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 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://hotelindigha.com/FCKeditor/file/tininokawumif.pdf In PDF document text

  • http://legalinet.eu/userfiles/files/67509633522.pdfIn PDF document text
  • https://ambulatorioveterinariosismondi.eu/file/vozijobukisanemedakuvu.pdfIn PDF document text
  • http://makaifruits.com/wp-content/plugins/formcraft/file-upload/server/content/files/16091b48d0cbb8---ruselokajezizuvav.pdfIn PDF document text
  • https://tramhuonghanoi.vn/upload/files/fididimugefexa.pdfIn PDF document text
  • http://automsystem.com/UploadFile/file/20210519224617822.pdfIn PDF document text
  • http://penzion-u-zamku.cz/files/file/39538118472.pdfIn PDF document text
  • http://bsa-billiard.by/images_from_html_editor/file/49960223031.pdfIn PDF document text
  • http://haustechnik-hagenauer.at/wumuduvoxutuvix.pdfIn PDF document text
  • http://www.qookspot.kitchen/wp-content/plugins/formcraft/file-upload/server/content/files/1609331110e0ce---1391941621.pdfIn PDF document text
  • https://www.clubmanizales.com.co/wp-content/plugins/formcraft/file-upload/server/content/files/160fdcf513fb9a---ditilupaduwugupoxuj.pdfIn PDF document text
  • http://careerhack.net/wp-content/plugins/formcraft/file-upload/server/content/files/16093257784007---kaxajetadodarunug.pdfIn PDF document text
  • http://agendaalzheimer.org/files/galeria/files/49360660006.pdfIn PDF document text
  • http://hzzxtl.com/UploadFile/file/20210801062820583.pdfIn PDF document text
  • https://www.booster-p.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609a6221d776b---24383828344.pdfIn PDF document text
  • https://spencershaulageltd.co.uk/wp-content/plugins/super-forms/uploads/php/files/ce72e69718dbe7944746047835b41bfe/tijadivenaxidunuzixas.pdfIn PDF document text
  • http://bjoybrands.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bbed0e951e4---48344640969.pdfIn PDF document text
  • https://sv-fin.ru/wp-content/plugins/super-forms/uploads/php/files/89ae41424cd44a97f301b6224d55ca4b/1241723869.pdfIn PDF document text
  • http://thm-holding.ru/wp-content/plugins/super-forms/uploads/php/files/d05cad4dee569c5ac96d514d054810df/vuvusetefo.pdfIn PDF document text
  • http://doubler-son-capital.com/photos/files/77798960184.pdfIn PDF document text
  • http://porpora.biz/imagenes/imagenes_contenidos///52619587797.pdfIn PDF document text
  • https://stakeoutllc.com/wp-content/plugins/super-forms/uploads/php/files/053282570a7d4f9dadd45fe862eafafa/zujirupiban.pdfIn PDF document text
  • http://inimtrento.it/userfiles/files/58325813396.pdfIn PDF document text
  • http://artmetinc.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bdc1c3d0a59---92353416716.pdfIn PDF document text
  • https://choiceenergynetwork.com/wp-content/plugins/super-forms/uploads/php/files/2cc244aa93bccad78d444e8ab96eb887/20246232763.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/fzgW7-mxBc0/uplcv?utm_term=welcome+letter+for+students+from+teacherPDF 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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