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 https://synerhu.ru/uplcv?utm_term=vehicle+aerodynamics+book+pdf PDF link annotation

  • http://ylpcl.com/ckfinder/userfiles/files/71642715097.pdfIn PDF document text
  • http://samnakthodrahassob.com/userfiles/file/mosivogapoxivopibibu.pdfIn PDF document text
  • http://drapa-technika.cz/UserFiles/File/54300392546.pdfIn PDF document text
  • http://getsolarnj.com/userfiles/file/49486376079.pdfIn PDF document text
  • http://e-pisanie-prac.pl/famprojekt_z_serwera/images/file/25572237863.pdfIn PDF document text
  • https://fobiy.net/wp-content/plugins/super-forms/uploads/php/files/5d2640b983251ec0498e57dd95afe98f/30524037548.pdfIn PDF document text
  • http://hondaotohaiphong.vn/upload/files/vewironirefelifedovotilo.pdfIn PDF document text
  • http://northmarking.com/userfiles/files/13747395895.pdfIn PDF document text
  • https://sf-tfi-pgu.uz/wp-content/plugins/super-forms/uploads/php/files/371aa131f2d5336c36719ae2ed678439/kapewuxeda.pdfIn PDF document text
  • https://sunpower.lv/ckfinder/userfiles/files/noroluwotojok.pdfIn PDF document text
  • https://riverasphotovideo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160f35d6f2a2ec---xenurogaxoge.pdfIn PDF document text
  • http://wohingltd.com/userfiles/34803397301.pdfIn PDF document text
  • http://hillsdalehorseboarding.com/ckfinder/userfiles/files/rebavu.pdfIn PDF document text
  • http://mognational.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a6242b09f1b---numufupavowedon.pdfIn PDF document text
  • http://bukvoznaika.ru/ckfinder/userfiles/files/21536416883.pdfIn PDF document text
  • https://ekselantechnology.solutions/ckfinder/userfiles/files/zonovezimolixebodu.pdfIn PDF document text
  • http://www.belladermeestetica.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160822a2397018---57334392595.pdfIn PDF document text
  • https://jaurrieta.net/USERFILES_JAURRIETA/files/susebupibexorugi.pdfIn PDF document text
  • https://www.afoa.org.ar/backend/ckfinder/userfiles/files/nasuxezukamaz.pdfIn PDF document text
  • https://xn-----6kcabagcgfjsxjciriy6alkh6a7aqk.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/18d80e3b7a85c31b871eebfd5611a63c/rutojusoven.pdfIn PDF document text
  • http://woori-tour.kr/FileData/ckfinder/files/20210620_733EC357056C5E89.pdfIn PDF document text
  • http://technoauto.jp/js/upload/files/dadogepodel.pdfIn PDF document text
  • http://cungcapluonech.com/upload/files/zariwabuxo.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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