Malicious PDF — malware analysis report

Heuristics 7

• 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.
• 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 http://studionegro.net/userfiles/files/63915113065.pdf In PDF document text

  • http://teormech.ru/teormech/usrimg/file/94706310933.pdfIn PDF document text
  • http://theettiaresmontreal.com/clients/f/f0/f03dfc1790708d0b03c48e9879ef2ea6/File/gonovusawawadasif.pdfIn PDF document text
  • http://doks-films.com/pcms/content/file/6106327525.pdfIn PDF document text
  • http://dream-mebel.com/pic/file/nomudutabinabedebu.pdfIn PDF document text
  • http://chongqinghaohong.com/upload/files/31551229345.pdfIn PDF document text
  • http://ramseier-appenzell.ch/elrada/js/ckfinder/userfiles/files/66562084646.pdfIn PDF document text
  • https://www.web2business.pt/wp-content/plugins/formcraft/file-upload/server/content/files/1609b5d7eb8d3c---nodetokomujefixubekebepej.pdfIn PDF document text
  • http://paulsaperstein.com/userfiles/files/83117428752.pdfIn PDF document text
  • https://www.democratum.com/wp-content/plugins/super-forms/uploads/php/files/beacada1e4e08b42f63139d3f8ef8dd0/55715440139.pdfIn PDF document text
  • https://www.huaikrachaohospital.go.th/assets/global/lib/ckfinder/userfiles/files/xuxegomafabisopig.pdfIn PDF document text
  • http://abacusnancy.com/userfiles/file/65601685840.pdfIn PDF document text
  • http://abnicum.com/files/file/fuvadeludorurupakiwaset.pdfIn PDF document text
  • https://pilot-nav.com/ckfinder/userfiles/files/gapirejojoverejudaxezo.pdfIn PDF document text
  • http://asbufestival.com/uploads/FCK_files/file/wonupabazoreluzafewotiw.pdfIn PDF document text
  • https://erdenetpost.mn/userfiles/files/48052658523.pdfIn PDF document text
  • http://gopherandsquirrelcontrol.com/admin/images/file/7730244634.pdfIn PDF document text
  • http://tungalag.mn/userfiles/files/nigosi.pdfIn PDF document text
  • http://jurabos.nl/include/editor/file/64208218501.pdfIn PDF document text
  • http://sad-azov.ru/wp-content/plugins/super-forms/uploads/php/files/027b219fd75b6e30a0c3a76fc7b50055/tebenigilove.pdfIn PDF document text
  • http://crmrealty360degree.in/ci/userfiles/files/63816190212.pdfIn PDF document text
  • http://www.oschouston.com/osc/wp-content/plugins/formcraft/file-upload/server/content/files/1609c1e189f9ce---zajulejiwuvakilisobefe.pdfIn PDF document text
  • https://lawtutors.co.uk/js/ckfinder/userfiles/files/22717359358.pdfIn PDF document text
  • https://www.lumisolar.pe/wp-content/plugins/formcraft/file-upload/server/content/files/1607ae92de5bf6---23875632145.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/YTWXjIUwRh0/uplcv?utm_term=zk+sdk+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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