Malicious PDF — malware analysis report

Heuristics 8

• ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
• PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
  PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
• 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
• PDF differential parser failed info PDF_DIFFERENTIAL_PARSE_FAILED
  The cross-check parser (pdfminer.six) failed on this file: PDF differential parser failed: PDFSyntaxError. Static heuristics still ran and any of their findings above are valid; only the differential cross-check signal is missing.
• 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://khocabien.com/uploads/files/vefakafebesiva.pdf In PDF document text

  • http://mexxeopaint.com/upload/files/muluvivegimorof.pdfIn PDF document text
  • https://www.sussexweddingservices.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16167f09bab517---9054090020.pdfIn PDF document text
  • http://www.39koratmachinery.com/file_upload/files/28135308116.pdfIn PDF document text
  • https://sharzh-ufa.ru/wp-content/plugins/super-forms/uploads/php/files/6081239154fda5027b68d45c3e09327b/1460204946.pdfIn PDF document text
  • https://congthuonghotel.vn/app/webroot/files/images/pages/files/11899312600.pdfIn PDF document text
  • https://10s317.com/uploads/files/202109231818301293.pdfIn PDF document text
  • https://olgunbey.com/upload/ckfinder/files/fagawamadukekuvegezifi.pdfIn PDF document text
  • https://ecosolar-energy.com/piceditor/file/82426941935.pdfIn PDF document text
  • http://docando.es/js/ckfinder/userfiles/files/vedigudix.pdfIn PDF document text
  • https://pediatricpotentialsnj.com/PP/PPpng/files/xajizareb.pdfIn PDF document text
  • http://hitecds.com/userfiles/file/85790093842.pdfIn PDF document text
  • http://bagandpack.ru/wp-content/plugins/super-forms/uploads/php/files/e30f4d1aa7d1a0da11cfa21a2be6bd95/wezigirikifevupa.pdfIn PDF document text
  • https://al-farh-iq.com/upload/userfiles/file/gedexesabajowiviradoj.pdfIn PDF document text
  • http://www.pointcookelectrician.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1613dc0661352d---jarasej.pdfIn PDF document text
  • https://cantellodetersiviprofessionali.it/uploads/file/79527316730.pdfIn PDF document text
  • http://sampleshipyard.com/userfiles/file/xokovakab.pdfIn PDF document text
  • https://defrokatilai.lt/images/files/25240653618.pdfIn PDF document text
  • http://dijladentalcenter-qa.com/userfiles/file/lelubin.pdfIn PDF document text
  • http://www.mearesandassociatesllc.com/siteuploads/editorimg/file/jonemizosawu.pdfIn PDF document text
  • http://objetivovender.com/wp-content/plugins/formcraft/file-upload/server/content/files/16133b6559e797---dagiregixokosegas.pdfIn PDF document text
  • http://uhy-th.com/image/upload/files/19081514118.pdfIn PDF document text
  • http://fratellibeninca.com/images/file/34074256540.pdfIn PDF document text
  • http://mentor-tutor.com/newGroserLikeProject/uploads/files/29284754507.pdfIn PDF document text
  • http://huyminhplastic.com/upload/files/13610895672.pdfIn PDF document text
  • http://chemicalengineers.ie/images/ruvififumibabaxotutikuzu.pdfIn PDF document text
  • http://feedproxy.google.com/~r/Xvkpad/~3/2I9n2o-U8HI/uplcv?utm_term=teaching+a+5-1+rotation+in+volleyballPDF link annotation
  • http://dejavu.sourceforge.netIn PDF document text
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

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