Malicious PDF — malware analysis report

Heuristics 8

• 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.
• 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 http://sakem.org/userfiles/files/60355224214.pdf In PDF document text

  • http://shyjjc.com/v15/Upload/file/202192325392028.pdfIn PDF document text
  • https://aiwcecckolkata.org/FCKeditor/file/55237014442.pdfIn PDF document text
  • http://madmojo.com/fckupload/file/53949491994.pdfIn PDF document text
  • http://wahluenfty.com/userfiles/xevofutiworalivizunut.pdfIn PDF document text
  • https://value.ae/userfiles/file/gizodivaxibonetaxelaxu.pdfIn PDF document text
  • https://velvetskin.pl/wp-content/plugins/super-forms/uploads/php/files/ddd1fa4ee4019186c2c80b2fe35bb151/kizuporiv.pdfIn PDF document text
  • http://daimarconstrucciones.com/images/admin/file/5390732190.pdfIn PDF document text
  • http://toanthinh.vn/webroot/img/files/jupikubulenipexed.pdfIn PDF document text
  • http://www.lbf-cosmetics.com/website/wp-content/plugins/formcraft/file-upload/server/content/files/16140703ae59be---2989062578.pdfIn PDF document text
  • https://semineebrasov.ro/printuri-fi/files/57373257599.pdfIn PDF document text
  • https://hmjrgoldhockey.org/wp-content/plugins/super-forms/uploads/php/files/d62b8128a9e753b8003d0b8d366d6b25/pitatul.pdfIn PDF document text
  • https://goez3.com/10005001208290177/ckfinder/userfiles/files/teluwusowuzifezusipon.pdfIn PDF document text
  • https://aptitudeclass.com/ckfinder/userfiles/files/putifudag.pdfIn PDF document text
  • http://www.inhd.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1613d8e8f32a53---tegakevemag.pdfIn PDF document text
  • https://pcetravel.com/files/file/79861676371.pdfIn PDF document text
  • http://4rrecycle.com/files/file/68340446926.pdfIn PDF document text
  • http://snookerfootball.eu/wp-content/plugins/formcraft/file-upload/server/content/files/1613bdd1c6685e---38434460660.pdfIn PDF document text
  • http://agierresrl.it/userfiles/files/12067578719.pdfIn PDF document text
  • http://www.creativitaecomunicazione.it/js/lib/ckfinder/userfiles/files/77011941247.pdfIn PDF document text
  • http://test.uebersetzungen-nesselberger.de/wp-content/plugins/formcraft/file-upload/server/content/files/1613f3a2535392---sezedobikolivuded.pdfIn PDF document text
  • https://www.mclarenpress.com/wp-content/plugins/formcraft/file-upload/server/content/files/161393ea8ba9a1---52083311772.pdfIn PDF document text
  • http://arucax.am/user_images/file/46878148029.pdfIn PDF document text
  • http://centralcogtc.com/uploads/file/gokamituxunuvudovusis.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/PmAiG5ZyT-k/uplcv?utm_term=sound+booster+android+apkPDF 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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