Malicious PDF — malware analysis report

Heuristics 7

• 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.
• 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=3+year+old+constant+tantrums PDF link annotation

  • https://osakaav.com/userfiles/files/51048973791.pdfIn PDF document text
  • http://benefielddarrenfordhicksunited.com/clients/2/21/2186b72972973349411f8b90e6071e14/File/62557021644.pdfIn PDF document text
  • http://groupkaishan.com/d/files/wopirasesegaxodirorezoke.pdfIn PDF document text
  • http://skiflogistics.ru/userfiles/file/melonuruzonoze.pdfIn PDF document text
  • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608a842b769a3---75050934731.pdfIn PDF document text
  • http://licausi.it/userfiles/files/punutegunozeguvewawis.pdfIn PDF document text
  • http://akcjonariusz.com/UserFiles/file/kabuzixedokovi.pdfIn PDF document text
  • http://www.sunarpazarlama.com/wp-content/plugins/super-forms/uploads/php/files/k400f5u12003a8jp6au67n2f66/24434289935.pdfIn PDF document text
  • http://sungsam.net/userData/board/file/gizubativitujol.pdfIn PDF document text
  • https://www.enterpriselighting.com/wp-content/plugins/super-forms/uploads/php/files/d2424692c1f72518c28829208a0c7604/navixelojuginikamopa.pdfIn PDF document text
  • http://sistersaviopublicschool.com/userfiles/file/dinizizawelunotuxiser.pdfIn PDF document text
  • http://peaceinsrilanka.lk/userfiles/file/10251609704.pdfIn PDF document text
  • http://adanateknikservis.web.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160973ab1cc07a---zezovukupufumabavebiwugi.pdfIn PDF document text
  • http://maximaviajes.com/FCKfiles/file/33025740289.pdfIn PDF document text
  • http://casaatlantida.com/userfiles/file///rugarojanibitupe.pdfIn PDF document text
  • http://adria-ex.com/images/blog//file/rematozolonuvokejero.pdfIn PDF document text
  • https://minutesnap.com/wp-content/plugins/super-forms/uploads/php/files/defd36b2649566e896c227a17a76e08b/37085949639.pdfIn PDF document text
  • http://www.supercarrentalsofmiami.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609c0d52ed402---bamevaninawutowopuniz.pdfIn PDF document text
  • http://aapltd.net/userfiles/file/favejemevufis.pdfIn PDF document text
  • https://realimpacto.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16089c9b096586---26704145345.pdfIn PDF document text
  • http://ugyvednok.hu/userfiles/file/tijewapase.pdfIn PDF document text
  • http://ildungrice.com/fileupload/fckeditor/file/48269422508.pdfIn PDF document text
  • https://kassa-evotor.ru/wp-content/plugins/super-forms/uploads/php/files/cl055ghf65ro4kl84boun0fa7f/1103580326.pdfIn PDF document text
  • http://adhdesign.de/userContent/files/20210706185410-98118543404.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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