Malicious PDF — malware analysis report

Heuristics 9

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
  PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 68 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
• 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.
• QR-code redirect lure medium SE_QR_LURE
  Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
• 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.
• 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://cructi.ru/uplcv?utm_term=good+camera+apk PDF link annotation

  • http://achilleferolla.it/userfiles/files/48490792337.pdfIn PDF document text
  • http://pcccmiennam.com/media/ftp/file/62449320248.pdfIn PDF document text
  • http://theofficefurniturestore.com/ckfinder/userfiles/files/biwibotutixixeg.pdfIn PDF document text
  • http://technimexvn.com/images/ckeditor/files/65349626999.pdfIn PDF document text
  • http://fence-alarm.com/userfiles/files/gadaxekoboguzeriku.pdfIn PDF document text
  • http://evaemlak.com/userfiles/file///73344230236.pdfIn PDF document text
  • https://limpiezasinasel.com/userfiles/files/77746444606.pdfIn PDF document text
  • https://briljant-maleri.se/UserFiles/files/bebumegadamukaxuwidep.pdfIn PDF document text
  • https://kaimano.it/file/givurutive.pdfIn PDF document text
  • https://www.auto-ecole-acm.com/ckfinder/userfiles/files/35040122929.pdfIn PDF document text
  • https://italvaping.com/file/66998845234.pdfIn PDF document text
  • http://vindindex.nl/images/uploads/79467958802.pdfIn PDF document text
  • http://www.patricktennis.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1613deb644873f---76131806500.pdfIn PDF document text
  • http://ucinnovation.ru/admin/ckfinder/userfiles/files/47761743671.pdfIn PDF document text
  • https://ystechpro.com/nbloom/fckuploads/file/ruseselotakisero.pdfIn PDF document text
  • http://akgwealthplanner.com/crm/files/nafefenotetalafabi.pdfIn PDF document text
  • http://combatkuntao.com/ckeditor/ckfinder/userfiles/files/171388552.pdfIn PDF document text
  • https://sf-tfi-pgu.uz/wp-content/plugins/super-forms/uploads/php/files/12e90d8a934a1ecd253e9364a810506c/65023800051.pdfIn PDF document text
  • http://sinoscaform.com/upload/ckimg/files/202109021051412204.pdfIn PDF document text
  • https://lightupalife.org.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1614943c5a003e---49064512632.pdfIn PDF document text
  • https://hexema.com/FCKeditor/file/20052927639.pdfIn PDF document text
  • https://allianztc.ro/files/file/91208140781.pdfIn PDF document text
  • https://highfieldhousehotel.net/nbloom/fckuploads/file/40173066828.pdfIn PDF document text
  • https://www.assessment.unibe.ch/app/webroot/js/ckfinder/userfiles/files/tosoxobixazusuduwutod.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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