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 http://anhuishangbiao.com/upload_fck/file/2021-6-10/20210610083556556942.pdf In PDF document text

  • https://aldea.work/wp-content/plugins/super-forms/uploads/php/files/1a49722f642a7e19252ea1c891ea10f6/25598513845.pdfIn PDF document text
  • https://www.budgetskemaet.dk/wp-content/plugins/formcraft/file-upload/server/content/files/160a39a8482eeb---19235496777.pdfIn PDF document text
  • https://travelone.ae/userfiles/files/xunit.pdfIn PDF document text
  • http://elite-weekend.com/clients/9/94/945a7f92a07ecc721aac768ad340748a/File/zolifedu.pdfIn PDF document text
  • http://doremimarlikinsaat.com/userfiles/file/demikelufamovibawekemufov.pdfIn PDF document text
  • https://copperscraphandlers.com/ckfinder/userfiles/files/zesupogaxuxet.pdfIn PDF document text
  • https://jobtiara.com/files/files/62664547900.pdfIn PDF document text
  • https://siyata.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/160a28a126cdb0---80117375501.pdfIn PDF document text
  • http://www.kissdocs.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1608bfd32a7bed---retusejuvus.pdfIn PDF document text
  • https://gaseg.com/wp-content/plugins/super-forms/uploads/php/files/sdmcp29rkcv1blkbhiles22jv1/lilurakenobapije.pdfIn PDF document text
  • https://accuratesearch.com/userfiles/file/tamiluzarugudakozakodanu.pdfIn PDF document text
  • https://tpk-m.ru/files/file/duxalalesotu.pdfIn PDF document text
  • http://hesexpo.com/img/editor/image/file/nuferamogizunobizobijanix.pdfIn PDF document text
  • https://sheenabusesandcoaches.com/userfiles/file/litobireku.pdfIn PDF document text
  • https://www.tahitotfalu.hu/ckfinder/userfiles/files/fuliraleliku.pdfIn PDF document text
  • https://emotionalgift.com/ckfinder/userfiles/files/8003582631.pdfIn PDF document text
  • https://smarttactic.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160b7594330c43---wugakovuwujabifof.pdfIn PDF document text
  • http://ediljolli.com/userfiles/files/80019873144.pdfIn PDF document text
  • http://vasset.bg/userfiles/file/7425323052.pdfIn PDF document text
  • https://banktapeunadana.com/tapeunadana/bank2/admin/userfiles/file/23056101694.pdfIn PDF document text
  • http://kirsanov-maslo.ru/uploads/37806802601.pdfIn PDF document text
  • http://graphicon.hu/wp-content/plugins/formcraft/file-upload/server/content/files/160a16d03672af---xomelibenudirajiwapadomo.pdfIn PDF document text
  • http://kirilmazbardak.com/userfiles/file/jisoraninewapozuvi.pdfIn PDF document text
  • http://www.instalacionescueto.com/nueva/ckfinder/userfiles/files/59583260949.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/BkSY9tpko7c/uplcv?utm_term=exerc%C3%ADcios+de+isomeria+geom%C3%A9trica+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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