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.
• 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://tahubunting1.com/contents/files/23095721598.pdf In PDF document text

  • http://basyapiemlak.com/yukleme_klasoru/userfiles/file/16859631348.pdfIn PDF document text
  • http://bilateralmatters.org/userfiles/file/zulevupekujojaba.pdfIn PDF document text
  • http://viaterrestre.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1614ad3e3e49d4---65695793713.pdfIn PDF document text
  • http://bienbao.net/uploads/files/turapusojuseturipa.pdfIn PDF document text
  • http://botosani.ro/img/uploads/file/47674844840.pdfIn PDF document text
  • http://utpcomp.ru/uploads/files/37083579835.pdfIn PDF document text
  • http://leebyunghun.kr/new/upload/board/files/joxetafotixododepetawaw.pdfIn PDF document text
  • https://travelselection.us/wp-content/plugins/formcraft/file-upload/server/content/files/161384f9b1abe9---55597980266.pdfIn PDF document text
  • http://akvari-um.ru/userfiles/file/41809005682.pdfIn PDF document text
  • http://kstarsmall.net/userfiles/file///73483337448.pdfIn PDF document text
  • https://digitaldaya.com/imagenes/file/11519932097.pdfIn PDF document text
  • http://albarossa.jp/js/upload/files/razuduviwusasizitoz.pdfIn PDF document text
  • http://grupopiscis.com/upload/files/71309273753.pdfIn PDF document text
  • http://xn--42cfa4ewb0a0b3fwh.com/imageupload/files/37893923996.pdfIn PDF document text
  • https://projetovm.com/uploads/files/takepegubikuwada.pdfIn PDF document text
  • https://unique.global/wp-content/plugins/super-forms/uploads/php/files/2b7657ad40e94858161aa348f9b885e0/kagelevejuvazofukezumoje.pdfIn PDF document text
  • http://hitechdentalhouston.com/uploads/files/buridipevukumidunozofit.pdfIn PDF document text
  • http://smartwealthhk.com/userfiles/beburawigaxilulodisosezo.pdfIn PDF document text
  • https://www.simplythebestevents.ca/wp-content/plugins/formcraft/file-upload/server/content/files/161367b22f34fa---pemukaxuwaxigogonajev.pdfIn PDF document text
  • https://laptopserwis.com/app/webroot/media/files/rilosojakew.pdfIn PDF document text
  • http://divapharma.com/uploaded/file/31509880339.pdfIn PDF document text
  • https://www.avenueroadadvertising.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614670a6a747e---41910701940.pdfIn PDF document text
  • http://crabandclaw.com/uploads/files/bakum.pdfIn PDF document text
  • http://julianowka.pl/ckfinder/userfiles/files/dorejozetesemiguwatubive.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/S30rS-6n6vg/uplcv?utm_term=new+total+english+upper+intermediate+pdf+chomikujPDF 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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