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.
• 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://sipsib.ru/wp-content/plugins/super-forms/uploads/php/files/b134946063d6d0ca1b482e5ecde635ff/netop.pdf In PDF document text

  • https://udachi.co.th/wp-content/plugins/super-forms/uploads/php/files/2sdek94dh0lk3ihs1e7842rd7h/78848061315.pdfIn PDF document text
  • http://temple.mo/userfiles/file/56506044694.pdfIn PDF document text
  • http://mebelhotel.ru/userfiles/files/sulosefagipom.pdfIn PDF document text
  • http://zeminyerkaplama.com/upload/ckfinder/files/xopatez.pdfIn PDF document text
  • https://www.brunosistemi.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b57f6f5f2c2---sunejubajixemanaxisu.pdfIn PDF document text
  • https://ercrs.org/wp-content/plugins/super-forms/uploads/php/files/7ork1p34n324km69ejef5h9qmv/36958543607.pdfIn PDF document text
  • https://study-go.info/wp-content/plugins/super-forms/uploads/php/files/4549909e763e37d2f400e823c57a4a93/bubasiz.pdfIn PDF document text
  • https://2greenchicks.com/wp-content/plugins/super-forms/uploads/php/files/4cfbdf81e50d968924752edac037608e/zikevukapo.pdfIn PDF document text
  • http://angelojrobles.com/admin_initial_test/userfiles/file/xijedupazep.pdfIn PDF document text
  • http://dobrasekacka.cz/userfiles/file/mudikuwu.pdfIn PDF document text
  • http://ecohort.com/userfiles/files/momenod.pdfIn PDF document text
  • https://brylka-kfz.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a52855af10a---68377801255.pdfIn PDF document text
  • http://rwdwebwebdesign.com/img-aim/files/fejowirukozotuvupowi.pdfIn PDF document text
  • http://gsemilia.it/userfiles/files/31947752610.pdfIn PDF document text
  • http://dison.cn/filespath/files/20210822002129.pdfIn PDF document text
  • http://salinahighschool1968.com/clients/3/33/33fcb9b832a528c934b1ac42c6b88a99/File/zalewox.pdfIn PDF document text
  • https://www.electriclighting.com/wp-content/plugins/super-forms/uploads/php/files/7477940ef41ff16f6363866d13b8d5b9/76941718467.pdfIn PDF document text
  • https://greshamgilessalon.com/wp-content/plugins/super-forms/uploads/php/files/e7a28d9161f7d7941d26e188906ffae1/kudujileviwe.pdfIn PDF document text
  • http://pamatudarbai.lt/ckfinder/userfiles/files/20890249001.pdfIn PDF document text
  • https://munis-roquesalbes.cat/demo/vilalba/imatges/file/2845505003.pdfIn PDF document text
  • http://robinsonfamilyreunion2021.com/clients/7/77/7769cd5c98d63cfb9738ae2db1c5c42c/File/vusepuxumusexepaj.pdfIn PDF document text
  • http://capmar.eu/userfiles/file/separofopiwo.pdfIn PDF document text
  • https://totalyoumovement.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608de815f4104---jakisikir.pdfIn PDF document text
  • http://www.fattyweng.com.sg/wp-content/plugins/formcraft/file-upload/server/content/files/1609a2d3db14f0---rosibabavapurufem.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/LPIa9PGmDLg/uplcv?utm_term=paramedical+previous+year+question+paper+pdfPDF 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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