Malicious PDF — malware analysis report

Heuristics 8

• 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.
• QR-code redirect lure medium SE_QR_LURE
  Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
• Embedded JS stream low PDF_JS
  PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
• 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://maytinhdalat.vn/images/uploads/files/govutina.pdf In PDF document text

  • https://lashmakerpro.it/wp-content/plugins/super-forms/uploads/php/files/9of1u8hdiu35qp13rh6j2f94c1/51236506757.pdfIn PDF document text
  • http://thongthien.vn/upload/files/8730369242.pdfIn PDF document text
  • https://skyzoan.com/cake/beta/userfiles/file/64892496890.pdfIn PDF document text
  • http://vipavtoufa.ru/wp-content/plugins/super-forms/uploads/php/files/65c1a9f45782240ef86756c116dbd59f/ripupozemaxipozarekolet.pdfIn PDF document text
  • https://hazeloyun.com/calisma2/files/uploads/89373022251.pdfIn PDF document text
  • http://lachambredechos.com/userfiles/file/677809456.pdfIn PDF document text
  • http://thegrcinstitute.org/app/webroot/js/ckfinder/userfiles/files/10255240186.pdfIn PDF document text
  • https://livre-d-art.com/ckfinder/userfiles/files/fituluniwe.pdfIn PDF document text
  • http://stuarteisbrucklaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/74042360828.pdfIn PDF document text
  • https://xtremefitness.com.au/application/third_party/ckfinder/userfiles/files/lojasekuf.pdfIn PDF document text
  • http://museodegliarazzimarsala.com/userfiles/files/42801964399.pdfIn PDF document text
  • https://daynexweb.com/upload/ckfinder/files/25433917558.pdfIn PDF document text
  • http://lovesushiscv.com/uploads/files/85404010849.pdfIn PDF document text
  • http://orikon.net/Images_upload/files/funaf.pdfIn PDF document text
  • http://abwlondonblvd.com/uploads/files/457410087.pdfIn PDF document text
  • https://gosselindesign.com/images/from_fckeditor/fichiers/33917252904.pdfIn PDF document text
  • http://www.udelimpa.es/ckfinder/userfiles/files/modozezepupateminupi.pdfIn PDF document text
  • http://pileshoppen.dk/userfiles/file/batix.pdfIn PDF document text
  • https://cashofferoregon.com/wp-content/plugins/formcraft/file-upload/server/content/files/16150615727ace---buwefidefo.pdfIn PDF document text
  • https://emilline.dk/ckfinder/userfiles/files/gafexidojimav.pdfIn PDF document text
  • http://labonscafe.com/userfiles/kinizak.pdfIn PDF document text
  • http://caycanhtuyhien.com/uploads/image/files/jakux.pdfIn PDF document text
  • http://tandprotheses.com/ckfinder/userfiles/files/tepofifu.pdfIn PDF document text
  • http://korea-seals.com/ckfinder/userfiles/files/bikaninepoxoxuwuzi.pdfIn PDF document text
  • http://jszl-rolls.com/filespath/files/20210910012517.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/3vuEKuznOb8/uplcv?utm_term=sygic+premium+mod+apkPDF 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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