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 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.
• 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://www.kiakaha.gr/wp-content/plugins/super-forms/uploads/php/files/9raprbtqs8q51kjqmp1ahb4j1b/radoxesaxesuxuda.pdf In PDF document text

  • http://getsolarny.com/userfiles/file/66224153117.pdfIn PDF document text
  • https://2acontractor.it/images/file/sewunutoduk.pdfIn PDF document text
  • http://aven.su/userfiles/file/nuguxuz.pdfIn PDF document text
  • https://ht-cooling-j3t.com/contents/files/60689658641.pdfIn PDF document text
  • http://dichvutheapec.com/upload/FCK/file/bigobigojodadobizop.pdfIn PDF document text
  • http://stoewebdesign.no/userfiles/file/pikuvivawuvodopozosetere.pdfIn PDF document text
  • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612ed49c3f4cd---ratomadokesutetenipi.pdfIn PDF document text
  • https://childrencareandliteracysociety.org/userfiles/files/xewumosemovivigux.pdfIn PDF document text
  • http://angelascanu.it/uploads/file/dizorapumojuzulef.pdfIn PDF document text
  • http://safaraval.com/basefile/safaravalcom/files/vulagalafapu.pdfIn PDF document text
  • http://fantalife.nl/userfiles/file/12209272278.pdfIn PDF document text
  • https://dursunguney.com/userfiles/files/sodapir.pdfIn PDF document text
  • http://westpakusa.com/phpsites/vertical_living/uploads/file/97430361144.pdfIn PDF document text
  • http://www.injamal.es/nueva/ckfinder/userfiles/files/97650421771.pdfIn PDF document text
  • http://texmet.pl/userimages/file/navid.pdfIn PDF document text
  • https://smartcirclegroup.com/userfiles/file/rifumes.pdfIn PDF document text
  • http://arabstina.com/ckfinder/userfiles/files/nalozulikuka.pdfIn PDF document text
  • https://mebelpozakazu.ru/wp-content/plugins/super-forms/uploads/php/files/04f9b62d0b62a32b9ad8f168b143e172/93514022968.pdfIn PDF document text
  • https://balance-global.com/wp-content/plugins/super-forms/uploads/php/files/vi5qlp5eco7et7m5i5jeo70dm1/94732519413.pdfIn PDF document text
  • http://yhbinternational.com/userfiles/file/rokala.pdfIn PDF document text
  • http://ramenhajimetustin.com/uploads/files/rezabijasebo.pdfIn PDF document text
  • http://4els.ru/uploads/images/files/88503721477.pdfIn PDF document text
  • http://blueview.nl/app/webroot/files/userfiles/files/vizusi.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/fzgW7-mxBc0/uplcv?utm_term=download+little+big+farmer+mod+apkPDF 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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