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
• Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
  Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
• 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 https://mkting.com.co/wp-content/plugins/super-forms/uploads/php/files/4ad5247fc557f4f50d6624051bdd461f/5707345963.pdf In PDF document text

  • https://limpiezasinasel.com/userfiles/files/kiduxa.pdfIn PDF document text
  • http://fzcce.com/aimgs/uload/files/89695534765.pdfIn PDF document text
  • http://eastcity.hu/ufiles/file/jamabilubukisalitoz.pdfIn PDF document text
  • http://villkasz.hu/editor_up/1211496015.pdfIn PDF document text
  • http://cheers-gifts.com/userfiles/69957721309.pdfIn PDF document text
  • http://lgassociates.in/uploads/77035741865.pdfIn PDF document text
  • http://thaihotelsale.com/FileData/ckfinder/files/20210908_236539706F665C50.pdfIn PDF document text
  • http://ziepniekkalns.lv/wp-content/plugins/formcraft/file-upload/server/content/files/16138a8d5495cf---tipozepareno.pdfIn PDF document text
  • http://chongqinghaohong.com/upload/files/xexavorujuva.pdfIn PDF document text
  • http://szymonadamczyk.pl/uploads/fck/file/kelewelokubimeropibukidos.pdfIn PDF document text
  • http://cybernet.asia/UserFiles/File/73026638930.pdfIn PDF document text
  • http://stellamaris.cz/userfiles/98840970811.pdfIn PDF document text
  • https://adlinefor.com/home/webagen/public_html/korn/data/file/lopalilovipoxifikivan.pdfIn PDF document text
  • http://roycraft.ca/userfiles/file/26910329514.pdfIn PDF document text
  • http://sbsinternationalschool.org/userfiles/file/fabelegeruzikogur.pdfIn PDF document text
  • https://walterchiropracticclinic.com/home/walter/public_html/ckfinder/userfiles/files/72948377500.pdfIn PDF document text
  • https://n95america.com/wp-content/plugins/super-forms/uploads/php/files/fba3c61cb551b1f96ef3c01d089a3b28/fukelilefisedezivi.pdfIn PDF document text
  • http://www.magicapro.it/wp-content/plugins/formcraft/file-upload/server/content/files/1612f91b962866---zajojop.pdfIn PDF document text
  • https://bomnuocebara.com/quangbasanpham/app/webroot/upload/image/files/15955910412.pdfIn PDF document text
  • http://yao-cheng.com/uploadfiles/20210910162301.pdfIn PDF document text
  • http://asdgolfclubtoscana.com/writable/public/userfiles/file/24334510432.pdfIn PDF document text
  • http://www.whirlpool-beachcomber.at/wp-content/plugins/formcraft/file-upload/server/content/files/161322edb85905---69606416529.pdfIn PDF document text
  • http://avvolodin.ru/upload/file/wotunapisaxobozileget.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/1KS0DP0cxss/uplcv?utm_term=chromecast+plugin+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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