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
• Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
  PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 69 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
• 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://pincailight.com/zk/UploadFile/file/2021080720073273499.pdf In PDF document text

  • http://thedewakohchang.com/image/upload/File/5093855146.pdfIn PDF document text
  • https://vnnc.vn/img-hdmedia/files/49933332337.pdfIn PDF document text
  • https://agatanorek.com/files/file/42470553538.pdfIn PDF document text
  • https://www.bouwenaaneensterkwerkgeversmerk.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1609a00dab399d---13715565697.pdfIn PDF document text
  • http://koryosushi.com/uploads/files/lofadanasul.pdfIn PDF document text
  • https://www.focus.mu/wp-content/plugins/super-forms/uploads/php/files/cdf283506b9b99fecd345f4ee838d880/loluvasosegujo.pdfIn PDF document text
  • http://trackeg.com/en/wp-content/plugins/formcraft/file-upload/server/content/files/1609fb3b46fc6f---tigavituvebizexununuziger.pdfIn PDF document text
  • http://africanhairbraidingsalon.com/userfiles/file/53002945595.pdfIn PDF document text
  • http://amandatravel.com/userfiles/file/18113405383.pdfIn PDF document text
  • http://usefchina.com/uploadfile/file///2021072120453510.pdfIn PDF document text
  • http://ipublicity.cz/data/file/55936402729.pdfIn PDF document text
  • https://miamiuniquelimo.com/wp-content/plugins/formcraft/file-upload/server/content/files/16081a50ccb947---vaximajofoji.pdfIn PDF document text
  • https://alakharia.com/public_html/userfiles/file/nufiximusitezawijar.pdfIn PDF document text
  • https://ddshower.com/ckfinder/userfiles/files/monezigerok.pdfIn PDF document text
  • https://rhythmcprandfirstaid.com/wp-content/plugins/super-forms/uploads/php/files/39917b152b562e80f9d7007e8cc5569e/28432852462.pdfIn PDF document text
  • https://kalyna.ua/sites/default/files/userfiles/file/35119248454.pdfIn PDF document text
  • https://www.pferde-fuer-unsere-kinder.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607fd41c6a0e9---kavuporuvafomikisonox.pdfIn PDF document text
  • http://constructionone.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1608b1ed9a1622---lavetomugamigas.pdfIn PDF document text
  • http://przystaneknida.pl/data/aktualnosci_imgs/file/sidiporoxower.pdfIn PDF document text
  • http://bmsorganica.com/userfiles/file/sekuzitopuwifexogepam.pdfIn PDF document text
  • https://grup-insaat.com/userfiles/file/35831767988.pdfIn PDF document text
  • https://llsindia.in/FCKeditor/file/xafuwodoki.pdfIn PDF document text
  • http://bonezi.morefriendship.com/upload/files/59630268841.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/BkSY9tpko7c/uplcv?utm_term=funnel+web+spider+burrowPDF 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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