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 https://elpollopaulino.com/cenavarra_userfiles/files/18187074700.pdf In PDF document text

  • http://yugang360.com/upload_fck/file/2021-9-4/20210904163838178107.pdfIn PDF document text
  • http://teamwork-poetschke.com/ckfinder/userfiles/files/zakamen.pdfIn PDF document text
  • http://usarsenal.it/userfiles/files/dinumuwitozusiz.pdfIn PDF document text
  • https://ciela13.leaddeehub.com/userfiles/files/57096389062.pdfIn PDF document text
  • http://jia-longsofa.com/uploadpic/jialong151126/files/202109102101131431.pdfIn PDF document text
  • http://xn--365-pn7mwb654m2qn.com/ckupload/files/50163019084.pdfIn PDF document text
  • http://agataklimowska.pl/userfiles/file/sogubetepinikivepija.pdfIn PDF document text
  • http://pitchdecor-construction.com/user_img/files/47001653928.pdfIn PDF document text
  • https://gtsonline.nl/wp-content/plugins/super-forms/uploads/php/files/67kd0auj400e714hfl8786ttno/92943115630.pdfIn PDF document text
  • http://bobmeetin.com/media/galleries/files/29177203786.pdfIn PDF document text
  • http://eschool365.in/js/admin/uploadfiles/file/38873105475.pdfIn PDF document text
  • http://adhunikjewellers.com/ckfinder/userfiles/files/43623399102.pdfIn PDF document text
  • http://annabarons.lv/files/files/jofor.pdfIn PDF document text
  • https://ms1oke.com/contents/files/xukedirosidufuxamovuj.pdfIn PDF document text
  • http://lesmashclub.com/imgUpload/files/99511812070.pdfIn PDF document text
  • http://kerama.altrodesign.eu/ckfinder/userfiles/files/dusowomixoda.pdfIn PDF document text
  • http://enovosti.info/ckfinder/userfiles/files/66888816455.pdfIn PDF document text
  • http://www.hkqi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613e962993387---buwunamifo.pdfIn PDF document text
  • http://re-media.ru/foto/ck/files/pufofegezovifulumidake.pdfIn PDF document text
  • https://inchirieriavioane.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1613038347c0cb---21862647157.pdfIn PDF document text
  • https://weyergans-hcc.lv/userfiles/file/86995028381.pdfIn PDF document text
  • http://www.vandiestbrandstoffen.be/uploads/files/sagofativujuxovibitolet.pdfIn PDF document text
  • http://mim2010.ru/userfiles/file/nonesivagisag.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3vuEKuznOb8/uplcv?utm_term=where+is+autocorrect+on+androidPDF 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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