/file/10640405520.pdfIn PDF document text
  • http://jjw-led.com/userfiles/file/nonenofoladubixe.pdfIn PDF document text
  • https://aquarell.ro/userfiles/file/sufedirebo.pdfIn PDF document text
  • https://xn--80adj7cxa.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/953bf93574b74b6d980c77f127b8d0c1/dijejadaberi.pdfIn PDF document text
  • http://cps-mbstu.edu.bd/app/webroot/js/ckfinder/userfiles/files/91119665885.pdfIn PDF document text
  • https://www.antoniopopolizio.it/ckfinder/userfiles/files/pefolaxakimotegok.pdfIn PDF document text
  • https://notofthisgalaxy.com/wp-content/plugins/super-forms/uploads/php/files/me2dsojeqcoqbk0ruko5jss5d4/78306292203.pdfIn PDF document text
  • http://ototavandosemesi.com/resimler/file/71765913806.pdfIn PDF document text
  • https://yuktiedu.com/wp-content/plugins/super-forms/uploads/php/files/76991d089ad8d7ea5d4bf715fa4f337e/81041787816.pdfIn PDF document text
  • http://noithattamphuong.com/upload/files/dunenemokosetaxo.pdfIn PDF document text
  • https://ef.msfoody.com/upload/files/12458590306.pdfIn PDF document text
  • http://www.heatandgas.com/EditorImages/file/6527710624.pdfIn PDF document text
  • http://feedproxy.google.com/~r/Xvkpad/~3/TSvcnjQ06Jg/uplcv?utm_term=can+i+return+swarovski+in+storePDF link annotation
  • https://www.thc.gda.pl/ckfinder/userfiles/files/64616153277.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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