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
• Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
  Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
• 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://vicotelecom.vn/static/source/images/file/90360461954.pdf In PDF document text

  • http://akademia-jedenastka.pl/zdjecia/fck/file/17289215430.pdfIn PDF document text
  • http://matrixuniverzum.eu/wp-content/plugins/formcraft/file-upload/server/content/files/161333fac22f86---98901604092.pdfIn PDF document text
  • http://majedalkarkhi.com/pics/file/65917027145.pdfIn PDF document text
  • https://onthespothousing.com/userfiles/file/69055441167.pdfIn PDF document text
  • http://bapassamarinda.id/assets/ckfinder/core/connector/php/uploads/files/50509440983.pdfIn PDF document text
  • https://www.andimoda.com/wp-content/plugins/super-forms/uploads/php/files/94236362ae2514a5c8bea5ce32cf8848/72074513091.pdfIn PDF document text
  • http://sdsenlex.com/upload/files/94921145538.pdfIn PDF document text
  • https://bulendengin.com/upload/ckfinder/files/66811572263.pdfIn PDF document text
  • https://sambelteri.com/contents/files/wamazibuj.pdfIn PDF document text
  • http://knx-shop.ru/admin/ckfinder/userfiles/files/buwipiwiduxikomuzokebiboz.pdfIn PDF document text
  • https://beta.nhatthiengroup.com/files/uploaded/files/lezexetelodivewilifadij.pdfIn PDF document text
  • http://zhjpharm.com/upload/files/jedibabe.pdfIn PDF document text
  • http://musicandyouapp.com/webupload/editorimg/files/78365210935.pdfIn PDF document text
  • https://connatlas.com/home/conn/public_html/ckfinder/userfiles/files/48052826770.pdfIn PDF document text
  • https://ozmutludokum.com/userfiles/file/tavelubenivaguzukakigo.pdfIn PDF document text
  • http://ser-buk.com/userfiles/file/kasoxanufub.pdfIn PDF document text
  • https://unitedcardsolutions.com/wp-content/plugins/formcraft/file-upload/server/content/files/16139b3178051b---sopezer.pdfIn PDF document text
  • https://lordoptika.hu/files/files/pokabifukotimibi.pdfIn PDF document text
  • http://pune-india.info/userfiles/file/10045467088.pdfIn PDF document text
  • http://vers-ma.de/userfiles/file/72576023949.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/1KS0DP0cxss/uplcv?utm_term=solid+explorer+unlocker+apkPDF link annotation
  • http://forum-auto.ru/data/files/zewiwiditexozona.pdfIn PDF document text
  • https://rt9.rspo.org/ckfinder/userfiles/files/93255748517.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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