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://laborke.ru/uplcv?utm_term=chsl+2019+syllabus+pdf PDF link annotation

  • http://salon-urody-bellis.pl/images/file/wifipijesog.pdfIn PDF document text
  • https://cor.org.ar/wp-content/plugins/super-forms/uploads/php/files/i5pa1v3lm6rn064ufkj2nt0m4t/nikefigaxer.pdfIn PDF document text
  • http://yachtandgulet.com/userfiles/file/93541015981.pdfIn PDF document text
  • https://imapcb.org/wp-content/plugins/super-forms/uploads/php/files/1a01574c27e844e5e2c9ad5672bf4b50/69894293325.pdfIn PDF document text
  • https://damsindia.org/admin/uploads/file/sokudakade.pdfIn PDF document text
  • https://quickonboarding.com/wp-content/plugins/super-forms/uploads/php/files/6748b3a7eee93729ebf4a108fbe8230f/mutizoj.pdfIn PDF document text
  • https://stop-remont.ru/ckfinder/userfiles/files/5536586851.pdfIn PDF document text
  • https://clubslotalmatriche.com/calcas/file/51009753190.pdfIn PDF document text
  • http://glovimex.com/uploads/ckfinder/files/jopokuge.pdfIn PDF document text
  • http://bjhtdszdh.com/v15/Upload/file/2021627023296979.pdfIn PDF document text
  • https://csom.cz/wp-content/plugins/super-forms/uploads/php/files/ab68829ab1dc771d91fcca33723bb8d4/80959529221.pdfIn PDF document text
  • https://sygimportaciones.com/wp-content/plugins/super-forms/uploads/php/files/316ue8en0a0m32te3njubc9q4p/12960139299.pdfIn PDF document text
  • http://kotrackusa.com/fckedit_file/file///20210903_19_4_56.pdfIn PDF document text
  • http://markasib.ru/ckfinder/userfiles/files/mugarutusenegepag.pdfIn PDF document text
  • http://mijneigenlift.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1607e2c6d11b26---81752069807.pdfIn PDF document text
  • https://x-software.cz/data/file/86431342128.pdfIn PDF document text
  • http://ankaser.com/userfiles/file/48888724324.pdfIn PDF document text
  • http://www.asslar.de/downloads/vawizikavuludatefulusavem.pdfIn PDF document text
  • http://timatey.kz/wp-content/plugins/super-forms/uploads/php/files/l57jjfph2ac7j4t4l2pnan1at2/gurikani.pdfIn PDF document text
  • https://www.infratechgroep.nl/wp-content/plugins/super-forms/uploads/php/files/5658e4e906b42a3135b0dd2ad949bb32/23231292356.pdfIn PDF document text
  • https://solener.info/ckfinder/userfiles/files/retodokisub.pdfIn PDF document text
  • https://kuraniterbiye.com/resimler/files/kofigifonejafadi.pdfIn PDF document text
  • http://geotersrl.it/file/rukedafazasifisuve.pdfIn PDF document text
  • http://www.mywil.ch/wp-content/plugins/formcraft/file-upload/server/content/files/160a454f8838eb---felanopexaderuwobafobaki.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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