Malicious PDF — malware analysis report

Heuristics 8

• 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.
• Embedded JS stream low PDF_JS
  PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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 http://xn--90aoa5aj.xn--p1ai/ckfinder/userfiles/files/68897358643.pdf In PDF document text

  • https://amkboiler.com/wp-content/plugins/super-forms/uploads/php/files/ggpkgdvqim96tdvtt8aspq5s6c/2848843612.pdfIn PDF document text
  • http://chelseacarpet.com/ckfinder/userfiles/uploads/balapenojad.pdfIn PDF document text
  • https://interangkorcondominium.com/userfiles/file/50006444134.pdfIn PDF document text
  • http://schturman.ru/files/files/gabutev.pdfIn PDF document text
  • http://teplo76.ru/uploads/file/vixinenowif.pdfIn PDF document text
  • https://taechoclub.com/FileData/ckfinder/files/20210916_1893C73FFF81A202.pdfIn PDF document text
  • http://birizgardenhotel.com/userfiles/file/9924041269.pdfIn PDF document text
  • http://awarelaxcentrum.cz/user_files/file/wurukasumizizutazi.pdfIn PDF document text
  • https://brihat-group.com/assets/userfiles/files/janaporapijojo.pdfIn PDF document text
  • https://dabanbep.tanglehadong.com/upload/files/63104777525.pdfIn PDF document text
  • https://abcelectricalonlineshop.brilliantwebtech.com/userfiles/files/pevadobipisawakovek.pdfIn PDF document text
  • http://architettomontanino.eu/userfiles/files/sujixupodefanepojesu.pdfIn PDF document text
  • https://eastmangroupllc.net/ckfinder/userfiles/files/44840479077.pdfIn PDF document text
  • http://elsped.hu/files/file/61557655063.pdfIn PDF document text
  • http://kleinschaden-expert.com/userfiles/file/jivobaraj.pdfIn PDF document text
  • https://www.hemingway.bg/app/templates/js/ckfinder/userfiles/files/25314186601.pdfIn PDF document text
  • https://szelvedojavitasmiskolc.hu/files/files/63181683033.pdfIn PDF document text
  • https://www.cifphosteleriayturismo.es/ckfinder/userfiles/files/sulakemulavix.pdfIn PDF document text
  • http://mineraux-et-lithotherapie.fr/ckeditor/upload/files/51529257675.pdfIn PDF document text
  • http://lnshiyue.com/userfiles/file/20210917103612_1108037025.pdfIn PDF document text
  • https://www.lokalesichtbarkeit.de/wp-content/plugins/super-forms/uploads/php/files/iu7ubkaa4369dfj6secbnekvuv/96194841200.pdfIn PDF document text
  • https://mamproducciones.es/wp-content/plugins/formcraft/file-upload/server/content/files/161466f78b8c59---93735825598.pdfIn PDF document text
  • http://self119.net/upload/userfiles/2021/09/files/210916195729.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1KS0DP0cxss/uplcv?utm_term=ml+mod+menu+download+apkPDF 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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