Malicious PDF — malware analysis report

Heuristics 6

• 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.
• 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://www.cr-sdc.org/wp-content/plugins/super-forms/uploads/php/files/6c2872850ba6012fd43fa8e1b49d456d/52413865473.pdf In PDF document text

  • https://www.herewardcarpets.co.uk/wp-content/plugins/super-forms/uploads/php/files/9rfe5ud4fd662t80jkh3i0cl9k/39056396823.pdfIn PDF document text
  • https://mmagame.com/userfiles/file/9818561938.pdfIn PDF document text
  • http://www.stockholmswingallstars.com/wp-content/plugins/formcraft/file-upload/server/content/files/16070970f4c874---lokosotazemine.pdfIn PDF document text
  • https://hsegroup.ru/wp-content/plugins/super-forms/uploads/php/files/tg3f6uae396d3ov75ltmsm8uc7/48476300248.pdfIn PDF document text
  • https://gamedunyasi.com/calisma2/files/uploads/52166527847.pdfIn PDF document text
  • http://ranaghatpchsschool.org/userfiles/file/90842470187.pdfIn PDF document text
  • http://pc75.net/upfiles/file/1624358751.pdfIn PDF document text
  • https://bikinibody.be/wp-content/plugins/super-forms/uploads/php/files/33s54hesel8gl9bn5o1bq6dgaj/pilefewovunijejivukidizi.pdfIn PDF document text
  • http://www.bestlifepolicy.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160a829ea747c8---95441552253.pdfIn PDF document text
  • http://magogaralbamoble.com/galeria/files/52717819453.pdfIn PDF document text
  • http://bellezaeimagen.com.mx/wp-content/plugins/formcraft/file-upload/server/content/files/16075ef6447563---liwuvunogimikirexerekes.pdfIn PDF document text
  • http://www.zywawiara.pl/pliki/bigawuposepuripexefes.pdfIn PDF document text
  • http://mlkscholarshipsmilwaukee.org/clients/f/f0/f021f13c5c598389be7e913a1ae626ff/File/32982339990.pdfIn PDF document text
  • http://absigorta.come/file/tebenubesera.pdfIn PDF document text
  • https://mamproducciones.es/wp-content/plugins/formcraft/file-upload/server/content/files/16082fdca1b07a---kideroz.pdfIn PDF document text
  • http://owv-sad.de/userfiles/files/paferutulawumidomenapad.pdfIn PDF document text
  • http://www.uvhk.com/wp-content/plugins/formcraft/file-upload/server/content/files/16084396185896---bofipedusokuki.pdfIn PDF document text
  • http://goodtraefarm.com/ckupload/files/64792584290.pdfIn PDF document text
  • https://aguiapromocional.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16089afa1470f3---67285291974.pdfIn PDF document text
  • http://adhdadvisory.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b984caef1d6---52734061691.pdfIn PDF document text
  • http://teerosy.com/ipp/images/uploads/files/fixejazurisul.pdfIn PDF document text
  • http://ednak.com/wp-content/plugins/formcraft/file-upload/server/content/files/16071d1bc4522f---rozuzevefezenu.pdfIn PDF document text
  • http://alfavit.tv/userfiles/file/11159279610.pdfIn PDF document text
  • https://premiumvipbusiness.com/wp-content/plugins/super-forms/uploads/php/files/d1930ade492117284474d746c20daff8/21946662688.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/DOqCt-cVA4I/uplcv?utm_term=white+discharge+after+spaying+dogPDF 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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