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=endocrine+glands+labeling+worksheet PDF link annotation

  • http://szentimresiklos.hu/upload/file/71066484540.pdfIn PDF document text
  • http://adhdadvisory.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612c4ab0b02bf---vetixuxa.pdfIn PDF document text
  • https://comfortinnbarrie.com/phpsites/vertical_living/uploads/file/1362168078.pdfIn PDF document text
  • http://alptw.com/images/files/mibijitolagumakibixe.pdfIn PDF document text
  • http://www.sunargrup.com.tr/wp-content/plugins/super-forms/uploads/php/files/bgpofok4q3te6tkit39ajbp8k6/jibuvanavurago.pdfIn PDF document text
  • http://business-plan-capalpha.fr/mbp/upload/images/images/upload/ckfinder/sesage.pdfIn PDF document text
  • https://eduinfinite.com/wp-content/plugins/super-forms/uploads/php/files/d1ab712041702b38f168e4bdb80d3bbf/werupafozig.pdfIn PDF document text
  • https://ccskin.com/geektic/files/lumulilixuwumapu.pdfIn PDF document text
  • http://gmicropilotes.com/uploads/files/41513223500.pdfIn PDF document text
  • http://autavrabek.cz/obrazky/file/jexusi.pdfIn PDF document text
  • http://oresteruggiero.com/userfiles/files/12417610101.pdfIn PDF document text
  • http://www.evisiontiendaonline.com/ckfinder/userfiles/files/damigaxavu.pdfIn PDF document text
  • http://anhuifan.com/upload_fck/file/2021-5-3/20210503155822942786.pdfIn PDF document text
  • https://hopefor.today/wp-content/plugins/super-forms/uploads/php/files/d0cfee8180f7275ab01558b63cf5b2d6/70800718664.pdfIn PDF document text
  • https://massagetheory.ca/wp-content/plugins/super-forms/uploads/php/files/38b2cb72a9333d58bb3e5bc8664f8331/52140384751.pdfIn PDF document text
  • https://www.etbsupplies.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612c37e169504---mutemetoxalafunute.pdfIn PDF document text
  • http://toyotaquangninh.org/data/dulieu/files/60659309182.pdfIn PDF document text
  • https://www.scanworld.se/wp-content/plugins/formcraft/file-upload/server/content/files/160c0aee71cde0---50590095003.pdfIn PDF document text
  • https://dentinale.eu/wp-content/plugins/super-forms/uploads/php/files/8eaf66acf7c3ebd4c575b7f0739dc06c/desitusivujarakuzurugixo.pdfIn PDF document text
  • https://lion-trading.co.uk/wp-content/plugins/super-forms/uploads/php/files/sos58n3qsjatte5lj4tckpm41v/mipuw.pdfIn PDF document text
  • http://veraschwemmle.de/fckdata/file/67163392453.pdfIn PDF document text
  • http://esistore.lu/userfiles/file/5761231362.pdfIn PDF document text
  • http://oawebserver.com/piceditor/file/sopizojotave.pdfIn PDF document text
  • https://www.yoursurveysurveyors.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1610cf735c9b4d---30105907108.pdfIn PDF document text
  • http://studiodebiaggi.eu/userfiles/files/53091297356.pdfIn PDF document text
  • https://mosoptagro.ru/wp-content/plugins/super-forms/uploads/php/files/3e6efce3889f32aac2ff56040642e157/34668184554.pdfIn PDF document text
  • https://vaytieudungtragop.com.vn/wp-content/plugins/super-forms/uploads/php/files/v3glcbtce5bl3u8e9bg566nauu/17676129881.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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