Malicious PDF — malware analysis report

Heuristics 6

• 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.
• 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://queure.ru/uplcv?utm_term=arithmetic+micro+operations PDF link annotation

  • http://www.guaitoli.eng.br/wp-content/plugins/formcraft/file-upload/server/content/files/160d8b5648b94d---1855152745.pdfIn PDF document text
  • https://www.avenueroadadvertising.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e501e538171---buririjek.pdfIn PDF document text
  • http://panyuchen.com/ckfinder/userfiles/site_eachfun_com/files/62556393089.pdfIn PDF document text
  • http://szao-spb.ru/images/news/file/55949981407.pdfIn PDF document text
  • https://www.domaine-boussard-chablis.fr/ckfinder/userfiles/files/xozugaxuwusij.pdfIn PDF document text
  • https://angkorphotographyguide.com/userfiles/file/dowununibulusux.pdfIn PDF document text
  • http://lapawan15.com/shop/fck_file/file/1529153539.pdfIn PDF document text
  • http://www.hypnotiseur.com/wp-content/plugins/formcraft/file-upload/server/content/files/160817ffe3b498---pobusezusugosejuxab.pdfIn PDF document text
  • http://ttlengenharia.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160710949cbfe1---89556676368.pdfIn PDF document text
  • http://stopasbestos.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160d272017c599---78212261316.pdfIn PDF document text
  • http://cadeco.com/testingsites/advantage_aviation/assets/media/file/zobezer.pdfIn PDF document text
  • http://pck.malopolska.pl/wp-content/plugins/super-forms/uploads/php/files/5f52c5b6c509eac13e7877be561422a3/70119197188.pdfIn PDF document text
  • http://www.unidacardoso.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607823b58fa88---8370506827.pdfIn PDF document text
  • https://paloaltospeakerseries.com/wp-content/plugins/super-forms/uploads/php/files/fef76540a97cc8b9133cbc716838d833/mutawatuzatodemerudijaj.pdfIn PDF document text
  • http://naturabliskociebie.pl/userfiles/file/79431676394.pdfIn PDF document text
  • https://acp-luxusingatlanok.hu/ckfinder/userfiles/files/jafififurapuzafinebeb.pdfIn PDF document text
  • http://casavacanzesanvito.eu/userfiles/files/rolatevuxibasaned.pdfIn PDF document text
  • https://beautifullifeuk.com/wp-content/plugins/super-forms/uploads/php/files/265cec992cde0096e6203298947ad64b/77330869037.pdfIn PDF document text
  • https://1sis.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609eb7ef9698c---96716573003.pdfIn PDF document text
  • https://www.cfo-search.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b5e66c906ff---21341691298.pdfIn PDF document text
  • http://mfplus.ba/wp-content/plugins/formcraft/file-upload/server/content/files/16076812dafba2---91330842424.pdfIn PDF document text
  • http://nikacarpet.com/My_Project/Hamishe_bahar/ahar_img/files/29946116902.pdfIn PDF document text
  • http://murphysbeads.com/clients/54316/File/56662597768.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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