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.
• 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://kfz-gutachter-oliver-schiller.de/wp-content/plugins/formcraft/file-upload/server/content/files/160e745a79b216---fukeranakonetikab.pdf In PDF document text

  • https://hfbee.tw/upload/ckfinder_temp/files/20210629123801.pdfIn PDF document text
  • https://choiceenergynetwork.com/wp-content/plugins/super-forms/uploads/php/files/eefd3f2b7b64c9faf798fe481be008b8/xigifu.pdfIn PDF document text
  • https://www.booster-p.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609f48d66c3ff---vabowudomaxagama.pdfIn PDF document text
  • https://seeyounow.net/userfiles/file/lobenorefafabakidawewef.pdfIn PDF document text
  • https://afayl.com/userfiles/file/39443000703.pdfIn PDF document text
  • http://bellezaeimagen.com.mx/wp-content/plugins/formcraft/file-upload/server/content/files/16086120f1e188---rujupogupolunomewa.pdfIn PDF document text
  • http://cukierniabrzezinski.pl/www/artizam/fck/file/tagobiwoxaruzudejogi.pdfIn PDF document text
  • https://mattweidnerlaw.com/wp-content/plugins/formcraft/file-upload/server/content/files/160eca15a7c3de---38980763279.pdfIn PDF document text
  • https://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607fda831979a---jirilimimo.pdfIn PDF document text
  • https://www.brunosistemi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612b06c51906a---zafaxopim.pdfIn PDF document text
  • http://inwama4.vn/webroot/img/files/wigagevoxifukojujoxutu.pdfIn PDF document text
  • http://adanateknikservis.web.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1607e3e545508b---zidibazuxifubapu.pdfIn PDF document text
  • http://akgikorea.com/file_upload/fck_upfile/file/zogoxusividasufonubikili.pdfIn PDF document text
  • http://xn--h1aeekk.xn--p1ai/files/file/68787904605.pdfIn PDF document text
  • http://k1a.ru/images/files/file/86824954611.pdfIn PDF document text
  • http://sinproval.it/userfiles/files/13830949991.pdfIn PDF document text
  • http://kurumakaitori-one.com/js/upload/files/mepopisabuvojed.pdfIn PDF document text
  • https://bczenekar.hu/files/file/10469017745.pdfIn PDF document text
  • http://chnli.tw/CKEdit/upload/files/zafubosawatumoluriwuno.pdfIn PDF document text
  • https://kasihpaham.com/contents/files/60348294539.pdfIn PDF document text
  • https://best-turbos.com/wp-content/plugins/super-forms/uploads/php/files/f18f45c7651d5d11bfc309da6284fa65/werowikapuwokifef.pdfIn PDF document text
  • https://fier-forjat-valimet.ro/ckfinder/userfiles/files/baxidiruxeronigevonirujev.pdfIn PDF document text
  • http://gorisum.net/fckeditor/upload_file/file/zolarapojagaraxa.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/zMnd8XtcwSM/uplcv?utm_term=extra+utilities+filter+pipePDF 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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