Malicious PDF — malware analysis report

Heuristics 7

• 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.
• 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 https://coretry.ru/uplcv?utm_term=polytechnic+civil+syllabus+2019+pdf+download PDF link annotation

  • https://brokenspoke.com/wp-content/plugins/super-forms/uploads/php/files/a9708b85eb0b1b54307ac05749b96936/59440606006.pdfIn PDF document text
  • http://baschin-heizung.com/meineBilderAlbertGrundschule/file/mimiwuzepez.pdfIn PDF document text
  • http://counterreaction.net/wp-content/plugins/formcraft/file-upload/server/content/files/160c1be2e73568---78000014000.pdfIn PDF document text
  • https://carpanea.it/wp-content/plugins/super-forms/uploads/php/files/1d8912c5c86060648e43d4ef16dd9757/27701975603.pdfIn PDF document text
  • http://fewo-spreewald-schoetzigk.de/brandenburgtag/img/editor/file/lipapogegugizow.pdfIn PDF document text
  • http://paymentsbusiness.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160c41fecdb6c6---najejolepewawogoxe.pdfIn PDF document text
  • https://signika.pl/Upload/file/79338000466.pdfIn PDF document text
  • http://xn----8sbfeahwarn6ac1adp3fb2p.xn--p1ai/userfiles/file/53916043886.pdfIn PDF document text
  • https://www.nuyew.academy/wp-content/plugins/super-forms/uploads/php/files/3d3d8322b1dd3a3769f4b73529f43330/62250963699.pdfIn PDF document text
  • https://safe-international.com/userfiles/file/35987361032.pdfIn PDF document text
  • http://minhquoc.vn/ckfinder/userfiles/files/berig.pdfIn PDF document text
  • http://quadocdao.vn/uploads/files/80860330878.pdfIn PDF document text
  • https://anzmrrn.org/wp-content/plugins/formcraft/file-upload/server/content/files/1606d85c2d74ee---dadiribikoxeluwiv.pdfIn PDF document text
  • https://www.picmephotoboothhire.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1608ae05072cc1---30927844006.pdfIn PDF document text
  • https://intervalhousehamilton.org/ckfinder/userfiles/files/47133271559.pdfIn PDF document text
  • https://creativesilhouettes.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16092908dbefc6---82879281264.pdfIn PDF document text
  • http://aquamedia.cn/ckfinder/userfiles/files/xepoxixewigowixibuta.pdfIn PDF document text
  • https://gym-rectif.fr/ckfinder/userfiles/files/vasujexunafo.pdfIn PDF document text
  • https://susta.vn/userfiles/file/65895797858.pdfIn PDF document text
  • http://electriccityusa.com/images/fck_uploads/file/kosedatanamawewaw.pdfIn PDF document text
  • https://stewsites.com/wp-content/plugins/super-forms/uploads/php/files/4fec82c857f4c69b3686d8080f2d86d2/29848200659.pdfIn PDF document text
  • http://www.commandinglife.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bc238f80b19---kelofubefezagin.pdfIn PDF document text
  • https://mytalk7.com/_UploadFile/Images/file/suvakof.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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