Malicious PDF — malware analysis report

Heuristics 6

• 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 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://www.diktu.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609a30ebd8ce6---58757140500.pdf In PDF document text

  • https://clinicamanila.com/ckfinder/userfiles/files/gonipusuzetosubo.pdfIn PDF document text
  • https://leicht-spb.ru/wp-content/plugins/super-forms/uploads/php/files/351d96ba8e667a016bf2177ac40f7e2e/65972286625.pdfIn PDF document text
  • https://www.auditek.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1606f18b3f38b7---43233992764.pdfIn PDF document text
  • http://go-trec.com/wp-content/plugins/super-forms/uploads/php/files/fltiiqk1ot1tp83a0u20r959bd/jibuvuzanatulobamal.pdfIn PDF document text
  • http://pelesiuvalymas.lt/i/File/bedopamurawo.pdfIn PDF document text
  • https://rent-1.es/ckfinder/userfiles/files/85050023195.pdfIn PDF document text
  • http://dabaizhongxue.com/upload_fck/file/2021-5-16/20210516173736184207.pdfIn PDF document text
  • http://xn--b1ahhafccpgkb2bxo.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/c26d303a44ee0a1e58c2008474df00b3/benubesatuxug.pdfIn PDF document text
  • http://yngc.ru/admin/ckfinder/userfiles/files/sudaxiduban.pdfIn PDF document text
  • http://yongqingtech.com/d/files/manajezejejasog.pdfIn PDF document text
  • http://sinhorelli.com/userfiles/file/zalezojowawimibatidapigo.pdfIn PDF document text
  • http://rockhouseschool.com/rockhouse/uploads/files/voxabajanetije.pdfIn PDF document text
  • https://brokenspoke.com/wp-content/plugins/super-forms/uploads/php/files/7e0b2f1be4d89f8210dfddbf43bb181f/17969168200.pdfIn PDF document text
  • https://fishuntpesca.it/file/49120023119.pdfIn PDF document text
  • http://bazis-expertiza.ru/ckfinder/core/connector/php/files/fupanigetonebafalunudig.pdfIn PDF document text
  • http://cfh2.com/clients/d/d2/d2a7b52150a7a947468b52e9b7560e3c/File/2372657662.pdfIn PDF document text
  • http://theettiaresottawa.org/clients/e/e8/e8f54e69a7463df9fd0adff13cd8e90f/File/mimemezobaxijarutolaburez.pdfIn PDF document text
  • http://hasici-pristroje-eshop.cz/files/file/mebonaximanetesibilajejak.pdfIn PDF document text
  • https://www.pfgpartners.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16072f25ce02de---bifovuzomikugi.pdfIn PDF document text
  • http://argentum.com/wp-content/plugins/super-forms/uploads/php/files/eddebujr2bfl8a6l5opii9ph1n/tawaxaziroxexuxobugiwag.pdfIn PDF document text
  • https://socialchangefactory.org/wp-content/plugins/super-forms/uploads/php/files/ac49dadaafab278a96b1a8d9ec7564b1/muwusevuvoxejanumuboko.pdfIn PDF document text
  • http://xn--pr3b03lcdvwu9dpynqkc.com/DATA/file/20210718114634.pdfIn PDF document text
  • http://zawayakw.com/wp-content/plugins/formcraft/file-upload/server/content/files/160720fb72d632---893352017.pdfIn PDF document text
  • http://tayles.com/uploaded/6878440981.pdfIn PDF document text
  • http://mackielaw.net/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/34623258745.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/FevRqgeaUVY/uplcv?utm_term=black+frenchie+with+blue+eyesPDF 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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