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.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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://synerhu.ru/uplcv?utm_term=cara+upgrade+android+kitkat+ke+marshmallow PDF link annotation

  • http://word.mn/uploads/assets/3770846999.pdfIn PDF document text
  • http://gyogytornasz.hu/editor_up/47224980844.pdfIn PDF document text
  • http://hiniceshine.com/upload/65151511786.pdfIn PDF document text
  • http://protok.pro/upload/files/dagogininitoruwolumixil.pdfIn PDF document text
  • http://plncse.hu/php_data/file/70253272502.pdfIn PDF document text
  • https://fond.ru/userfiles/file/39636185683.pdfIn PDF document text
  • https://diedacorporation.net/freesiafiles/file/xejadomeroxodu.pdfIn PDF document text
  • http://patanamachine.com/imgUpload/files/63339405783.pdfIn PDF document text
  • http://suportti.com/wp-content/plugins/formcraft/file-upload/server/content/files/16133b06449b7e---87997486563.pdfIn PDF document text
  • https://www.tzounakos-insurance.gr/ckfinder/userfiles/files/19250906986.pdfIn PDF document text
  • https://takarasushimn.com/userfiles/files/lelapabotojuxot.pdfIn PDF document text
  • https://blogsma.com/files/menevo.pdfIn PDF document text
  • http://trackeg.com/en/wp-content/plugins/formcraft/file-upload/server/content/files/161353a91268b4---xododevitofenir.pdfIn PDF document text
  • https://onlineadda.organicemall.com/ckfinder/userfiles/files/31052800511.pdfIn PDF document text
  • http://helloslow.com/data/userfiles/files/36865273130.pdfIn PDF document text
  • https://growmytruck.com/wp-content/plugins/super-forms/uploads/php/files/03d2ce0e17cab2f21f745d40c9def22b/83432875805.pdfIn PDF document text
  • http://kkagro.com/media/images/upload/file/9417058321.pdfIn PDF document text
  • https://bistro-8.com/wp-content/plugins/super-forms/uploads/php/files/b7d0d0b70da6525017608b21dddbbaab/10246850507.pdfIn PDF document text
  • https://libyamonitor.com/sites/all/libraries/ckfinder/userfiles/files/pexikita.pdfIn PDF document text
  • https://onderhoudnlgarantie.nl/upload/file/97333035042.pdfIn PDF document text
  • http://sakirnoopo.ru/wp-content/plugins/super-forms/uploads/php/files/75e19fd1b682e5246ffe91f339c48d24/sunajutawuwiwopibewamex.pdfIn PDF document text
  • http://simsvizag.com/admin/uploadedfiles/file///4697166345.pdfIn PDF document text
  • http://ssaisarang.com/ckfinder/userfiles/files/vizokux.pdfIn PDF document text
  • http://noithatnhapkhaugiasi.com/luutru/files/20463371137.pdfIn PDF document text
  • https://web-sila.ru/wp-content/plugins/super-forms/uploads/php/files/0e1c0d3311385f3db866449ddafe9863/62991277202.pdfIn PDF document text
  • http://www.saveurspoitoucharentes.com/admin/ckfinder/userfiles/files/boraripupesemujodovasov.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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