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
• Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
  Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
• 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.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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://31kouqiang.com/userfiles/file/1623755072.pdf In PDF document text

  • http://ukicda.com/admin/fckeditor_upfiles/file/2021061322154780554.pdfIn PDF document text
  • http://www.victorian-manor.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160c8fe89ef7ac---41615980354.pdfIn PDF document text
  • http://klimagra.pl/images/wysiwyg_img/file/11320418711.pdfIn PDF document text
  • http://gsoam.ge/wp-content/plugins/formcraft/file-upload/server/content/files/16093e70d55e0c---wagepebabaxubuzunabas.pdfIn PDF document text
  • http://www.patricktennis.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160fdad1ea53f4---78628099212.pdfIn PDF document text
  • http://multiseal.com.ph/wp-content/plugins/formcraft/file-upload/server/content/files/1609be5cfa12c1---pofuwu.pdfIn PDF document text
  • http://51-lq.com/userfiles/file///nobajamoxalitepatobukele.pdfIn PDF document text
  • https://marathonblainville.com/userfiles/files/vokizu.pdfIn PDF document text
  • https://markzone.az/wp-content/plugins/super-forms/uploads/php/files/if83gs497atqu9msumj8kubb9e/88164599981.pdfIn PDF document text
  • http://bukhatirhomes.com/userfiles/file/7829254146.pdfIn PDF document text
  • http://mesotects.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608e9a5fb4dc0---98270413068.pdfIn PDF document text
  • http://ridendo.cz/files/file/tadexutotadewaxerutural.pdfIn PDF document text
  • https://www.golaw.net/wp-content/plugins/formcraft/file-upload/server/content/files/16091824c1f9f6---48779413030.pdfIn PDF document text
  • https://iqmuseum.mn/uploads/files/9036534909.pdfIn PDF document text
  • https://jollytime.ru/wp-content/plugins/super-forms/uploads/php/files/0d7cbb9f1e68cf443e6d1ec556a96779/5509028978.pdfIn PDF document text
  • https://bohemiamaestro.com/webpagebuilder/ckfinder/userfiles/files/89131974937.pdfIn PDF document text
  • https://www.idromeccanicasrl.com/idromeccanicasrl.com/wp-content/plugins/super-forms/uploads/php/files/71d255f455aa3c68d10e1cb5efb80ce2/tezegu.pdfIn PDF document text
  • http://optimus.org.au/wp-content/plugins/formcraft/file-upload/server/content/files/16095a731edfe0---16593872826.pdfIn PDF document text
  • https://nguyenvanhuongloc.vn/app/webroot/files/images/pages/files/41611402224.pdfIn PDF document text
  • https://unitedcardsolutions.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ae90915d2da---92298263366.pdfIn PDF document text
  • http://caphegiabao.com/upload/fck/file/34319932495.pdfIn PDF document text
  • https://www.sudburyhighspeedinternet.ca/wp-content/plugins/super-forms/uploads/php/files/e599f7d703a47512a7c8dc8c2560bd73/59522112300.pdfIn PDF document text
  • http://nceed.kr/pds/userfiles/files/vivajifitilivufudov.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/6naE_Nh8_CY/uplcv?utm_term=fifa+15+crack+v5PDF 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://dejavu.sourceforge.netIn PDF document text
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

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