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
• PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
  PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
• 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://catamma.ru/uplcv?utm_term=shree+devi+bhagavatam+in+telugu+pdf PDF link annotation

  • http://gelateriacool.it/userfiles/files/zepelubipupuwegixibig.pdfIn PDF document text
  • https://shinyjewellers.com/wp-content/plugins/super-forms/uploads/php/files/ibd21g7u965i6r5cjcu5tbne6p/73924091533.pdfIn PDF document text
  • http://cuuhoatudong.com/upload/files/jepezeselusowu.pdfIn PDF document text
  • https://matao.ro/app/webroot/files/userfiles/files/jadunevarabewipununafuno.pdfIn PDF document text
  • http://zawodydrwali.pl/app/webroot/userfiles/file/97901662968.pdfIn PDF document text
  • http://recepti.plovdivweek.com/js/ckfinder/userfiles/files/5166733851.pdfIn PDF document text
  • http://seamacros.com/upload/file/17753296929.pdfIn PDF document text
  • http://ambulatorioveterinariopisillibertozzi.eu/userfiles/files/48854610402.pdfIn PDF document text
  • http://lpc2529.com/piceditor/file/zomufeluzubulajafobise.pdfIn PDF document text
  • https://oolong-dining-co.com/webroot/editor-uploads/files/5806270807.pdfIn PDF document text
  • http://marta-galan.com/files/varios/file/xafiwokakenubufaja.pdfIn PDF document text
  • http://sakuragiramenandsushi.com/uploads/files/9131972709.pdfIn PDF document text
  • https://mytutr.com/wp-content/plugins/super-forms/uploads/php/files/bf61f9b103942b0293f4c33e05694b21/76012405002.pdfIn PDF document text
  • http://supermarketdv.ru/files/file/melona.pdfIn PDF document text
  • https://congchung7.com/upload/file/99807918705.pdfIn PDF document text
  • http://www.nuricomuvakfi.org/wp-content/plugins/super-forms/uploads/php/files/h1r9g5138h746p1r01q937jrs5/pebotesaniri.pdfIn PDF document text
  • https://thuaphatlaihoanghuy.com/uploads/files/zenomibig.pdfIn PDF document text
  • http://art-lan.ru/uploads/assets/file/69281568174.pdfIn PDF document text
  • http://dc-42351dc5a6b3.prshots.es/uploads/userfiles/1630713287/files/bevekepikisalawovorebapu.pdfIn PDF document text
  • http://chistogood.ru/admin/ckfinder/userfiles/files/xuxuwunaw.pdfIn PDF document text
  • http://kocavietnam.com/upload/files/gogapotesarorofapejola.pdfIn PDF document text
  • http://sarigol.kr/userData/ebizro_board/file/44477236673.pdfIn PDF document text
  • https://tjpapigroup3.com/contents/files/62099636200.pdfIn PDF document text
  • http://kimsanghun.com/upload/userfiles/file/2021982250492437.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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