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://allytemp.ru/uplcv?utm_term=ss+textbook+pdf PDF link annotation

  • http://www.alliance-bio.com/user_data/editor/ckfinder/core/connector/php/upload/files/35110763816.pdfIn PDF document text
  • http://tostonet.cl/ckfinder/userfiles/files/kuxori.pdfIn PDF document text
  • http://cyc.cz/pictures/clanky/files/levetagawapudanatutiwo.pdfIn PDF document text
  • https://www.businesswatchguardingservices.co.uk/wp-content/plugins/super-forms/uploads/php/files/tm9uohe371l47jodurcpj85i06/17102483630.pdfIn PDF document text
  • http://wm-meyer.de/meyer/admin/editor/ckfinder/userfiles/files/14018010104.pdfIn PDF document text
  • http://oa30us.com/userfiles/file/42352786351.pdfIn PDF document text
  • https://bibonatura.com/ckfinder/userfiles/files/925648212.pdfIn PDF document text
  • https://ww150007.linebot.net/upfile/files/20210911175310.pdfIn PDF document text
  • http://irmascaritasdejesus.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/16141516e728e8---buguverasofub.pdfIn PDF document text
  • http://apexnepaltravel.com/userfiles/file/19807395545.pdfIn PDF document text
  • https://hazeloyun.com/calisma2/files/uploads/7152106191.pdfIn PDF document text
  • http://8njl.com/userfiles/files/jixififugalatavu.pdfIn PDF document text
  • http://shqinze.net/admin/upimg/file///fowadosenerufuniluzul.pdfIn PDF document text
  • http://edukoc.net/userData/ebizro_board/file/liludilufaxurivafugedox.pdfIn PDF document text
  • http://www.mtpartnersfl.com/wp-content/plugins/formcraft/file-upload/server/content/files/16132be356eabf---32391954986.pdfIn PDF document text
  • http://darangyi.com/userData/board/file/kotumimovin.pdfIn PDF document text
  • https://sapsda.org/SapmaUserfiles/file/19891089201.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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