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 http://secureyun.cn/uploadfile/file///2021071403551152.pdf In PDF document text

  • https://csom.cz/wp-content/plugins/super-forms/uploads/php/files/fe425f770ed7bb363a2db9bed27ca892/bixomugovodekanupos.pdfIn PDF document text
  • https://allcreaturesinc.com/files/files/33389719116.pdfIn PDF document text
  • http://melissajacksonmd.com/wp-content/plugins/formcraft/file-upload/server/content/files/160876073d02f6---denisir.pdfIn PDF document text
  • https://www.popcaffe.it/wp-content/plugins/super-forms/uploads/php/files/c99ef74bf27b816414df9fa2f3eb9b39/41915520271.pdfIn PDF document text
  • http://transfertrolley.cn/d/files/tapimuzopasolemes.pdfIn PDF document text
  • http://arlingtonhigh1961.com/clients/e/ef/ef36f0800c0a5d5a0b00d5ecc8c3c6da/File/morinomanufakakapezumesa.pdfIn PDF document text
  • https://www.cedicar.com/wp-content/plugins/formcraft/file-upload/server/content/files/160eca3df08cab---80638565354.pdfIn PDF document text
  • http://homenet-spb.ru/userfiles/file/70324242390.pdfIn PDF document text
  • http://vijyaiprismcrm.com/userfiles/files/49344429539.pdfIn PDF document text
  • http://snookerfootball.eu/wp-content/plugins/formcraft/file-upload/server/content/files/160c7899553ec5---vofogupude.pdfIn PDF document text
  • https://humantouchtranslations.com/wp-content/plugins/formcraft/file-upload/server/content/files/1/160c4160b2eead---sajewiso.pdfIn PDF document text
  • https://www.santaterezinha.com.br/js/ckfinder/userfiles/files/mejuzitewigudusenebakuwiw.pdfIn PDF document text
  • https://webhostmurah.com/wp-content/plugins/formcraft/file-upload/server/content/files/16099ef8c5b363---dotupujebixudeporukoxoz.pdfIn PDF document text
  • http://microlana.com/ckfinder/userfiles/files/3259964831.pdfIn PDF document text
  • https://www.c2commercial.com/wp-content/plugins/super-forms/uploads/php/files/6ccb6280c5ff96f9f9176e4e8c478c39/wepager.pdfIn PDF document text
  • https://markeishahall.com/wp-content/plugins/super-forms/uploads/php/files/c0d1520e661e87c1cd7f6b3f53129a58/viwejimovefagitidajezuxaj.pdfIn PDF document text
  • https://bikinibody.be/wp-content/plugins/super-forms/uploads/php/files/9arsbdkf9omj7o2qtu6a91oc97/tewotibazovobax.pdfIn PDF document text
  • http://sbox-technology.com/upload/datoteke/banotunataxixa.pdfIn PDF document text
  • http://starkhigh1972.com/clients/d/dd/dd83d6d7846a033806cdb512e10d7d7c/File/1921113448.pdfIn PDF document text
  • https://ncfouting.com/wp-content/plugins/formcraft/file-upload/server/content/files/160afc85d878d0---96076835542.pdfIn PDF document text
  • https://emilline.dk/ckfinder/userfiles/files/pinapevenix.pdfIn PDF document text
  • http://almar-bus.pl/userfiles/file/mezidudujejasani.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/PmAiG5ZyT-k/uplcv?utm_term=%D0%BF%D0%BE%D0%B7%D0%B4%D1%80%D0%B0%D0%B2%D0%BB%D0%B5%D0%BD%D0%B8%D0%B5+%D1%81+%D0%B4%D0%BD%D0%B5%D0%BC+%D1%80%D0%BE%D0%B6%D0%B4%D0%B5%D0%BD%D0%B8%D1%8F+%D0%B2+%D0%BF%D1%80%D0%BE%D0%B7%D0%B5+%D0%B1%D1%80%D0%B0%D1%82%D1%83+50+%D0%BB%D0%B5%D1%82PDF 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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