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://huntic.ru/uplcv?utm_term=is+there+gonna+be+another+season+of+13+reasons+why PDF link annotation

  • https://www.mercato.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/16142e38612d4f---zefikibinezebot.pdfIn PDF document text
  • http://xn--90aoa5aj.xn--p1ai/ckfinder/userfiles/files/jibitebalarogegajisu.pdfIn PDF document text
  • http://xn--80aaaaaikdebj9ccf1ayja1b5a3q.xn--p1ai/ckfinder/userfiles/files/pumegaselibusilajedoxamu.pdfIn PDF document text
  • https://classoft.ro/userfiles/file/numikixofebemunoroses.pdfIn PDF document text
  • http://zhouzhuanx.com/v15/Upload/file/20219252117357708.pdfIn PDF document text
  • https://sidexsideaudio.com/wp-content/plugins/formcraft/file-upload/server/content/files/161540f02329d4---83102270124.pdfIn PDF document text
  • http://hk-sai.com/ckfinder/userfiles/files/vajitasaminitew.pdfIn PDF document text
  • http://www.libroparlatolions.it/backoffice/ckfinder/userfiles/files/gikakexowexezo.pdfIn PDF document text
  • http://thueotodn.com/uploads/image/files/67707789922.pdfIn PDF document text
  • http://portamarioarchitetto.eu/userfiles/files/4805880484.pdfIn PDF document text
  • http://www.dadosefatos.net.br/wp-content/plugins/formcraft/file-upload/server/content/files/161538599a460d---7187095686.pdfIn PDF document text
  • http://polipadel.com/userfiles/file/77443201268.pdfIn PDF document text
  • https://greshamgilessalon.com/wp-content/plugins/super-forms/uploads/php/files/c380c6ce8fc3866880de0887e5a6fda7/64947296405.pdfIn PDF document text
  • http://www.sparkprototypes.com/wp-content/plugins/formcraft/file-upload/server/content/files/16139ab65cdeb4---fipofonazifawetarogos.pdfIn PDF document text
  • http://kht.civilkozpont.hu/uploads/file/27689213054.pdfIn PDF document text
  • http://inistor.com/ufiles/files/kadulipipu.pdfIn PDF document text
  • http://drumlockingclamp.com/FCK_Editor_Images/files/2501306930.pdfIn PDF document text
  • https://www.davinci.dk/wp-content/plugins/formcraft/file-upload/server/content/files/1612f5bb3307d5---16351157930.pdfIn PDF document text
  • https://keralatemples.info/ckfinder/userfiles/files/zeninimaxejonavaxeperega.pdfIn PDF document text
  • http://gemmacapitalgroup.com/foto/file/53325118874.pdfIn PDF document text
  • http://apothepharma.com/upload/files/50893685115.pdfIn PDF document text
  • https://paklya.su/design/img/upload/file/71103519654.pdfIn PDF document text
  • https://terracell.info/images/file/6054769479.pdfIn PDF document text
  • http://faurerom.com/userfiles/file/pasufuj.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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