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
• 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.
• Callback phishing phone lure medium SE_CALLBACK_LURE
  Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
• 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://chanhbon.vn/media/ftp/file/35316435792.pdf In PDF document text

  • http://hoangle.vn/uploads/userfiles/file/kikidobagijapesagenabepig.pdfIn PDF document text
  • http://richmore.kr/uploadfile/fckeditor/file/30769437058.pdfIn PDF document text
  • http://lovesushiscv.com/uploads/files/wanazisut.pdfIn PDF document text
  • http://ukrainski-rosyjski.pl/userfiles/file/xutebozulipapevuvefesu.pdfIn PDF document text
  • http://studioambienteterritorio.it/userfiles/files/43477154330.pdfIn PDF document text
  • http://birons.net/wp-content/plugins/super-forms/uploads/php/files/9d0ba6e77b317f72bc6390273a2428b8/53694873354.pdfIn PDF document text
  • http://pck.malopolska.pl/wp-content/plugins/super-forms/uploads/php/files/b93c4bb1577cab33c0f0a0280067e96d/nufonajugatopukodarebudi.pdfIn PDF document text
  • http://thepokewave.com/uploads/files/59581417274.pdfIn PDF document text
  • http://www.ebsjosepirosamaria.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608a7cdf2a37e---pigorojenudumovemo.pdfIn PDF document text
  • https://biovuspharma.net/userfiles/files/48662924963.pdfIn PDF document text
  • http://hyundai-dongdo.vn/images/files/jegapemedime.pdfIn PDF document text
  • https://amartzon.store/wp-content/plugins/super-forms/uploads/php/files/734eeb3c8e03f2c96e78f41ea83a5f73/99587456681.pdfIn PDF document text
  • http://lapenya.cat/imgjovesnaves/file/xomakeninakunuzumizop.pdfIn PDF document text
  • http://pinetreerealty.ca/clients/55933/File/sajuwu.pdfIn PDF document text
  • https://pacantioquia.org/aym_image/files/15261497407.pdfIn PDF document text
  • https://getlovebooks.com/wp-content/plugins/super-forms/uploads/php/files/21fd6f51c3ee1da9668cf41769c494a9/90222011320.pdfIn PDF document text
  • http://www.meglobalinc.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1607e6f357390c---namapul.pdfIn PDF document text
  • https://baobihungphu.com/media/ftp/file/11461920645.pdfIn PDF document text
  • https://appchecar.com/ckfinder/userfiles/files/90192449068.pdfIn PDF document text
  • https://noblacklist.pro/web/img/podborky/files/mewatotekel.pdfIn PDF document text
  • http://www.rebranded.tv/wp-content/plugins/formcraft/file-upload/server/content/files/160a625858fe53---54028015190.pdfIn PDF document text
  • https://www.isgs.org/wp-content/plugins/super-forms/uploads/php/files/7a26c120c4ecd6db8631f690d95964f1/58306195066.pdfIn PDF document text
  • https://xn--80adj7cxa.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/c1fb46d91f318e3bcf86c2de764535d4/46657011984.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/LPIa9PGmDLg/uplcv?utm_term=plural+form+of+nouns+worksheet+for+grade+2PDF 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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