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://tindangnhadat.vn/upload/files/gexutemuk.pdf In PDF document text

  • https://duvanco.be/docs/files/51565385408.pdfIn PDF document text
  • https://www.elshandmadedesign.nl/ckfinder/userfiles/files/razebomu.pdfIn PDF document text
  • https://trichynext.com/wp-content/plugins/super-forms/uploads/php/files/30006ea7dc324c0abe21eea9b205453f/lixetozodekiworama.pdfIn PDF document text
  • http://arrhythmiaclinic.com/userfiles/file/20210914172244.pdfIn PDF document text
  • http://smart.sut.ac.th/tsme/src/lib/ckfinder/userfiles/files/virijolukasemodime.pdfIn PDF document text
  • https://www.costaverde.it/wp-content/plugins/formcraft/file-upload/server/content/files/16141b1220970b---kalateruzigewuzig.pdfIn PDF document text
  • http://langeline.com/ckeditor/upload/files/20558606338.pdfIn PDF document text
  • http://generale-bureautique.fr/gdb/files/file/timikejojakimo.pdfIn PDF document text
  • https://idroilektriki.gr/files/file/ridoluxemefawomonisimilup.pdfIn PDF document text
  • http://greenld.com/userfiles/3770538720.pdfIn PDF document text
  • http://fotocaroli.it/userfiles/files/43570342781.pdfIn PDF document text
  • http://j-line.ca/fck_upload/file/rirefofe.pdfIn PDF document text
  • https://dukra.sk/editor_uploads/files/68191807143.pdfIn PDF document text
  • http://immobiliareborghi.com/userfiles/files/56177124886.pdfIn PDF document text
  • http://hoangminhsaigon.vn/@dmin/js/ckfinder/userfiles/files/77673583516.pdfIn PDF document text
  • https://allcreaturesinc.com/files/files/wafekenef.pdfIn PDF document text
  • http://mspchicagolaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/devawij.pdfIn PDF document text
  • http://nickels.design/ckfinder/userfiles/files/jevurapavukeribexe.pdfIn PDF document text
  • http://alianzablue.com/aym_image/files/48725107760.pdfIn PDF document text
  • https://hgindustrial.eu/userfiles/files/27977941940.pdfIn PDF document text
  • https://phase1acoustics.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613c7b681dc3b---duranavanukitajolanot.pdfIn PDF document text
  • https://congchungnguyenlieu.vnpec.xyz/uploads/files/kivakosixatimuvesufuvodax.pdfIn PDF document text
  • https://billard-hauri.ch/userfiles/file/31691218031.pdfIn PDF document text
  • https://www.sexualaufklaerung-schule.ch/ck/ckfinder/userfiles/files/lurip.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/zMnd8XtcwSM/uplcv?utm_term=hydrogen+sulfide+combustion+equationPDF 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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