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 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://crysiq.ru/uplcv?utm_term=katja+schuurman+kind PDF link annotation

  • http://red-persimmons.com/upfiles/editor/files/47604078055.pdfIn PDF document text
  • https://journeypeople.cc/wp-content/plugins/super-forms/uploads/php/files/8b86dea35c8f338911ad5e9355ba674a/jokurip.pdfIn PDF document text
  • https://dacoma.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1607460291594f---56674457053.pdfIn PDF document text
  • https://www.tai.gr/wp-content/plugins/formcraft/file-upload/server/content/files/160a4a43f365cf---47762461129.pdfIn PDF document text
  • https://www.fecomerciomg.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/160b496d4a7d9c---82625333218.pdfIn PDF document text
  • https://securityguardsupply.org/php/uploads/file/tigifepu.pdfIn PDF document text
  • https://njsolarpower.com/wp-content/plugins/super-forms/uploads/php/files/a6692ef104f95ee5003e030fd91df9f4/bukidusulumemun.pdfIn PDF document text
  • http://syarmarka.ru/userfiles/files/vekogomifetadozubak.pdfIn PDF document text
  • https://audit-advisers.com/userfiles/file/retar.pdfIn PDF document text
  • http://naturalmis.com/userfiles/file/36456202203.pdfIn PDF document text
  • http://www.maoles.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a4c03918704---makekufakav.pdfIn PDF document text
  • http://artistalexanderkanevskywinnerinternationalaward.com/clientMedia/file/nolojibemufafeje.pdfIn PDF document text
  • http://salonorganica.ru/upload/files/mukaruj.pdfIn PDF document text
  • http://jpmoto.biz/upload_picture/40344215529.pdfIn PDF document text
  • http://maxtarget.by/ckfinder/userfiles/files/2777567239.pdfIn PDF document text
  • https://ntwbearing.com/UserFiles/File/50540293878.pdfIn PDF document text
  • http://akbmodel.com/wp-content/plugins/formcraft/file-upload/server/content/files/160aa8b11e8855---nijoti.pdfIn PDF document text
  • https://www.nuyew.academy/wp-content/plugins/super-forms/uploads/php/files/47e4d4540ac785946ccb9ab57418feb5/zoziwi.pdfIn PDF document text
  • https://weblative.com/wp-content/plugins/super-forms/uploads/php/files/9992m23tiqbevlkerhtf8778ru/80391359931.pdfIn PDF document text
  • http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a3c81e4b871---76698988927.pdfIn PDF document text
  • http://desushibar.com/userfiles/file/45192955113.pdfIn PDF document text
  • https://dfa-finanz.de/wp-content/plugins/formcraft/file-upload/server/content/files/161043dcb61439---6340942042.pdfIn PDF document text
  • http://helloshoppingnepal.com/userfiles/file/toroluxikumetegipufadosud.pdfIn PDF document text
  • https://honkakuji.jp/honkakuji/images/ckfinder/files/80108108698.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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