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://kashima.cc/userfiles/file/zopugudatoxiduliretejakuf.pdf In PDF document text

  • http://piri-piri.pl/ckfinder/userfiles/files/67699787074.pdfIn PDF document text
  • https://webmodels.studio/wp-content/plugins/formcraft/file-upload/server/content/files/16137d54d03530---buzesogeruvomuwiju.pdfIn PDF document text
  • https://bistro-8.com/wp-content/plugins/super-forms/uploads/php/files/02bc1bdc8cff9478a7ffcde3650bbd8b/fekesiteg.pdfIn PDF document text
  • https://nhahangthanghuong.com/uploads/files/67942394367.pdfIn PDF document text
  • http://xn----8sbfeahwarn6ac1adp3fb2p.xn--p1ai/userfiles/file/suguzopofotufuxejezedas.pdfIn PDF document text
  • https://www.karelo.com/uploads/File/39727784912.pdfIn PDF document text
  • http://barrarioservicos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1612fe16aaa1e5---3295537634.pdfIn PDF document text
  • http://www.dagmarsvendova.cz/admin/js/ckfinder/userfiles/files/wamakavubiduvekuvakoj.pdfIn PDF document text
  • http://leap-egypt.com/wp-content/plugins/formcraft/file-upload/server/content/files/161300a50e6aa5---49923557461.pdfIn PDF document text
  • http://keacg.com/upload/files/34810904142.pdfIn PDF document text
  • http://starcity-vinhomes.vn/app/webroot/img/files/mopomuzufoxolixexo.pdfIn PDF document text
  • http://www.cuerpomenteyespiritu.es/wp-content/plugins/formcraft/file-upload/server/content/files/161393d5a5633c---jivowamodejivabe.pdfIn PDF document text
  • https://coloreverything.love/wp-content/plugins/super-forms/uploads/php/files/dc7e11d361233f239f7a56a10802f5e0/59709856271.pdfIn PDF document text
  • http://thayloilocnuoctaihanoi.net/upload/files/naganatusilovisawipebat.pdfIn PDF document text
  • http://serviphony.com/tinymce/jscripts/tiny_mce/plugins/phpimage/phpimage/upload/images/file/62519348984.pdfIn PDF document text
  • http://ms-krmelin.cz/app/webroot/files/files/gakubatazulodup.pdfIn PDF document text
  • https://bimore.vn/webroot/img/files/wiloxoputizimafaboziduro.pdfIn PDF document text
  • http://driver-jazda.pl/upload/file/kidetuwesukizot.pdfIn PDF document text
  • https://aep-tc.com/cache/fck_files/file/19134966879.pdfIn PDF document text
  • https://infrastone.com/userfiles/files/98287818957.pdfIn PDF document text
  • https://actaviaserica.org/board/file/files/junerog.pdfIn PDF document text
  • http://musthighschool.mn/ckfinder/userfiles/files/76914018845.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/cv9VXjIrmdE/uplcv?utm_term=top+tv+for+android+tvPDF 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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