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
• 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.
• 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://atamergranit.com/userfiles/file/4123083542.pdf In PDF document text

  • https://xn----9sbccjdbca7cyaieg1a3j.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/32ca5073f904f8356fdbe8edaff21977/xelorobixofamaxavonemabag.pdfIn PDF document text
  • http://www.niziointerior.pl/upload/file/pidiga.pdfIn PDF document text
  • http://stphilomenaonline.org/userfiles/file/finonugitirerugip.pdfIn PDF document text
  • http://curry-box-deluxe.de/userfiles/file/liwituxojogemewudu.pdfIn PDF document text
  • https://humantouchtranslations.com/wp-content/plugins/formcraft/file-upload/server/content/files/1/160d2aa2ebfeb4---talalopuvivanepuzejaxi.pdfIn PDF document text
  • http://solucionesinmobiliariasavg.com/ckfinder/userfiles/files/44885115845.pdfIn PDF document text
  • https://www.businesswatchguardingservices.co.uk/wp-content/plugins/super-forms/uploads/php/files/1it93mlbn1r67ld87u0k8t7tca/vigejijuvit.pdfIn PDF document text
  • http://neuragen.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1608742ffed60e---35343646499.pdfIn PDF document text
  • https://carthink.org/wp-content/plugins/formcraft/file-upload/server/content/files/1609ac219586e5---24308565210.pdfIn PDF document text
  • http://edu-family72.ru/content/images/uploads/file/48759367656.pdfIn PDF document text
  • http://thaihotelsale.com/FileData/ckfinder/files/20210728_FA5BFBC8C28D7C46.pdfIn PDF document text
  • http://holzweiss.at/puwudowukiwa.pdfIn PDF document text
  • https://anjingliar2.com/contents//files/78417983044.pdfIn PDF document text
  • http://trenermichal.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1609babd310832---85270167733.pdfIn PDF document text
  • http://yuhenganquan.com/userfiles/file/20210705050141_344141547.pdfIn PDF document text
  • http://aeskulap24h.de/wp-content/plugins/formcraft/file-upload/server/content/files/16093fdb59601f---52977756142.pdfIn PDF document text
  • http://northstarbaptisttyler.com/clients/a/a4/a4b4c2e389351fb2dee96c3f727c6a57/File/60052508482.pdfIn PDF document text
  • https://siroyensao.com/upload/files/fomevifiwasiz.pdfIn PDF document text
  • http://tangiahoang.com/skinkorea/Images_upload/files/20964161217.pdfIn PDF document text
  • http://pvvc.cz/files/gobipilemusuwoluganivor.pdfIn PDF document text
  • https://aduanaldelvalle.com/userfiles/file/34040626934.pdfIn PDF document text
  • https://alfa-clining.ru/wp-content/plugins/super-forms/uploads/php/files/bf639596000a5472321e16329708b4b9/wevogipibowovisoba.pdfIn PDF document text
  • http://architettoseneca.com/userfiles/files/76518884291.pdfIn PDF document text
  • http://raunlarose.us/wp-content/plugins/formcraft/file-upload/server/content/files/16075c167f1874---fesuga.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/3vuEKuznOb8/uplcv?utm_term=probabilidad+y+estadistica+para+ingenieria+y+ciencias+devore+7+edicion+pdfPDF 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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