Malicious PDF — malware analysis report

Heuristics 6

• 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.
• 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://dakhoathienhoa.net/images/files/98291164860.pdf In PDF document text

  • http://www.cenlaenvironmental.com/siteuploads/editorimg/file/50025542240.pdfIn PDF document text
  • https://primeodontorj.com/wp-content/plugins/super-forms/uploads/php/files/33a9a3272b3897425c760fbbe1c96f43/rajomegitadir.pdfIn PDF document text
  • http://fogathajtohirek.hu/fckfiles/file/kebov.pdfIn PDF document text
  • http://nail-free.com/ckfinder/userfiles/files/62982796778.pdfIn PDF document text
  • http://wearefamilypalestine.com/clients/3/3b/3bc38fc23f9ffb54b20226cbd6ad6ce3/File/nosesipe.pdfIn PDF document text
  • https://adiwirawanbali.com/wp-content/plugins/super-forms/uploads/php/files/fb1c713f1b3213445b3d700d7fe4bd25/nirijalogabivukata.pdfIn PDF document text
  • http://www.nbrownies.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16071a4f5482d1---28135510144.pdfIn PDF document text
  • http://asiancfea.org/userfiles/file/fiwumazo.pdfIn PDF document text
  • http://sola-brothers.com/userfiles/file/popaxiwodavarakavivud.pdfIn PDF document text
  • http://lafiestadelmoto.cz/files/file/49359685934.pdfIn PDF document text
  • http://adbuilder.at/ckfinder/userfiles/files/ruxijigeropu.pdfIn PDF document text
  • http://associacaoguainumbi.org.br/wp/wp-content/plugins/formcraft/file-upload/server/content/files/1606d8b7069c47---27749457377.pdfIn PDF document text
  • https://parisautotravel.com/wp-content/plugins/super-forms/uploads/php/files/sgbc5qhq1n005t0d6jinb10l50/wakofodules.pdfIn PDF document text
  • https://www.blackandwhite-salon.com/wp-content/plugins/super-forms/uploads/php/files/5f599506dd17a0e4c7f5e850fe71c461/18339230880.pdfIn PDF document text
  • https://www.citysecurity.org.uk/wp-content/plugins/super-forms/uploads/php/files/6so0riq3btpnovpetoo0h09uh2/tobevoganepikebolasex.pdfIn PDF document text
  • https://drhuanghair.com/uploads/files/202108212138049565.pdfIn PDF document text
  • https://www.etbsupplies.com/wp-content/plugins/formcraft/file-upload/server/content/files/160723547c64e7---61956297593.pdfIn PDF document text
  • https://toromecanicorodeo.com/files/gidefeserukiredafopu.pdfIn PDF document text
  • http://www.platformliften.info/wp-content/plugins/formcraft/file-upload/server/content/files/16094aa68e9277---53878146777.pdfIn PDF document text
  • http://vtaky.sk/media/file/jejaxepom.pdfIn PDF document text
  • http://mauchlineware.com/html/chapelstreet/web/userfiles/files/61976083630.pdfIn PDF document text
  • http://drivescuolaguida.it/userfiles/files/nuxuzozijokusakoji.pdfIn PDF document text
  • http://dhf-china.com/d/files/finagax.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BvfzZFkJO3s/uplcv?utm_term=first+grade+reading+stories+pdfPDF 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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