Malicious PDF — malware analysis report

Heuristics 7

• 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.
• 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.
• 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://veronicanealhome.com/wp-content/plugins/formcraft/file-upload/server/content/files/2/160981bc78342d---23777658777.pdf In PDF document text

  • http://nnk.gr/wp-content/plugins/formcraft/file-upload/server/content/files/1611185360655b---mugejotukijewizom.pdfIn PDF document text
  • https://husvagnsexpo.se/wp-content/plugins/formcraft/file-upload/server/content/files/160b9ef06325bc---vajozerajopoluze.pdfIn PDF document text
  • https://liantoong.com/archive/upload/files/21542708308.pdfIn PDF document text
  • http://www.fliesen-brill.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a2e6978e18d---97495307861.pdfIn PDF document text
  • http://wx-test.com/upload/ckimg/files/202108172144564099.pdfIn PDF document text
  • https://ketdoanbus.com/webroot/img/files/tenapupasafugexowetulax.pdfIn PDF document text
  • https://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/160809f43ed8d0---midipodi.pdfIn PDF document text
  • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608790bfe8c35---fupaneluwuwanaru.pdfIn PDF document text
  • http://brenna-ski.pl/userfiles/file/74051024889.pdfIn PDF document text
  • https://www.ideaklinik.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160cb8b95e2559---29889192442.pdfIn PDF document text
  • http://www.tif.cn/wp-content/plugins/super-forms/uploads/php/files/dq3nle49d4etam5ji9eidb1bed/28387795533.pdfIn PDF document text
  • https://www.baptistenhardenberg.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1606e3a691d096---87624855166.pdfIn PDF document text
  • https://www.truesdalepainting.com/wp-content/plugins/formcraft/file-upload/server/content/files/16080d2a7bc71f---12743669141.pdfIn PDF document text
  • https://alfa-clining.ru/wp-content/plugins/super-forms/uploads/php/files/f1feee6077444616ac3fdafc9ef7a7e7/jogebipalamifez.pdfIn PDF document text
  • https://neavocats.com/wp-content/plugins/super-forms/uploads/php/files/2a35f4771a5a5e8c419097956ac8b57c/17237378196.pdfIn PDF document text
  • http://amon-syotengai.com/userfiles/file/30241666469.pdfIn PDF document text
  • http://saamfactory.com/wp-content/plugins/super-forms/uploads/php/files/4ba871d05c44aadbda774d3ab2b7f1a3/joxorovezoduxesoninizo.pdfIn PDF document text
  • http://changrung.com/ckfinder/userfiles/files/niwoj.pdfIn PDF document text
  • http://studiomistretta.com/userfiles/files/xenodotedu.pdfIn PDF document text
  • http://longbienco.com/js/ckfinder/userfiles/files/53224418429.pdfIn PDF document text
  • https://biomisszio.hu/tmp/wovapavuzegi.pdfIn PDF document text
  • https://gift-edu.ru/wp-content/plugins/super-forms/uploads/php/files/ac73ac9d0f029407c844bcd18ba2d06f/jikegafazifefalirati.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/fzgW7-mxBc0/uplcv?utm_term=decode+base64+string+to+pdf+javascriptPDF 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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