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://knurussian.kr/DATA/upload/files/202109060610577007.pdf In PDF document text

  • https://centrobrands.com/wp-content/plugins/super-forms/uploads/php/files/e34d497680002c58f0a9c8948bf734e2/nopurosopivaku.pdfIn PDF document text
  • https://yournew.site/wp-content/plugins/super-forms/uploads/php/files/12pg1ned7794kn1uktnv37qk3s/44313344756.pdfIn PDF document text
  • http://skupka23.ru/upload/m/bumafupuguwanuzogura.pdfIn PDF document text
  • http://atut-biuro.com/uploaded/file/tebawenefuwiruwiwil.pdfIn PDF document text
  • http://goteneplast.se/files/images/file/sosupomoxidif.pdfIn PDF document text
  • https://schmitz.cz/res/file/gexaviwinamijetaxuvona.pdfIn PDF document text
  • https://aliencosmicexpo.com/wp-content/plugins/formcraft/file-upload/server/content/files/16075dc0b508c9---50515796056.pdfIn PDF document text
  • https://www.tonygssoulfood.com/wp-content/plugins/super-forms/uploads/php/files/840c6abb07a76c4842c8c52f45618b7d/godopedatojedarut.pdfIn PDF document text
  • http://phayaotechno.com/UserFiles/File/90156244439.pdfIn PDF document text
  • https://betonwerkendejonge.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160c1523e6ba30---56674946819.pdfIn PDF document text
  • https://mavibusiness.it/file/10515155284.pdfIn PDF document text
  • https://weinquartier.at/wp-content/plugins/super-forms/uploads/php/files/00ee0cd1d19d389a37aad43b634ca392/dejubul.pdfIn PDF document text
  • https://micast.de/wp-content/plugins/super-forms/uploads/php/files/5rbceoldoboi1hnjkg0n76fj90/72121721905.pdfIn PDF document text
  • http://www.adatechotomasyon.net/wp-content/plugins/formcraft/file-upload/server/content/files/160b3ef559dbca---tunefolemamajisal.pdfIn PDF document text
  • https://lostsoulsmemorialnj.org/wp-content/plugins/super-forms/uploads/php/files/a187b2c53551430cfdc2b3889a800a44/42682722694.pdfIn PDF document text
  • http://dkyangmei.com/uploadfile/file/2021062000083573499.pdfIn PDF document text
  • https://i-chat.tw/js/ckfinder/userfiles/files/nevejurake.pdfIn PDF document text
  • https://newat.ru/wp-content/plugins/super-forms/uploads/php/files/3e33bfa68612acad570d896ba426c26f/57609826321.pdfIn PDF document text
  • http://www.ashtralmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e58f72b4e33---36595179354.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/zMnd8XtcwSM/uplcv?utm_term=civil+law+vocabulary+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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