Malicious PDF — malware analysis report

Heuristics 8

• 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.
• 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://dsacare.com/admin/uploads/file/dubakuxidokazijosugevu.pdf In PDF document text

  • http://www.mkkdigital.pt/wp-content/plugins/formcraft/file-upload/server/content/files/1613497039ba95---36351471581.pdfIn PDF document text
  • https://newcar-rental.com/uploads/files/202109020721103729.pdfIn PDF document text
  • https://himalayanespresso.com/espresso_ckfinder/userfiles/files/11262814934.pdfIn PDF document text
  • http://plovdivweek.com/app/templates/js/ckfinder/userfiles/files/zewimutowewuz.pdfIn PDF document text
  • http://businesslegalgroup.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/76652253761.pdfIn PDF document text
  • http://unionnutritech.com/upload/files/faleko.pdfIn PDF document text
  • http://tg-focus.ru/userfiles/files/49094775169.pdfIn PDF document text
  • http://bakefruit.com/uploads/files/202109052334465076.pdfIn PDF document text
  • http://msnladyboy.com/ckfinder/userfiles/files/13260099461.pdfIn PDF document text
  • https://tomas-music.com/contents/files/noxobuzijogidevamelew.pdfIn PDF document text
  • https://anctools.com/ckfinder/userfiles/files/93666368586.pdfIn PDF document text
  • https://www.bussmann-tiefbau.de/ckfinder/userfiles/files/17896899700.pdfIn PDF document text
  • https://esvigo.com/upload/files/77991774872.pdfIn PDF document text
  • https://www.auditek.fr/wp-content/plugins/formcraft/file-upload/server/content/files/161379341c14ff---jifiloxawuxi.pdfIn PDF document text
  • https://vdbergelectro.nl/wp-content/plugins/super-forms/uploads/php/files/85b567e7395cfb20a08e6e22d03df7e2/41726320289.pdfIn PDF document text
  • http://okuninka-biale.pl/userfiles/file/rasizezifuletasitifanabi.pdfIn PDF document text
  • http://paintingservicesonline.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1613698023e407---67785056725.pdfIn PDF document text
  • http://avision-italia.com/userfiles/files/jajokipidotixo.pdfIn PDF document text
  • http://jongauger.com/userfiles/file/xajugojobefulenovozesixu.pdfIn PDF document text
  • http://thietbibepnhahang.net/media/files/liwobivasozega.pdfIn PDF document text
  • http://printific.com/images/contentimages/files/53011580832.pdfIn PDF document text
  • https://trinityautorepairs.com/uploads/files/wizijo.pdfIn PDF document text
  • http://www.hcibatiment.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1613ad2078e1e7---pofuvaxisipoxebezoginagin.pdfIn PDF document text
  • https://www.energetisch-therapeut-estie.nl/wp-content/plugins/formcraft/file-upload/server/content/files/161322ab73608a---21986664868.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/1xuhb7AK25c/uplcv?utm_term=apk+de+craftsmanPDF 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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