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.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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://catamma.ru/uplcv?utm_term=class+7+tamil+text+book PDF link annotation

  • https://engravestone.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ac94775adfb---48406756187.pdfIn PDF document text
  • https://thedestinbeachhouses.com/wp-content/plugins/super-forms/uploads/php/files/eb5a7f055dcd328c15476b2a38594793/31874430570.pdfIn PDF document text
  • https://cakesandcupcakes.net/userfiles/files/tifujumukoxonuri.pdfIn PDF document text
  • https://evenimentecastel.ro/wp-content/plugins/super-forms/uploads/php/files/uo7d5t6tg0i3qe41l1pi0u419b/gifawulifuse.pdfIn PDF document text
  • http://bbfederico2.net/userfiles/file/60497494738.pdfIn PDF document text
  • http://k-yoga.org/file_upload/spaw_upload/file/20210506023958.pdfIn PDF document text
  • http://www.startservis.sk/novy/ckfinder/userfiles/files/radufexutof.pdfIn PDF document text
  • https://olympicwroclaw.pl/zdjecia/fck/file/tivubasoliminip.pdfIn PDF document text
  • https://frennphotography.com/wp-content/plugins/formcraft/file-upload/server/content/files/16083d8f76d888---vesuviruraga.pdfIn PDF document text
  • https://atolab.it/wp-content/plugins/super-forms/uploads/php/files/4c17c0ddb40f9e5b23806d8495e47208/89357645553.pdfIn PDF document text
  • https://artsketch.ru/wp-content/plugins/super-forms/uploads/php/files/07c64c77cbc4050f9d562a3b4ab52082/gupazojolabavagibebe.pdfIn PDF document text
  • http://www.siscard.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a32c8d6a8ba---36226899578.pdfIn PDF document text
  • http://hkt-optics.com/hkt/images/userfiles/file/7715719582.pdfIn PDF document text
  • http://xn--h49avwqct32ewe967crscpsaz7d.com/ckupload/files/18780233373.pdfIn PDF document text
  • https://t4g.nasscomfoundation.org/wp-content/plugins/super-forms/uploads/php/files/t9338juqetsl0mo74360f5u1s5/57552662181.pdfIn PDF document text
  • http://spoilersmensgolfclub.com/clients/865201/File/50330377137.pdfIn PDF document text
  • http://sukhabalka.com/files/file/8337138341.pdfIn PDF document text
  • https://advantagelic.com/singhania/downloads/file/zudovinimesuvikuxagawe.pdfIn PDF document text
  • http://fouladsazanco.com/Upload/file/23714176207.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • http://fedorahosted.org/lohitIn PDF document text
  • http://www.daltonmaag.com/In PDF document text
  • 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://scripts.sil.org/OFLIn PDF document text

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