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 to algorithmically-generated URL high PDF_RANDOM_URL_LINK
  PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
• 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://pixomot.ru/uplcv?utm_term=manual+of+antimicrobial+susceptibility+testing+2005 PDF link annotation

  • https://www.pfgpartners.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160bb07f59272f---duvibifogok.pdfIn PDF document text
  • http://www.recetasyconsejos.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606ced4b3e813---70255020372.pdfIn PDF document text
  • https://hacunamatata.ru/wp-content/plugins/super-forms/uploads/php/files/5a715384bdf6039f477b0d5a37f8b380/zoreminesulujukusulu.pdfIn PDF document text
  • http://in-dapt.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606cc5006efdb---nitesanunadisikamukapalu.pdfIn PDF document text
  • https://www.hed-endo.hr/wp-content/plugins/formcraft/file-upload/server/content/files/1611ea29fd9321---rajete.pdfIn PDF document text
  • http://umffz21.ru/admin/ckfinder/userfiles/files/zivobufekopusazolawapuwut.pdfIn PDF document text
  • http://beverleyannes.net/home/beverley/public_html/ckfinder/userfiles/files/tepikuvifisijozikos.pdfIn PDF document text
  • https://stthomasorthodoxchurchsouthpampady.com/userfiles/file/50785253625.pdfIn PDF document text
  • http://hesexpo.com/img/editor/image/file/wamakozizorabifezopone.pdfIn PDF document text
  • https://unique.global/wp-content/plugins/super-forms/uploads/php/files/f3142fe8723f2c694ae59be482a09e6a/xotigudesunanufokufal.pdfIn PDF document text
  • https://alsharqcc.com/userfiles/files/68409344807.pdfIn PDF document text
  • http://www.vnos.vn/app/webroot/uploads/files/40219262177.pdfIn PDF document text
  • http://turagent007.ru/userfiles/file/kowipidizowekirotovaduk.pdfIn PDF document text
  • http://timeyear-v.com/userfiles/file/11204476188.pdfIn PDF document text
  • https://nanosoft.mn/images/content/File/nafoba.pdfIn PDF document text
  • http://playbabydoll.com/userfiles/file/kugowurexelezawomimub.pdfIn PDF document text
  • https://concertwristband.com/resimler/files/57754868988.pdfIn PDF document text
  • https://stcatherine.ac.ug/wp-content/plugins/formcraft/file-upload/server/content/files/160a4e22137501---11926261086.pdfIn PDF document text
  • http://www.sensible-seeds-premium.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607272b09e90e---loxutalakepezitunavikul.pdfIn PDF document text
  • https://www.geosuiteonline.de/wp-content/plugins/formcraft/file-upload/server/content/files/160dd5ebabfbac---ropuwuladoboril.pdfIn PDF document text
  • http://loca-granderoue-montaletang.com/ckfinder/userfiles/files/52509884906.pdfIn PDF document text
  • http://busankid.com/webfiles/board/file///rovapefidawozukisu.pdfIn PDF document text
  • http://techsystem.gr/data/uploads/ckeditor/files/70492752126.pdfIn 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://dejavu.sourceforge.netIn PDF document text
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

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