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://krisoc.ru/uplcv?utm_term=why+cell+wall+is+present+in+plant+cell+but+not+in+animal+cell PDF link annotation

  • https://wurstfargo.com/wp-content/plugins/super-forms/uploads/php/files/dc8ab9852726401a02897ea97d9f8d95/fafevib.pdfIn PDF document text
  • https://www.asahinadigital.com/wp-content/plugins/super-forms/uploads/php/files/8ik8fiq8lfkiv6q95md8959ck0/18779308413.pdfIn PDF document text
  • http://rebeccafantarchitetto.it/userfiles/files/bikimegojij.pdfIn PDF document text
  • http://edgecs.net/documents/88320778756.pdfIn PDF document text
  • https://i3mit.com/shopadmin/upload/files/rixebutawa.pdfIn PDF document text
  • https://www.hediyevideo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160837b3393c04---pefon.pdfIn PDF document text
  • http://project-lovcen.me/userfiles/file/23266266785.pdfIn PDF document text
  • http://baanpowertrain.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608308617876e---39283384680.pdfIn PDF document text
  • https://kassa-evotor.ru/wp-content/plugins/super-forms/uploads/php/files/ohjdvbtfo9mij56d70hiv57lsv/fepadipipamubaruxokukage.pdfIn PDF document text
  • https://xn--i1aam8cb.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/1a7cae7dd8613e1135aad56b56089b74/runelakib.pdfIn PDF document text
  • http://berbun.com/user_img/file/fekar.pdfIn PDF document text
  • https://vakukh.ru/wp-content/plugins/super-forms/uploads/php/files/eaf9fce32ba2d85f2dcee5c0d67069a6/19990532249.pdfIn PDF document text
  • http://hongshengfish.com/uploadfiles/20210627/210627154750028941ljn1xgag386s.pdfIn PDF document text
  • https://www.visitrwanda.com/wp-content/plugins/super-forms/uploads/php/files/073ed43fe4356e90ac129f512348066a/kabar.pdfIn PDF document text
  • https://htfcompact.com/wp-content/plugins/super-forms/uploads/php/files/db3de5bed39b8e5cf9c37283a71dedf5/80828410317.pdfIn PDF document text
  • https://mygamedaysports.com/wp-content/plugins/super-forms/uploads/php/files/630cd025dbed27860f9266e1d4b4268b/raxujekowowuxufarumefi.pdfIn PDF document text
  • http://bestforfishing.com/wp-content/plugins/super-forms/uploads/php/files/d44d22d9bddaa5fb061e57700f5aebb2/68534986741.pdfIn PDF document text
  • https://alenakovalchuk.ru/wp-content/plugins/super-forms/uploads/php/files/5bf9ef7c591e8235c58cb9f2cf990aa7/72443850138.pdfIn PDF document text
  • https://livingcircles.ch/wp-content/plugins/formcraft/file-upload/server/content/files/160875168e35db---33850897495.pdfIn PDF document text
  • http://iamsoldierfit.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609867a7a3005---46077590071.pdfIn PDF document text
  • https://thediamangroup.com/_images/files/91989867147.pdfIn PDF document text
  • https://www.hediyevideo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160731a876907b---61205642612.pdfIn PDF document text
  • https://californiaoptionsrealestate.com/wp-content/plugins/super-forms/uploads/php/files/abf59ef8488ca8f61ef2fdf4a0bfcdd7/bigomavugazax.pdfIn PDF document text
  • https://limpjet.com.br/wp-content/plugins/super-forms/uploads/php/files/08bff15672c91a5017d41f00b957c539/84892914025.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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