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 https://mmszke.hu/files/file/jusimed.pdf In PDF document text

  • https://www.toptalentusa.com/wp-content/plugins/formcraft/file-upload/server/content/files/16089fd6c49710---pamemubagujode.pdfIn PDF document text
  • https://space1500.com/wp-content/plugins/super-forms/uploads/php/files/56b82d6ccd9b07845f6236df242d6755/70161548392.pdfIn PDF document text
  • http://in-dapt.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b3c7f8092a4---nagojugobasariwowut.pdfIn PDF document text
  • https://3dreamstudios.com/wp-content/plugins/super-forms/uploads/php/files/ed334ceb401d85bbf995d0123e078da4/5787753655.pdfIn PDF document text
  • https://luxurytravel-show.com/wp-content/plugins/super-forms/uploads/php/files/758a09e9010660bb5439947744e6af3e/37434128693.pdfIn PDF document text
  • https://janeunchained.com/wp-content/plugins/super-forms/uploads/php/files/va0vqrgdjnb1bcrep6pb74o6l3/18881570957.pdfIn PDF document text
  • http://www.misshandicap.ch/wp-content/plugins/formcraft/file-upload/server/content/files/160bce22018929---95108784145.pdfIn PDF document text
  • http://www.onegelha.com/wp-content/plugins/super-forms/uploads/php/files/d78fad0bdb8c0d9bedce22217fe3b222/9883763115.pdfIn PDF document text
  • http://juniorsmagazine.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d6b8a256ef---woxarelob.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • http://www.daltonmaag.com/In PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/3CAf4wW3hvY/uplcv?utm_term=panasonic+lumix+dmc+fs25+manualPDF 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://scripts.sil.org/OFLIn PDF document text

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