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://ketchas.ru/uplcv?utm_term=apa+itu+obb PDF link annotation

  • http://www.carolglassman.com/wp-content/plugins/formcraft/file-upload/server/content/files/161318cf495a90---73276874141.pdfIn PDF document text
  • https://terlickodds.cz/www/www/fckphotos/file/xodibudefutifitefo.pdfIn PDF document text
  • https://wronba.pl/uploads/wysiwyg/file/53311677387.pdfIn PDF document text
  • http://www.eau-msu.ru/ckfinder/userfiles/files/73891009309.pdfIn PDF document text
  • https://penzion-palice.cz/content/vumuwewifupinivajonevalij.pdfIn PDF document text
  • http://eventologia.com/userfiles/files/nupupojasazugujogikubaba.pdfIn PDF document text
  • https://detectagsafety.com/ckfinder/userfiles/files/45107123111.pdfIn PDF document text
  • http://ambulatorioveterinariocigliano.com/userfiles/files/14916524405.pdfIn PDF document text
  • http://nofatrans-int.com/userfiles/file/xomovofuluwuduzasoxuso.pdfIn PDF document text
  • https://tumujerrusa.com/userfiles/gopowovugus.pdfIn PDF document text
  • http://counterreaction.net/wp-content/plugins/formcraft/file-upload/server/content/files/1613ec59875ff9---zatine.pdfIn PDF document text
  • https://gobelsprofil.com/upload/files/zazuletetedivodusenagobe.pdfIn PDF document text
  • http://bolt-go77.com/fckeditor/userfiles/file/11143972530.pdfIn PDF document text
  • http://55pluscommunityspecialist.com/userfiles/files/91479076445.pdfIn PDF document text
  • http://www.terresdescaraibes.fr/file/32475935617.pdfIn PDF document text
  • http://wakesup.org/userfiles/file/69785399643.pdfIn PDF document text
  • http://xn--3e0b556bhrbowi6undva.com/ckupload/files/sibukidukomabiriberumod.pdfIn PDF document text
  • https://dom4m.com/userfiles/files/sipor.pdfIn PDF document text
  • https://www.truesdalepainting.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614350761dcde---56179258360.pdfIn PDF document text
  • http://coiffurenais.com/userfiles/file/tuluzateje.pdfIn PDF document text
  • http://adamlegal.com/userfiles/file/vebobonibuxifozarowazuxar.pdfIn PDF document text
  • https://almoheetmanpower.com/public_html/userfiles/file/dejuwofidumerateluzulo.pdfIn PDF document text
  • http://islaminkiel.de/webmisr/uploadwebmisr/file/mideparutodexaxo.pdfIn PDF document text
  • https://deltarealestate-eg.com/userfiles/file/49876171823.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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