Malicious PDF — malware analysis report

Heuristics 6

• 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.
• 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://dungcuruamui.com/wp-content/plugins/super-forms/uploads/php/files/lgch11taolvncn4qi4c4pvoks7/vuravadadiwogikajin.pdf In PDF document text

  • http://aaaexpressac.com/userfiles/file/tezogeduxudo.pdfIn PDF document text
  • https://homini.eu/wp-content/plugins/formcraft/file-upload/server/content/files/1608528234b92b---jajivuzanivu.pdfIn PDF document text
  • https://www.msolartop.cz/wp-content/plugins/formcraft/file-upload/server/content/files/1608913e0b3514---92724607614.pdfIn PDF document text
  • https://cffcommunications.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1/1609ff3e64f8ce---tafabenujo.pdfIn PDF document text
  • https://www.ideakliniksisli.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ad8406ab3b9---togutipan.pdfIn PDF document text
  • https://memoservicesrl.it/file/megokajavures.pdfIn PDF document text
  • http://nd-58.ru/wp-content/plugins/super-forms/uploads/php/files/6b92fa347870430e3c0a7b4cef651577/43541561753.pdfIn PDF document text
  • https://noks.cz/wp-content/plugins/formcraft/file-upload/server/content/files/160b7edc6a6e09---tabobubuzijevamiz.pdfIn PDF document text
  • http://travelsi.ru/ckfinder/userfiles/files/gonexavokugozezedoni.pdfIn PDF document text
  • http://jncs.kr/page_data/file/20210611215247.pdfIn PDF document text
  • https://couvreur-hautdoubs.fr/internet_new/images_et_fichiers//file/20644834413.pdfIn PDF document text
  • https://digireg.ch/upload/xokovudogasinofiparani.pdfIn PDF document text
  • http://mnogonomerov.ru/uploads/file/10074582809.pdfIn PDF document text
  • http://metabolit-plus.ru/files/file/pobarobepajagexaxuxel.pdfIn PDF document text
  • https://www.finestkindcharter.com/wp-content/plugins/formcraft/file-upload/server/content/files/160983655c0e03---19573561376.pdfIn PDF document text
  • https://transport-vehicules.fr/userfiles/file/50175384566.pdfIn PDF document text
  • https://kaowei.tw/image/files/20210701_194632.pdfIn PDF document text
  • http://kystop.com/wp-content/plugins/super-forms/uploads/php/files/qibddrbv28kuhejp5ji7nvt656/xinasutigigepolobogud.pdfIn PDF document text
  • https://www.reachcast.ca/wp-content/plugins/super-forms/uploads/php/files/9c2b1879bf95896659a755727ae57c45/88602091772.pdfIn PDF document text
  • http://www.serenissimaservizi.com//files/77187806056.pdfIn PDF document text
  • http://aeskulap24h.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d1d175cd2a0---22404418571.pdfIn PDF document text
  • http://elhammagazine.com/ckfinder/userfiles/files/fasokifireze.pdfIn PDF document text
  • http://www.radioemka.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e70efa0d8bd---pudufosugemubaburuvazile.pdfIn PDF document text
  • https://www.colegiodesafio.net/home/wp-content/plugins/formcraft/file-upload/server/content/files/1609e05f8497e3---luzubefelewobuxenukagap.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/A3Ryygt5BCM/uplcv?utm_term=numerical+reasoning+test+tips+and+tricks+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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