Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• 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) 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 http://szentimresiklos.hu/upload/file/fudidenuriwamolifaga.pdf In PDF document text

  • http://lushexperiences.com/wp-content/plugins/formcraft/file-upload/server/content/files/160848e460d2f3---33880214235.pdfIn PDF document text
  • https://www.hungarianassociation.com/wp-content/plugins/formcraft/file-upload/server/content/files/16072a1f8e8d36---37232410980.pdfIn PDF document text
  • https://tcremich.lu/files/files/jatexakujaruger.pdfIn PDF document text
  • https://sckstone.com/wp-content/plugins/super-forms/uploads/php/files/6bb756a71fdbc7e6390f47b93fba70e0/98374748298.pdfIn PDF document text
  • https://aquarell.ro/userfiles/file/22026857771.pdfIn PDF document text
  • http://bpsstudio.hu/uploads/91436661401.pdfIn PDF document text
  • http://files.ibiza-ferien.de/file/lexifab.pdfIn PDF document text
  • http://skiflogistics.ru/userfiles/file/rabixojofavigurodixeg.pdfIn PDF document text
  • https://rybczewice.pl/userfiles/file/pojunowi.pdfIn PDF document text
  • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a437d10affd---vujomewaba.pdfIn PDF document text
  • https://etre-cheval.fr/Applications/MAMP/htdocs/etre%20cheval/news_pix/file/zegosuwi.pdfIn PDF document text
  • http://www.patricktennis.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1607ad30eebff6---52734568142.pdfIn PDF document text
  • http://bjjiffy.com/upload/73551518906.pdfIn PDF document text
  • http://usmleworkout.com/files/file/wafewel.pdfIn PDF document text
  • http://mesahighclassof63.com/clients/79820/File/67355706971.pdfIn PDF document text
  • https://bistro-8.com/wp-content/plugins/super-forms/uploads/php/files/b8a36a994c9497d6c74c8603e2f77f1c/34603444422.pdfIn PDF document text
  • https://vibangnhadat.com/uploads/files/10412594171.pdfIn PDF document text
  • https://laihouston.com/wp-content/plugins/super-forms/uploads/php/files/4086a70ce0535b01c0535c6644e3a41b/64803605855.pdfIn PDF document text
  • http://www.oschouston.com/osc/wp-content/plugins/formcraft/file-upload/server/content/files/16077c16421542---95454813245.pdfIn PDF document text
  • https://sketchup360.vn/wp-content/plugins/super-forms/uploads/php/files/rk9vqjrougkfivofdla3mp08ld/63605361804.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/3vuEKuznOb8/uplcv?utm_term=coordinated+care+formularyPDF 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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