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://tamtam.com.ua/wp-content/plugins/super-forms/uploads/php/files/7e5ab855677977c14f96628c166d1c43/vojinuzofosik.pdf In PDF document text

  • http://puzynowska-kancelaria.com/userfiles/file/95064253597.pdfIn PDF document text
  • http://fabrykakonwersji.pl/wp-content/plugins/super-forms/uploads/php/files/b46242313814320f3b51cf14aae44a15/turezo.pdfIn PDF document text
  • https://baohohoanglong.com/userfiles/file/42490591941.pdfIn PDF document text
  • http://snsi.jp/image/news_file/sikujugidonule.pdfIn PDF document text
  • https://europartner2.pl/uploads/673367511.pdfIn PDF document text
  • http://sciencevier.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c895ff4996e---17414915549.pdfIn PDF document text
  • http://martom24.pl/martom/userfiles/file/36702038400.pdfIn PDF document text
  • http://seabeachthailand.com/UserFiles/file/20895250757.pdfIn PDF document text
  • https://ecomassage.pt/wp-content/plugins/super-forms/uploads/php/files/1j63q32d1scva7qkrgepolg63l/20382387756.pdfIn PDF document text
  • https://www.enterpriselighting.com/wp-content/plugins/super-forms/uploads/php/files/4498c09dfbd7c3d16ca57d274eb359dc/meziwexepizoxawekevu.pdfIn PDF document text
  • https://www.justgym.co.za/wp-content/plugins/super-forms/uploads/php/files/ahhuc2p8r5q86edjqkco96q0mr/debixinogadelasidenegop.pdfIn PDF document text
  • http://woonhuislift.info/wp-content/plugins/formcraft/file-upload/server/content/files/160abe8194ec6b---tadiratomupadufon.pdfIn PDF document text
  • http://gerocuki.hu/user/file/mufapibemipotolulomapig.pdfIn PDF document text
  • https://doganagolosa.it/file/94426660739.pdfIn PDF document text
  • https://nilsahost.com/calisma2/files/uploads/38778090619.pdfIn PDF document text
  • https://selectwifi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607eac110d7fb---ripukimasawat.pdfIn PDF document text
  • http://www.nbrownies.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1608c8b0af241a---mufuzorodesadu.pdfIn PDF document text
  • http://hasici-pristroje-eshop.cz/files/file/45458991236.pdfIn PDF document text
  • https://arerp.kr/data/file///97927072719.pdfIn PDF document text
  • http://dianacb.cz/userfiles/file/taratumiladana.pdfIn PDF document text
  • http://gzky.cn/dubeite/ckfinder/userfiles/files/20210619_181511.pdfIn PDF document text
  • http://www.naturapreserved.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bcda64c0ba8---18995526952.pdfIn PDF document text
  • http://uniondeautoescuelas.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b9fb9e1401d---69054929521.pdfIn PDF document text
  • http://southportrubbish.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a04512826f7---dibudugij.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/BkSY9tpko7c/uplcv?utm_term=applying+linear+systems+in+the+real+worldPDF 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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