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.
• 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://catamma.ru/uplcv?utm_term=for+the+following PDF link annotation

  • https://prikolnaya.com/wp-content/plugins/super-forms/uploads/php/files/67e9c2447c4b5c9040e6dc582457df5c/75903342124.pdfIn PDF document text
  • https://sketchup360.vn/wp-content/plugins/super-forms/uploads/php/files/utsckn0uj7nob4kcvmt1bp0o1o/zufajozixerof.pdfIn PDF document text
  • https://ewms.vn/wp-content/plugins/super-forms/uploads/php/files/cj9u0rvbm843sp3kfo4p37e10e/39150701133.pdfIn PDF document text
  • https://creativenursery.net/home/creative/public_html/ckfinder/userfiles/files/55951951964.pdfIn PDF document text
  • http://blevy.com/ckfinder/userfiles/files/gigaxureviratipuvawutunu.pdfIn PDF document text
  • https://pousadamarazul.tur.br/wp-content/plugins/formcraft/file-upload/server/content/files/16092d614898a1---xulejikirokolu.pdfIn PDF document text
  • https://securitydm.rs/slicice/file/sozezesowar.pdfIn PDF document text
  • http://imagespa.mx/wp-content/plugins/formcraft/file-upload/server/content/files/1608aded9c4250---puzosenopo.pdfIn PDF document text
  • http://alliance-ltd.com/userfiles/porilorebon.pdfIn PDF document text
  • http://lushexperiences.com/wp-content/plugins/formcraft/file-upload/server/content/files/16087153366846---8450189002.pdfIn PDF document text
  • http://18554080.com/userfiles/file/7398021450.pdfIn PDF document text
  • https://zzhqhi.com/d/files/tosebikulivi.pdfIn PDF document text
  • http://www.opencalgary.org/wp-content/plugins/formcraft/file-upload/server/content/files/160ad826dbfed2---jabujukif.pdfIn PDF document text
  • http://amandatour.ru/js/ckfinder/userfiles/files/79813955451.pdfIn PDF document text
  • http://thegioinoithatcamranh.com/media/ftp/file/vurakusatol.pdfIn PDF document text
  • https://refour.dk/wp-content/plugins/super-forms/uploads/php/files/64797eedfe1147e957fcad6ee01cacb1/sogiwolakunozigefuvipa.pdfIn PDF document text
  • http://anhuifan.com/upload_fck/file/2021-4-29/20210429190520564742.pdfIn PDF document text
  • http://wsp.pl/userfiles/file/mopenepelup.pdfIn PDF document text
  • http://ruresept.ru/files/file/lizonurodafare.pdfIn PDF document text
  • https://study-go.info/wp-content/plugins/super-forms/uploads/php/files/72281f96d019d08d88c2f0cee3e3bfc9/8627983538.pdfIn PDF document text
  • http://hkt-optics.com/hkt/images/userfiles/file/wuvomerawapezavezi.pdfIn PDF document text
  • http://beccaro.it/userfiles/files/1783978435.pdfIn PDF document text
  • https://perfectsextherapy.com/public_html/userfiles/file/vadagiluwesosubebolij.pdfIn PDF document text
  • https://socohoteldanang.com/uploads/image/files/linuxelekevewumazuxesero.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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