Malicious PDF — malware analysis report

Heuristics 6

• 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 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://medvor.ru/uplcv?utm_term=gram%C3%A1tica+y+ortograf%C3%ADa+b%C3%A1sicas+de+la+lengua+espa%C3%B1ola+2019+pdf PDF link annotation

  • http://anjilh.com/uploadfile/file///2021050114592710.pdfIn PDF document text
  • https://optimuselearningschool.com/learning/site/images/uploadfiles/93275926080.pdfIn PDF document text
  • http://www.trimbleexpress.sk/wp-content/plugins/formcraft/file-upload/server/content/files/160a788af07a8f---duwemawudiwufefesomi.pdfIn PDF document text
  • https://nscs.org/wp-content/plugins/super-forms/uploads/php/files/eda49fe28a5071e086fb17c26a63c331/74760754028.pdfIn PDF document text
  • http://smartcookieacademy.com/wp-content/plugins/formcraft/file-upload/server/content/files/160fb968dd0fe0---27265904868.pdfIn PDF document text
  • http://dep14kirov.ru/userfiles/file/7065530819.pdfIn PDF document text
  • https://churchosonline.com/wp-content/plugins/super-forms/uploads/php/files/3ea92e3a4702b8e0035a238d86239309/86807696636.pdfIn PDF document text
  • https://cristiandellavedova.com/wp-content/plugins/super-forms/uploads/php/files/1epjsrmpft1lfrav8f17ur3va6/sixivasotegowanoji.pdfIn PDF document text
  • http://royalgoodviewresort.com/Uploads/file/zilufuj.pdfIn PDF document text
  • https://svrcontractors.com/wp-content/plugins/super-forms/uploads/php/files/34a1814e15266a23851a25321701f3df/siwofesotudaxaveguxora.pdfIn PDF document text
  • https://susta.vn/userfiles/file/mirevilazazibesepo.pdfIn PDF document text
  • http://www.johnknox.ch/wp-content/plugins/formcraft/file-upload/server/content/files/16091a51563863---zimevazajawuwewefebupefo.pdfIn PDF document text
  • https://www.potterycommercials.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1606f9cd42d571---14689733899.pdfIn PDF document text
  • http://inspirationallabels.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1608320aec6dbb---tobowawejirekawelakanak.pdfIn PDF document text
  • https://totalyoumovement.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607b06aa19b13---4280887280.pdfIn PDF document text
  • https://butterfly-propertymanagement.com/userfiles/file/4478533850.pdfIn PDF document text
  • https://belloverde.net/emailer/file/88392785268.pdfIn PDF document text
  • https://vmkstroi.ru/wp-content/plugins/super-forms/uploads/php/files/50c611d53284f089dadcdb8fac8f7df5/3310956624.pdfIn PDF document text
  • https://summit-christian-academy.net/scauserfiles/files/89514092094.pdfIn PDF document text
  • http://hzdsbg.com/uploadfile/1626220658.pdfIn PDF document text
  • http://lorofilmes.com/Uploads/ckfinder/userfiles/files/givevejeka.pdfIn PDF document text
  • https://www.gsccn.it/wp-content/plugins/formcraft/file-upload/server/content/files/1610bba4780f24---68579984455.pdfIn PDF document text
  • https://artsketch.ru/wp-content/plugins/super-forms/uploads/php/files/06bce3bc870a11d575cf18cc31ec88f5/napamijefenokem.pdfIn PDF document text
  • http://polymer-optix.de/userfiles/file/gavexanajixalilediloloves.pdfIn PDF document text
  • https://www.medicalart.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160be23730f89e---42767073891.pdfIn PDF document text
  • http://stkvn.ru/wp-content/plugins/super-forms/uploads/php/files/9cd2bd9ee00f35e3e4495f3a00ed0dc6/sodukoreduvepivinuwadikuz.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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