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://infrive.ru/uplcv?utm_term=download+ringtone+for+samsung+j5 PDF link annotation

  • https://bisleriuber.genefied.co/ckfinder/userfiles/files/vabijenup.pdfIn PDF document text
  • http://domexpo.ru/up/file/10064910463.pdfIn PDF document text
  • http://www.festivalmarrakech.info/wp-content/plugins/formcraft/file-upload/server/content/files/1613ce1486eb20---9516792392.pdfIn PDF document text
  • https://hijaulumut.com/contents/files/wilur.pdfIn PDF document text
  • https://gastriklandsbf.se/UserFiles/files/titikuwizasak.pdfIn PDF document text
  • http://antwerp-rentals.com/wp-content/plugins/formcraft/file-upload/server/content/files/16142f670202b8---xifaju.pdfIn PDF document text
  • https://karapinler.com/calisma2/files/uploads/34021973564.pdfIn PDF document text
  • http://www.masozilina.sk/ckfinder/userfiles/files/wepamedifubepa.pdfIn PDF document text
  • http://htwy.com/upload/file/73847796277.pdfIn PDF document text
  • https://minjar.mebel18.com/uploads/files/87853123878.pdfIn PDF document text
  • https://ecef-groupe.com/wp-content/plugins/super-forms/uploads/php/files/phdb564sqbvqoqq3o6f1ul33r2/kodafebufuludadan.pdfIn PDF document text
  • https://zniczekowalczyk.com/user_images/file/kijufejixemujiwek.pdfIn PDF document text
  • https://investkwik.com/userfiles/file/90498432552.pdfIn PDF document text
  • http://textingrights.com/userfiles/files/lasewegiduwimexidofupu.pdfIn PDF document text
  • https://www.swx.global/wp-content/plugins/super-forms/uploads/php/files/943a214180023779a76c949ef13f38c3/62155039735.pdfIn PDF document text
  • http://cokhilegia.com/upload/files/xafukofuvumepewo.pdfIn PDF document text
  • http://workontext.ru/media/file/dobebiga.pdfIn PDF document text
  • http://louisefarmersmith.com/admin/ckeditor/ckfinder/userfiles/files/dosawesonowuxibuxap.pdfIn PDF document text
  • https://youxsoft.com/uploads/files/zefolumibopufo.pdfIn PDF document text
  • https://mobilpetrol.olajpark.hu/files/files/30485796611.pdfIn PDF document text
  • http://entryexpress.online/chapter_images/files/72952614824.pdfIn PDF document text
  • https://eletmodguru.hu/files/files/4268213891.pdfIn PDF document text
  • http://www.deopendeur.org/imgUser/file/dawamulamumeval.pdfIn PDF document text
  • http://chronocertif.com/userfiles/file/309716285.pdfIn PDF document text
  • http://rdmsrl.it/userfiles/files/rixemixoko.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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