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://inwebjor.ru/uplcv?utm_term=ielts+writing+task+1+answer+sheet+pdf+idp PDF link annotation

  • https://fmpride.com/wp-content/plugins/super-forms/uploads/php/files/ed182ab76fb740b2c71432d263f07dea/82961736505.pdfIn PDF document text
  • http://staging.impactredevelopment.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606fd82a4fcc2---badavatalezap.pdfIn PDF document text
  • https://www.seblocation.com/ckfinder/userfiles/files/58661406591.pdfIn PDF document text
  • http://we2meeting.com/ckfinder/userfiles/publics/files/72416233302.pdfIn PDF document text
  • https://www.auto-ecole-acm.com/ckfinder/userfiles/files/97571155180.pdfIn PDF document text
  • http://parzenica-bialka.pl/userfiles/files/56402193402.pdfIn PDF document text
  • https://cryptoshift.be/anaeter_capital/siteadmin/userfiles/files/tumopinopujini.pdfIn PDF document text
  • https://impariant-club.ru/wp-content/plugins/super-forms/uploads/php/files/17275b90db082db4e719076951ba8158/dazoletiwekafa.pdfIn PDF document text
  • http://automsystem.com/UploadFile/file/20210813055938754.pdfIn PDF document text
  • https://tucsonhomewindowtint.com/wp-content/plugins/super-forms/uploads/php/files/ec1e8cb6e6f715b48c0fa54420da07eb/49622013075.pdfIn PDF document text
  • https://wtmasonry.com/ckfinder/userfiles/files/pebemetojebekigisirox.pdfIn PDF document text
  • https://thepainter.asia/upload/files/mezuvajotafuzepezu.pdfIn PDF document text
  • http://habitat3.eu/userfiles/files/51463175552.pdfIn PDF document text
  • https://sketchup360.vn/wp-content/plugins/super-forms/uploads/php/files/4pntglgselbjv5fthsvo1v1b06/83967201860.pdfIn PDF document text
  • http://totaleclipsenv.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ad9ba2c6e71---juponibamiwiza.pdfIn PDF document text
  • http://objetivovender.com/wp-content/plugins/formcraft/file-upload/server/content/files/16072f5fc5173a---noterunusuxuletepuzo.pdfIn PDF document text
  • http://transcash.com/ci/userfiles/files/36360224352.pdfIn PDF document text
  • http://fortlauderdalelimorental.net/wp-content/plugins/formcraft/file-upload/server/content/files/1608098867bdec---25569816593.pdfIn PDF document text
  • https://www.cedicar.com/wp-content/plugins/formcraft/file-upload/server/content/files/160eca3df08cab---80638565354.pdfIn PDF document text
  • http://eltonltd.ru/sites/default/files/uploads/vobeketukixe.pdfIn PDF document text
  • https://www.grandiosa.is/wp-content/plugins/super-forms/uploads/php/files/kvjikmpouj3sto1qt1u707mp11/55349588341.pdfIn PDF document text
  • https://bistro-8.com/wp-content/plugins/super-forms/uploads/php/files/3d3f3fdc0c60d47644003c9d9d91c31e/xavob.pdfIn PDF document text
  • http://seanmore.com/userData/board/file/29209383482.pdfIn PDF document text
  • http://dptour.net/bot/ckfinder/uf/files/sigeg.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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