Malicious PDF — malware analysis report

Heuristics 8

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
  Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
• 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://yoyep.co.za/YmrXLWy8?keyword=keurig%202.0%20parts%20drip%20tray PDF link annotation

  • http://www.christinemartin.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/162007c756ed32---fipubitigemitupuwegev.pdfIn PDF document text
  • https://xamorefozinibir.weebly.com/uploads/1/3/4/6/134643183/jovaf-matuvu.pdfIn PDF document text
  • http://premiumresourcing.com/wp-content/plugins/formcraft/file-upload/server/content/files/162457ec76fce7---rafetup.pdfIn PDF document text
  • https://pinejose.weebly.com/uploads/1/3/4/4/134467182/951920.pdfIn PDF document text
  • https://nisikigibifug.weebly.com/uploads/1/3/0/8/130813528/58e62c01.pdfIn PDF document text
  • http://poongdung.com/FileData/ckfinder/files/20220313_16A98E39482641D2.pdfIn PDF document text
  • https://kurasapar.weebly.com/uploads/1/3/4/9/134902571/db8f05a7c064.pdfIn PDF document text
  • http://baozhaopharma.com/upload/files/webonuzowopajoxesi.pdfIn PDF document text
  • https://sopataketet.weebly.com/uploads/1/3/4/7/134705318/disepofum-womodurimefuli-rowuzexulate.pdfIn PDF document text
  • https://kobuxomibusopi.weebly.com/uploads/1/3/4/6/134609859/kopokaponodokegapun.pdfIn PDF document text
  • https://norusukesalija.weebly.com/uploads/1/3/4/3/134356509/meropu-fokomug.pdfIn PDF document text
  • https://mugunerer.weebly.com/uploads/1/3/4/4/134479547/vasekalaz_dekiwojopase.pdfIn PDF document text
  • http://grafika.szklo-lux.pl/nowa/userfiles/file/5245223728.pdfIn PDF document text
  • http://mskgroup-spb.ru/upload/file/84457979271.pdfIn PDF document text
  • https://xunaleguzug.weebly.com/uploads/1/4/1/2/141251906/suxerobipaluferijot.pdfIn PDF document text
  • https://braviengenharia.com.br/wp-content/plugins/super-forms/uploads/php/files/psgbfepgc97k1kq7u7lbmp1nlq/wirejinajifoduf.pdfIn PDF document text
  • http://www.korsun.ic.ck.ua/js/kcfinder/upload/files/jelomaxoxewexaxovofi.pdfIn PDF document text
  • https://siwuxamafovad.weebly.com/uploads/1/3/4/4/134489720/a479724.pdfIn PDF document text
  • http://graczeonline.pl/userfiles/file/24199068799.pdfIn PDF document text
  • 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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