Malicious PDF — malware analysis report

Heuristics 8

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
  PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
• 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=galaxy+note+10.1+custom+rom PDF link annotation

  • http://fjzy18.com/image/uload/files/91716840758.pdfIn PDF document text
  • https://hoongnau.com/upload/files/botiporipevileg.pdfIn PDF document text
  • https://apartmani-mestrovic-krk.hr/files/52892941551.pdfIn PDF document text
  • https://hirurgija.me/files/zelajaxesozumuvivodivaza.pdfIn PDF document text
  • http://musicpark-live.de/userfiles/file/3573975788.pdfIn PDF document text
  • http://www.miamiairportlimo.net/wp-content/plugins/formcraft/file-upload/server/content/files/1613b7e8b07134---38472733630.pdfIn PDF document text
  • http://ambulatorioveterinarioscapindandrea.it/userfiles/files/tamab.pdfIn PDF document text
  • https://laxmigrouppune.com/wp-content/plugins/super-forms/uploads/php/files/c8ab52a4e653adf70c6c44149c872571/86976407225.pdfIn PDF document text
  • https://stratasphere.online/userfiles/file/faxoda.pdfIn PDF document text
  • http://www.sunarozlem.com.tr/wp-content/plugins/super-forms/uploads/php/files/no4n5rvqga1itlgdo2l7pma692/3848774200.pdfIn PDF document text
  • https://eetravel.net/file/wosatorexedunapu.pdfIn PDF document text
  • http://fsgpj.com/upfolder/e/files/20210902071831.pdfIn PDF document text
  • http://taiwangallant.com/uploads/files/202109140652499571.pdfIn PDF document text
  • https://trainova.com/userfiles/file/tikaganesi.pdfIn PDF document text
  • http://medicamarsala.it/userfiles/files/50510339788.pdfIn PDF document text
  • https://venusnvs.com/userfiles/file/77779016832.pdfIn PDF document text
  • http://digitalqwerty.com/ckfinder/userfiles/files/42461696325.pdfIn PDF document text
  • http://dymenahealthcare.com/upload/fckeditor/file/2924013206.pdfIn PDF document text
  • http://www.hangmandigital.com/files/file/91593530474.pdfIn PDF document text
  • http://envisystem.com/upload/userfile/files/dakawakimiwo.pdfIn PDF document text
  • https://bhandarisurgical.com/ckfinder/userfiles/files/39579385996.pdfIn PDF document text
  • http://steelfurniturecn.com/d/files/92502400396.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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