Malicious PDF — malware analysis report

Heuristics 6

• 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 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://densayhongngoai.com/uploads/userfiles/file/musinuwofivas.pdf In PDF document text

  • http://xn--22cjbbm2eyae3ehabdb4kqdtae3dxnnc1fhf.com/user_img/files/jibakeg.pdfIn PDF document text
  • https://auf.vn/wp-content/plugins/super-forms/uploads/php/files/ld5701jv5m4vnoqe1rtjhfvm44/12088353882.pdfIn PDF document text
  • https://www.capitalroofingct.com/wp-content/plugins/formcraft/file-upload/server/content/files/16131fd9daa811---77253036827.pdfIn PDF document text
  • http://duz-drustvo.si/uporabnik/file/zivusom.pdfIn PDF document text
  • http://jngf.cn/files/file/21835878559.pdfIn PDF document text
  • http://parkwestresidences.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612efde83e5d2---34017543552.pdfIn PDF document text
  • https://eravikulamnationalpark.org/ckfinder/userfiles/files/9342695900.pdfIn PDF document text
  • https://warungmimpishio.com/contents/files/japab.pdfIn PDF document text
  • http://biosite.ru/images/news/file/74533042475.pdfIn PDF document text
  • https://n-tlg.com/files/file/96784428399.pdfIn PDF document text
  • http://smartvoicecom.com/userfiles/ninebugibuxef.pdfIn PDF document text
  • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16162fd4511365---wowuwin.pdfIn PDF document text
  • http://diagnosticaedilizia.com/userfiles/files/56440065455.pdfIn PDF document text
  • http://reutlinger.pl/userfiles/file/92882945631.pdfIn PDF document text
  • https://electroagro.es/pub/files/sigosuzavoxes.pdfIn PDF document text
  • https://alpinashop.rudy-ra.com/files/samibogaxufamitobutovefow.pdfIn PDF document text
  • https://bonekarusa.com/contents/files/movigepovawokonitogodiwik.pdfIn PDF document text
  • http://zartmobilia.com/userfiles/file/20210916194658.pdfIn PDF document text
  • http://thaimassagemodel.com/ckfinder/userfiles/files/kijikekiweretes.pdfIn PDF document text
  • http://yuseigachi.nl/wp-content/plugins/formcraft/file-upload/server/content/files/161492e1c72818---55334305680.pdfIn PDF document text
  • http://webcertain.asia/contentupload/fckeditorUploads/organization_/file/weligepusulud.pdfIn PDF document text
  • http://sacmacbook.net/userfiles/file/tanulivofimafilopulekuziz.pdfIn PDF document text
  • http://www.nandomoraes.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1614b7b49d942f---82357055515.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Gsjc/~3/oscUj7J0Gjw/uplcv?utm_term=differentiate+a+geometric+sequence+from+an+arithmetic+sequencePDF 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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