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 https://queure.ru/uplcv?utm_term=class+7+science+lesson+8+question+answer PDF link annotation

  • http://karunb.com/UpLoads/files/wetubosutimuposif.pdfIn PDF document text
  • https://relleno-acidohialuronico.com/wp-content/plugins/super-forms/uploads/php/files/6bac8d7627ee18cca0aa2c4f52847b14/45395674803.pdfIn PDF document text
  • http://mikailang.net/userfiles/file/20210626034303_1160380806.pdfIn PDF document text
  • http://brickform.cz/obrazky/files/35113802144.pdfIn PDF document text
  • https://ooo-kenk.ru/userfiles/file/85334469208.pdfIn PDF document text
  • http://www.morenoroofing.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607683b18da74---lisemebi.pdfIn PDF document text
  • https://pnp-studio.com/fckeditorfiles/file/lujibupulolujasob.pdfIn PDF document text
  • https://dongytueduc.com/wp-content/plugins/super-forms/uploads/php/files/ffmg1n4lphhhsn0hpeum5a1497/35477910550.pdfIn PDF document text
  • http://thedreaminitiative.org/Content/Admin/uploads/files/kodijosis.pdfIn PDF document text
  • http://xn--80adpfaaeictf0c6c7i.xn--p1ai/public/file/mivabivefujudovutofofug.pdfIn PDF document text
  • http://elonsummerstorage.com/wp-content/plugins/formcraft/file-upload/server/content/files/16074fdbbd8a26---lesewidapupeduvus.pdfIn PDF document text
  • http://www.highlandmetals.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160bd487d73d05---molulipele.pdfIn PDF document text
  • https://bajrahrs.com/userfiles/file/ligavorowidej.pdfIn PDF document text
  • http://hokkaido-love87.com/app/webroot/js/ckfinder/userfiles/files/79748915333.pdfIn PDF document text
  • https://home18.ru/wp-content/plugins/super-forms/uploads/php/files/faf0c1308a3dff84e26c51476b979ca1/xexitaw.pdfIn PDF document text
  • https://alteanetworks.fr/img/file/gamafelonokajor.pdfIn PDF document text
  • https://agrachoff.ru/wp-content/plugins/super-forms/uploads/php/files/5ff6a1c595d97ee88fa6c94df4c588df/pulapuxerapuz.pdfIn PDF document text
  • http://escolacaritas.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a91d8d4b38f---32761455124.pdfIn PDF document text
  • https://bompentax.com/quangbasanpham/app/webroot/upload/image/files/novun.pdfIn PDF document text
  • http://abwsalisbury.com/uploads/files/60473811398.pdfIn PDF document text
  • https://www.certificagreen.com/wp-content/plugins/formcraft/file-upload/server/content/files/16114296ed4006---wevegalezuga.pdfIn PDF document text
  • https://graveyards-fuj.ae/userfiles/files/49100094923.pdfIn PDF document text
  • http://kashima.cc/userfiles/file/tirepefoluguzafexideg.pdfIn PDF document text
  • http://eldorautomaticgates.com/UserFiles/file/nunorimejolakawore.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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