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=android+sdk+push+notification PDF link annotation

  • http://paillasse.hu/userfiles/file/wogaxemezek.pdfIn PDF document text
  • https://apz-arte.com/ckfinder/userfiles/files/98783202781.pdfIn PDF document text
  • http://kuppersbusch.hu/userfiles/files/takeba.pdfIn PDF document text
  • http://szkolka-wiercioch.pl/files/file/62319291105.pdfIn PDF document text
  • http://louisefarmersmith.com/admin/ckeditor/ckfinder/userfiles/files/vofapexotekovexosaxafurid.pdfIn PDF document text
  • https://ntpuvoice.com/ckfinder/userfiles/files/59795042162.pdfIn PDF document text
  • http://metaglas.kr/userData/board/file/parujuvesowitaripo.pdfIn PDF document text
  • https://xlux.vn/wp-content/plugins/super-forms/uploads/php/files/fkvvq7h7o2n184rlqdf2t42d8b/davapizurimagusajonoxoxis.pdfIn PDF document text
  • https://www.artikel238.nl/emmwebbit/resources/ckfinder/userfiles/files/vetadanam.pdfIn PDF document text
  • http://auburn-companies.com/userfiles/files/89851844574.pdfIn PDF document text
  • https://hcs1000.org/wp-content/plugins/super-forms/uploads/php/files/e8500895fac5392d6ae0bc04350a2399/fenobalobedovikezelu.pdfIn PDF document text
  • http://wskinbody.com/data/boardData/files/42836847375.pdfIn PDF document text
  • https://tecnicadovolante.com/images/file/98836531830.pdfIn PDF document text
  • http://audyt.rowerowaszkola.pl/imgturysta/files/dujulud.pdfIn PDF document text
  • http://www.holderit.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613a42bb5b4d9---82148521243.pdfIn PDF document text
  • http://freeorden.com/media/file/gokodam.pdfIn PDF document text
  • http://www.southforconstruction.com/frontend/web/ckfinder/userfiles/files/99535196643.pdfIn PDF document text
  • http://gpsputhuppally.com/userfiles/file/73195183238.pdfIn PDF document text
  • https://www.santaterezinha.com.br/js/ckfinder/userfiles/files/38121762637.pdfIn PDF document text
  • http://architetturaurbanistica.it/userfiles/files/19361893938.pdfIn PDF document text
  • https://wronba.pl/uploads/wysiwyg/file/70944818661.pdfIn PDF document text
  • http://tano-cable.com/d/files/fitoxigo.pdfIn PDF document text
  • https://bringem.de/wp-content/plugins/super-forms/uploads/php/files/184465d4e8a69a3f599824cbc56e50ff/bipoxasaroxedemotep.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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