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://nomylo.ru/uplcv?utm_term=t%E1%BA%AFt+c%C3%A1c+%E1%BB%A9ng+d%E1%BB%A5ng+ch%E1%BA%A1y+ng%E1%BA%A7m+tr%C3%AAn+android PDF link annotation

  • https://whitelightdesign.com/wp-content/plugins/super-forms/uploads/php/files/2f0c2d5a06c03f92708583347cd086fb/bazumuminofenajota.pdfIn PDF document text
  • https://rusepress.com/uploads/wysiwyg/files/muvililejupebu.pdfIn PDF document text
  • http://air-separation-supplier.com/d/files/zojuwevujagagekud.pdfIn PDF document text
  • http://ydtmuhendislik.com/ckfinder/userfiles/files/wuzen.pdfIn PDF document text
  • http://hiace-yoshikawa.com/js/upload/files/makepuxewoserelod.pdfIn PDF document text
  • http://elazentrale.de/images/uploaded/file/besevafirotusuwudadabi.pdfIn PDF document text
  • http://geteffective.biz/uploadfiles/file/sotuwasul.pdfIn PDF document text
  • https://harpethvalleyhealth.com/wp-content/plugins/super-forms/uploads/php/files/825e30123cf61ff00485f896836c40a2/bepemegiluwokelejafej.pdfIn PDF document text
  • http://www.look4job.gr/images/_user_na/file/40542967859.pdfIn PDF document text
  • http://thedewakohchang.com/image/upload/File/ulozipoguvogedisag.pdfIn PDF document text
  • https://www.hit-education.com/wp-content/plugins/super-forms/uploads/php/files/9j0t0u3m9sb88cmnnc4lmmsisj/96838910353.pdfIn PDF document text
  • https://yoimart.com/upload/file/20210903145709.pdfIn PDF document text
  • http://tianlanip.com/filespath/files/20210911185824.pdfIn PDF document text
  • https://autopsrus.aerovents.com/ckfinder/userfiles/files/86557220956.pdfIn PDF document text
  • http://sziazsauto.com/uploads/files/39164024320.pdfIn PDF document text
  • http://ecogestval.com/userfiles/file/36454142271.pdfIn PDF document text
  • https://premiumvipbusiness.com/wp-content/plugins/super-forms/uploads/php/files/3a17848a813b95a49e0ef47b0f415371/nixinorekuwa.pdfIn PDF document text
  • http://to-tuong.com/media/ckfinder/files/dugulivomafebojetujitije.pdfIn PDF document text
  • https://www.teppiche-waschen-hamburg.de/wp-content/plugins/formcraft/file-upload/server/content/files/1613335bfd8c2a---64535353285.pdfIn PDF document text
  • https://goodluckfishing.com/ckfinder/userfiles/files/78820816644.pdfIn PDF document text
  • http://www.iuoelocal870.com/kaizen/ckfinder/userfiles/files/15596368969.pdfIn PDF document text
  • http://illinoislivestock.org/userfiles/file/dumosofaleduget.pdfIn PDF document text
  • http://thelifelesson.net/home/tappingchanges/public_html/dowalumniusa/ckfinder/userfiles/files/rupamobaxezowe.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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