Malicious PDF — malware analysis report

Heuristics 8

• 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 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://faktxeber.ru/resimler/files/26066553440.pdf In PDF document text

  • http://www.nanodrywash.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c7bd1b69707---siditiwijaxunabiguvo.pdfIn PDF document text
  • http://pokorny-podlahy.cz/UserFiles/File/lajemudabaxovimorudakagak.pdfIn PDF document text
  • http://demkapi.com/resimler/files/lofotomubonemo.pdfIn PDF document text
  • https://vientangluc.com/upload/files/jitizibotalekeligilef.pdfIn PDF document text
  • https://alatheir.com/atheirwsfiles/file/91296244040.pdfIn PDF document text
  • http://anthonyvienna.com/sites/default/files/file/69070735681.pdfIn PDF document text
  • http://dj-maily.com/uploads/pages/files/762810355.pdfIn PDF document text
  • http://reszke.pl/fckeditor/editor/filemanager/connectors/php/file/76782113528.pdfIn PDF document text
  • http://revize-elektro.info/UserFiles/File/27181057002.pdfIn PDF document text
  • https://barcelonacentremedic.cat/files/galeria/files/92735983091.pdfIn PDF document text
  • https://digiconelectronics.com/media/jujorejaxe.pdfIn PDF document text
  • https://bursaceviritercume.com/wp-content/plugins/formcraft/file-upload/server/content/files/160832aa44d4cb---49205652662.pdfIn PDF document text
  • http://hungbuloon.com/media/ftp/file/9338243046.pdfIn PDF document text
  • http://ambulatorioveterinariobubiniregini.eu/userfiles/files/buxomonemu.pdfIn PDF document text
  • https://mattweidnerlaw.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a0c75f49658---57208329169.pdfIn PDF document text
  • http://flywings.sk/UserFiles/file/vemixavebel.pdfIn PDF document text
  • https://idfusionllc.com/wp-content/plugins/super-forms/uploads/php/files/e34e7aa60f4648358a3fa7e37eae6762/56624297001.pdfIn PDF document text
  • http://avtoarka.ru/wp-content/plugins/super-forms/uploads/php/files/718541402d00fa6efba3326785b5ea43/24503622050.pdfIn PDF document text
  • https://media-get.ru/userfiles/files/50416960118.pdfIn PDF document text
  • https://michaels-limo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607805ebc8632---65873580529.pdfIn PDF document text
  • http://discoveryenglish.org/wp-content/plugins/formcraft/file-upload/server/content/files/160a3a6c421d05---pobasugejirokoxe.pdfIn PDF document text
  • http://eaeocs.com/clients/c/c7/c75ed17bfa54634cfc1039f1b599a7e7/File/80951839893.pdfIn PDF document text
  • http://akcompany.vn/uploads/userfiles/file/36094412889.pdfIn PDF document text
  • http://asiavent.com/UserFiles/file///54454043502.pdfIn PDF document text
  • http://www.patricktennis.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160b1e4d9862cc---69380050315.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/3CAf4wW3hvY/uplcv?utm_term=allen+class+9+study+material+free+downloadPDF link annotation
  • 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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