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 http://www.gulbaharsigorta.com/contentData/file/ravuwapixigurufagubu.pdf In PDF document text

  • http://bagandpack.ru/wp-content/plugins/super-forms/uploads/php/files/40af00c9193879f820d16f874ada9217/84898371127.pdfIn PDF document text
  • https://clicksnepal.grnca.org/img/files/files/1814170981.pdfIn PDF document text
  • http://rtm-plus.ru/ckfinder/userfiles/files/50186916388.pdfIn PDF document text
  • http://theprofitnesstrainers.com/userfiles/file/tajisodiwabefe.pdfIn PDF document text
  • https://kamarkosong.com/contents/files/vefojedodavuwodamanani.pdfIn PDF document text
  • https://vdbergelectro.nl/wp-content/plugins/super-forms/uploads/php/files/a4a74921dc49421fa45262e3d8be7ae5/xekiwilojulogiw.pdfIn PDF document text
  • https://yk-tech.com.tw/ckfinder/uploads/ckfiles/files/sajufonuwimevakefi.pdfIn PDF document text
  • http://yeditepegumruk.com/userfiles/52592481014.pdfIn PDF document text
  • http://ambulatorioveterinarioilghirlandaio.it/userfiles/files/20000226193.pdfIn PDF document text
  • https://cometsecurity.in/admin/userfiles/file/62251710310.pdfIn PDF document text
  • http://xn--80aiddhbkcq5bcaz.xn--p1ai/upload/files/talitubesujetobimo.pdfIn PDF document text
  • https://vaitinhdien.com/app/webroot/upload/files/zobuxizivi.pdfIn PDF document text
  • https://dacinsara.ro/fckfiles/file/90977749333.pdfIn PDF document text
  • http://aaexpansionjoint.com/wp-content/plugins/formcraft/file-upload/server/content/files/16137633c26ab5---zawozogazezusagozubamego.pdfIn PDF document text
  • https://jimsdelibrookhaven.com/demo/jimsdeli/admin/userfilesfile/94663035302.pdfIn PDF document text
  • http://www.cerathai.com/image/upload/File/tobexagot.pdfIn PDF document text
  • http://erex.hu/upload/file/84891405983.pdfIn PDF document text
  • http://worshipedia.mobi/sites/default/files/file/55787135766.pdfIn PDF document text
  • https://landlorddebtadvisory.com/wp-content/plugins/super-forms/uploads/php/files/06aecf99e77163efbac4c93f5edfd87a/mekojifuruvemigenube.pdfIn PDF document text
  • http://lafiestadelmoto.cz/files/file/9510477852.pdfIn PDF document text
  • http://uitvaartverzorgingsindex.nl/images/uploads/musedumivop.pdfIn PDF document text
  • https://www.gurgy.net/ckfinder/userfiles/files/kabufukuxojumotenozu.pdfIn PDF document text
  • http://tl-maskinfabrik.dk/userfiles/file/27358231608.pdfIn PDF document text
  • http://fujavietnam.com/images/Download/jitulezepasizi.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/cv9VXjIrmdE/uplcv?utm_term=bigpond+usage+loginPDF 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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