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://crewmak.ru/uplcv?utm_term=all+pronouns+list+pdf PDF link annotation

  • https://lawpropertyconsultants.co.uk/wp-content/plugins/super-forms/uploads/php/files/09797bd3lbspsa3e4os14ebr6p/67227493917.pdfIn PDF document text
  • https://eastmanllc.com/ckfinder/userfiles/files/20482273894.pdfIn PDF document text
  • https://rosemonttherapy.health/wp-content/plugins/super-forms/uploads/php/files/mconqsitshiuihos4osrm7t4nq/xulowekexi.pdfIn PDF document text
  • http://lucidarepavimentimarmogenovaealessandria.it/userfiles/files/tewuwepid.pdfIn PDF document text
  • https://www.kalirich.com/wp-content/plugins/super-forms/uploads/php/files/4419tu0lg5m4ce8tn4n23o16h0/74055331983.pdfIn PDF document text
  • http://clubmaniacr.com/campannas/file/virewogunovijav.pdfIn PDF document text
  • http://aydinservis.com/ckfinder/userfiles/files/begufilafubivaz.pdfIn PDF document text
  • http://sns-russia.ru/userfiles/file/55951363288.pdfIn PDF document text
  • http://fincasotilloviejo.es/files/sotillo/_repo/file/88293314903.pdfIn PDF document text
  • https://gift-edu.ru/wp-content/plugins/super-forms/uploads/php/files/ad7309c2e6e2dd33e081b6565fbb55fb/pebowarilofite.pdfIn PDF document text
  • http://sibmetiz.ru/upload_picture/kitutowirabar.pdfIn PDF document text
  • https://monacollection.ua/wp-content/plugins/super-forms/uploads/php/files/003cf6539104ca4b45f41dd3345a099e/39189093008.pdfIn PDF document text
  • https://razdolle.by/wp-content/plugins/super-forms/uploads/php/files/ccissahc7v402uckgiss0ho976/65565555649.pdfIn PDF document text
  • http://ajk-opakowania.eu/upload/fck/file/51887563016.pdfIn PDF document text
  • http://namuvaldymas.lt/userfiles/file/ziretebifobexobuvir.pdfIn PDF document text
  • https://economiadecomunion.net/ckfinder/userfiles/files/zokegexo.pdfIn PDF document text
  • http://secohthailand.com/file_media/file_image/file/78193025221.pdfIn PDF document text
  • http://www.recetasyconsejos.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bd9017edf61---wopuxodakuxanagedujenu.pdfIn PDF document text
  • http://ptk-astana.kz/wp-content/plugins/super-forms/uploads/php/files/aed7b22afaf7542b00374c63f5255b81/luvojobulaxade.pdfIn PDF document text
  • http://chnli.tw/CKEdit/upload/files/28192744532.pdfIn PDF document text
  • https://www.tctnanotech.com/wp-content/plugins/super-forms/uploads/php/files/fc9e592cab7cb79265ed70d2840e0147/26906559199.pdfIn PDF document text
  • https://sdyh.gr/wp-content/plugins/super-forms/uploads/php/files/c3mnvhsrp9ieauajptklk6fot5/wexitun.pdfIn PDF document text
  • http://www.orarestauratorisaf.it/wp-content/plugins/formcraft/file-upload/server/content/files/160ae711f73d2e---4309465388.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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