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 http://trungtinjsc.vn/upload/FCK/file/22323739091.pdf In PDF document text

  • http://dirpub.org/editor/ckfinder/userfiles/files/16483332703.pdfIn PDF document text
  • https://www.baptistenhardenberg.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1616521d3ae6c2---vivuxosinogufawosataxis.pdfIn PDF document text
  • https://portoggitter.no/content/files/userfiles/file///mozonovowejorunitatulex.pdfIn PDF document text
  • http://kingspec.su/wp-content/plugins/super-forms/uploads/php/files/mb5jrbnjg4s2hka26lnoubbdcl/lowib.pdfIn PDF document text
  • http://hmed.vn/upload/files/lemorufedij.pdfIn PDF document text
  • https://mayphoviet.com/media/ftp/file/zidujesisefezuzosevupo.pdfIn PDF document text
  • http://ng-sons.com/userfiles/file/naranarepuzedumese.pdfIn PDF document text
  • https://microfocus-realize2020mea.com/wp-content/plugins/super-forms/uploads/php/files/649716c914bf89f77424642ca3bb3785/76776381887.pdfIn PDF document text
  • https://angel-juicer.com/FileData/ckfinder/files/20210905_7B80976A5CEA33E4.pdfIn PDF document text
  • http://cleangroupbd.com/ck/upload/files/91193830890.pdfIn PDF document text
  • http://gptools.net/userfiles/file/6716665379.pdfIn PDF document text
  • https://girisimhaber.com/uploads/file/lizejuko.pdfIn PDF document text
  • https://accesoriosalmayor.com/images/userfiles/file/sadiju.pdfIn PDF document text
  • https://aiwcecckolkata.org/FCKeditor/file/zevaga.pdfIn PDF document text
  • https://chaletsuenodesol.de/files/doloterovukasuro.pdfIn PDF document text
  • http://casaledellasignora.it/userfiles/files/9854609395.pdfIn PDF document text
  • http://dinhvi5s.com/images/newtech/files/wozenepoxoxed.pdfIn PDF document text
  • http://cassotech.nl/site/data/ws/files/11559999368.pdfIn PDF document text
  • http://sibzakon.ru/ckfinder/userfiles/files/63767202677.pdfIn PDF document text
  • http://feedproxy.google.com/~r/Xvkpad/~3/RhDyTiV0TgQ/uplcv?utm_term=golden+guide+for+class+10+social+science+cbse+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 extracted file (font_00_sfnt_off0000be6b.bin)
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000be6b.bin)

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