Malicious PDF — malware analysis report

Heuristics 7

• 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) 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://dongphuchuytai.com/upload/files/nigawo.pdf In PDF document text

  • https://www.businesswatchguardingservices.co.uk/wp-content/plugins/super-forms/uploads/php/files/4nbfjit9dvg1ub8ft4vt32orkv/52473026228.pdfIn PDF document text
  • http://actionelectric.pt/www/wp-content/plugins/formcraft/file-upload/server/content/files/160f8ec2ce7e24---zofewusijenapekikubinolom.pdfIn PDF document text
  • http://hakkabrothers.com/userfiles/file///28466751385.pdfIn PDF document text
  • https://corpusbg.com/files/fck/file/38444279269.pdfIn PDF document text
  • http://verkoop-je-wagen.be/wp-content/plugins/formcraft/file-upload/server/content/files/1609bbbe5142fc---43081507154.pdfIn PDF document text
  • https://mayurherbal.com/userfiles/file/31572462806.pdfIn PDF document text
  • http://cafegreenwichvillage.com/uploads/files/53429177718.pdfIn PDF document text
  • http://www.adarshvidhyasankul.org/userfilesfile/nukiguzoparen.pdfIn PDF document text
  • http://www.hangmandigital.com/files/file/bavasesunarujagaginalijo.pdfIn PDF document text
  • https://affordans.com/ckfinder/userfiles/files/14493518730.pdfIn PDF document text
  • http://am-assets.com/aom/magnolia/userfiles/file/nororenapoditat.pdfIn PDF document text
  • http://acutecardio.ru/sadm_files/mijolozabavolupobido.pdfIn PDF document text
  • http://modelkyujin.com/wp-content/plugins/formcraft/file-upload/server/content/files/1610067428a47e---89779003734.pdfIn PDF document text
  • https://leuphuotcamap.com/uploads/image/files/wakefaferowoxanokavetar.pdfIn PDF document text
  • https://bursaceviritercume.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ad8b365622a---tujadabo.pdfIn PDF document text
  • http://17njl.com/userfiles/files/944740287.pdfIn PDF document text
  • http://www.vivelamusica.es/wp-content/plugins/formcraft/file-upload/server/content/files/160719fde21cda---55084960488.pdfIn PDF document text
  • http://tuanayapim.com/rsm/files/84033027572.pdfIn PDF document text
  • https://szabobuszberles.hu/files/files/vugakiremimofi.pdfIn PDF document text
  • https://fellowpeo.com/wp-content/plugins/super-forms/uploads/php/files/179d9dc3704c6efee1607b7fc08cd7ed/45667868079.pdfIn PDF document text
  • https://reformedgeneration.com/userfiles/file/sulexezi.pdfIn PDF document text
  • https://www.hediyevideo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609d0d64dca65---mugalid.pdfIn PDF document text
  • https://sk-developers.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a49a9e70d49---kifafatabiwut.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/fzgW7-mxBc0/uplcv?utm_term=c%23+itextsharp+pdf+to+excelPDF 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://dejavu.sourceforge.netIn PDF document text
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

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