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://chcial.ru/uplcv?utm_term=unlimited+free+spins+on+coin+master PDF link annotation

  • http://kennyre.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b2e21b55cd9---97589200403.pdfIn PDF document text
  • https://autotrilogy.com/wp-content/plugins/super-forms/uploads/php/files/eb7298fe2c31518851a161105629775a/putofeliru.pdfIn PDF document text
  • https://adbetelparaguay.com/wp-content/plugins/super-forms/uploads/php/files/07cd67cb65d3a9e961bd698578e767ca/rutakurudosexorupu.pdfIn PDF document text
  • https://realwebguys.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bb5dd92d0f3---70043886474.pdfIn PDF document text
  • http://montpellier-business-plan.fr/mbp/upload/images/images/upload/ckfinder/76308924214.pdfIn PDF document text
  • http://mg001.cn/upload_fck/file/2021-6-13/20210613162350894985.pdfIn PDF document text
  • http://beateromer.com/bilder/file/budaxonewuzoru.pdfIn PDF document text
  • http://www.colormotion.cz/UserFiles/file/nodutagilobupadev.pdfIn PDF document text
  • http://andreagarciam.com/wp-content/plugins/formcraft/file-upload/server/content/files/16083f87393e87---mojebawaderilanifokenu.pdfIn PDF document text
  • http://tamlaproject.com/userData/board/file/69958380543.pdfIn PDF document text
  • https://avantkart.com/wp-content/plugins/super-forms/uploads/php/files/04l7qhh72s43d3p6nlker9sqm1/berawukavukepojol.pdfIn PDF document text
  • http://rehahomecare.com/upload/editor/files/surusilobadusikatuwef.pdfIn PDF document text
  • https://soalmatematik.com/userfiles/file/69938598099.pdfIn PDF document text
  • http://www.circoloaletrium.it/wp-content/plugins/formcraft/file-upload/server/content/files/160b1b8db0e6e6---mukururulefaxugaxomi.pdfIn PDF document text
  • https://rieker-consulting.eu/files/file/nuwerugudebux.pdfIn PDF document text
  • http://www.asslar.de/downloads/20807132825.pdfIn PDF document text
  • https://www.mclarenpress.com/wp-content/plugins/formcraft/file-upload/server/content/files/16085417b9b0b6---46410203874.pdfIn PDF document text
  • http://ed-web.cz/userfilesfile/49118590162.pdfIn PDF document text
  • http://www.hj-bouwt.be/wp-content/plugins/formcraft/file-upload/server/content/files/160a2757d5f923---28831545167.pdfIn PDF document text
  • https://hcs1000.org/wp-content/plugins/super-forms/uploads/php/files/67e2ac42c972d3e7f185d0825f069f03/46829988907.pdfIn PDF document text
  • https://unicorn.mn/js/ckfinder/userfiles/files/99017329071.pdfIn PDF document text
  • http://www.orhancoskun.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d43b1e455d---wetumakerol.pdfIn PDF document text
  • https://www.etbsupplies.com/wp-content/plugins/formcraft/file-upload/server/content/files/16078f0841b236---tuvimidobagefuvex.pdfIn PDF document text
  • https://casabresciani.it/uploads/file/73814117180.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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