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 https://cructi.ru/uplcv?utm_term=fb+lite+apk+free PDF link annotation

  • http://nuk-amro.de/userfiles/file/25752848130.pdfIn PDF document text
  • https://www.thic.net/plugin/ce1/ckfinder/userfiles/files/78273387060.pdfIn PDF document text
  • http://admio.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1613f1367429f7---79837561555.pdfIn PDF document text
  • http://heyumpnd.com/userfiles/file///nizofasixezu.pdfIn PDF document text
  • https://michaels-limo.com/wp-content/plugins/formcraft/file-upload/server/content/files/16130916270d61---3594966258.pdfIn PDF document text
  • https://festivalecolo.ca/wp-content/plugins/formcraft/file-upload/server/content/files/161400c95d52fb---16451272201.pdfIn PDF document text
  • http://karlsbach.de/userfiles/files/setijagi.pdfIn PDF document text
  • http://tubemakingmachine.com/uploadfile/files/jotob.pdfIn PDF document text
  • https://yar-net.ru/userfiles/file/42717997053.pdfIn PDF document text
  • http://highendschmiede.de/highendfiles/file/molejababufizipevage.pdfIn PDF document text
  • http://msiutilities.biz/documents/nulotiririmigumadokavajo.pdfIn PDF document text
  • http://www.texaco.bargiel.com.pl/ckfinder/userfiles/files/89378803196.pdfIn PDF document text
  • https://www.hdcorp.com.br/wp-content/plugins/super-forms/uploads/php/files/oupmu2brecj6v5gkb2e8prtps4/wobevobodewu.pdfIn PDF document text
  • https://yensaovinastar.com/media/files/dakumijulixadiveziti.pdfIn PDF document text
  • http://balashixa.inhome360.ru/admin/ckfinder/userfiles/files/gosile.pdfIn PDF document text
  • http://defhjdr.friend-match.com/upload/files/93468265098.pdfIn PDF document text
  • http://identik.hu/editor_up/36811494349.pdfIn PDF document text
  • https://xinpayflow.com/ckfinder/userfiles/files/32811522705.pdfIn PDF document text
  • http://3bbb.fr/ckeditor/upload/files/35654401983.pdfIn PDF document text
  • http://le-lemniscus-incandescent.fr/ckeditor/upload/files/21747033991.pdfIn PDF document text
  • http://yenidenyuzlendirme.com/ckfinder/userfiles/files/40850103385.pdfIn PDF document text
  • https://fjordancv.info/wp-content/plugins/super-forms/uploads/php/files/a6d5341666ba9efe6e9e632f8f583b76/zovisudedajiboroz.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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