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.
• Embedded JS stream low PDF_JS
  PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
• 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://htijsr.com/userfiles/file/98793537824.pdf In PDF document text

  • http://kingspec.su/wp-content/plugins/super-forms/uploads/php/files/s0m638jiabrbgk8td35cskuped/joganigodivukoraxen.pdfIn PDF document text
  • http://antopol.topmebli.com/content/xuploadimages/file/6699504479.pdfIn PDF document text
  • http://lawcab.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1612f1e4a8f453---guradipuzosasideve.pdfIn PDF document text
  • http://regmac.net/userfiles/files/13827240671.pdfIn PDF document text
  • https://ecoverservice.be/gallery/file/ponugivul.pdfIn PDF document text
  • https://ifacemount.com/wp-content/plugins/super-forms/uploads/php/files/84maiakiv2i6saa5q20g5pv9gf/misuwusegodimak.pdfIn PDF document text
  • https://macjiboter.macjahisa.si/files/file/17389463610.pdfIn PDF document text
  • https://www.lsv-wittlage.de/ckfinder/userfiles/files/67741210838.pdfIn PDF document text
  • https://glycocalyx.nl/userfiles/image/file/78870663991.pdfIn PDF document text
  • http://career-id.org/ckfinder/userfiles/files/forajajijanaginoladuj.pdfIn PDF document text
  • https://aakritidigitals.com/userfiles/files/silamegovufakad.pdfIn PDF document text
  • http://firmykominkowe.pl/Obrazki/edytor/file/vimaradevesumewadofovonax.pdfIn PDF document text
  • https://divorcioconsensual.com.br/wp-content/plugins/super-forms/uploads/php/files/0bbf698618b1158cbb877b1799523c43/94804145250.pdfIn PDF document text
  • https://linhan.xelinhan.vn/userfiles/file/dusafata.pdfIn PDF document text
  • https://rh-h1tapi-turbo.com/contents/files/3652862024.pdfIn PDF document text
  • https://cherrychile.cl/cherry/uploads/contenido/files/61082689682.pdfIn PDF document text
  • https://superiorservicesandsolutionsfl.com/nbloom/fckuploads/file/kapefajikixane.pdfIn PDF document text
  • https://minjar.mebel18.com/uploads/files/nunebujanawimitatad.pdfIn PDF document text
  • http://w-f-l.de/user_img/file/29079333762.pdfIn PDF document text
  • http://ozona.pt/js/fckeditor/editor/filemanager/connectors/wysiwygfiles/file/nemewekolaludekapeg.pdfIn PDF document text
  • http://zekejozsef.eu/FCKfeltoltott/file/991885914.pdfIn PDF document text
  • http://viethanit.vn/hinhanh/file/finumawebanatakenone.pdfIn PDF document text
  • http://xedaphcm.com/luutru/files/jibivodusenutuxesi.pdfIn PDF document text
  • http://sentralperdana.com/file/jonuguxavuzemomalewakum.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/cv9VXjIrmdE/uplcv?utm_term=sherni+full+movie+vidya+balanPDF 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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