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.
• Embedded JS stream low PDF_JS
  PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
• 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://tw-echen.com/uploads/files/202109022016356686.pdf In PDF document text

  • http://webcertain.asia/contentupload/fckeditorUploads/organization_/file/funilevu.pdfIn PDF document text
  • http://modern-pro.ru/files/file/novasaw.pdfIn PDF document text
  • http://bolt.fo/public_html/userfiles/files/46085497652.pdfIn PDF document text
  • http://danies.ru/ckfinder/userfiles/files/7662010024.pdfIn PDF document text
  • http://vipavtoufa.ru/wp-content/plugins/super-forms/uploads/php/files/396a6fd800f221f7db9bfa1b40d2728e/19569493155.pdfIn PDF document text
  • http://thietbidienmpe.net/upload/files/32655523774.pdfIn PDF document text
  • https://itchanoi.vn/uploads/news_file/jejojizasiwe.pdfIn PDF document text
  • http://charolais-hessen.de/write/userfiles/file/setavade.pdfIn PDF document text
  • http://hiro-seiko.com/upload/files/gobijajadozogubezawijamur.pdfIn PDF document text
  • https://questyme.ca/userfiles/file/53480715229.pdfIn PDF document text
  • https://xn-----6kcabagcgfjsxjciriy6alkh6a7aqk.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/afdcd4be6a19bdb0943c423135c184b7/45685952338.pdfIn PDF document text
  • http://jtylek.pl/Upload/file/35465328521.pdfIn PDF document text
  • https://www.mercedesbenzofaustinservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/161372a8ac283e---mizafipajupevororofum.pdfIn PDF document text
  • http://tofuyatogo.com/uploads/files/50325159402.pdfIn PDF document text
  • http://bigyikesmedia.com/home/xtremweb/public_html/consultinstitute/web/upload/files/51969489941.pdfIn PDF document text
  • http://suachuamaydemtien.biz/userfiles/file/fuzolumuburodiwujimozor.pdfIn PDF document text
  • http://www.medicalalliedtraining.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613762dd59b08---5372462341.pdfIn PDF document text
  • https://brusroom.com/wp-content/plugins/super-forms/uploads/php/files/470dd7091bf4324d0e7b386d3f266437/77729637871.pdfIn PDF document text
  • http://mundori.com/js/ckfinder/userfiles/files/23696891055.pdfIn PDF document text
  • http://dglytbt.com/upfolder/e/files/20210907035623.pdfIn PDF document text
  • https://www.vibrationmonitoring.asia/wp-content/plugins/formcraft/file-upload/server/content/files/1613c0035d3a76---22325306302.pdfIn PDF document text
  • http://www.css-jp.com/upfile/files/2021/09/01/97042097835.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/S30rS-6n6vg/uplcv?utm_term=read+contacts+android+examplePDF 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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