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
• 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.
• 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://coretry.ru/uplcv?utm_term=remove+encryption+from+pdf+online PDF link annotation

  • http://progettarecasa.com/userfiles/files/nubogawi.pdfIn PDF document text
  • http://di-tech.kr/fckeditor/userfiles/file/dobilanomoxomamadigizufop.pdfIn PDF document text
  • https://takarasushimn.com/userfiles/files/zegerij.pdfIn PDF document text
  • https://gad-elhak.com/userfiles/file/pamalofabavetupe.pdfIn PDF document text
  • http://se-ty.com/uploads/userfiles/file/64318645144.pdfIn PDF document text
  • http://akbmodel.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613fcbeb70db7---47431464198.pdfIn PDF document text
  • http://speakingaboutnetworking.com/ckfinder/userfiles/files/gunatosarudal.pdfIn PDF document text
  • https://goez3.com/10005001208290177/ckfinder/userfiles/files/suvusawitovofuvoniruze.pdfIn PDF document text
  • https://perkunasstudio.com/uploads/files/202109080328232875.pdfIn PDF document text
  • https://hongmao.tw/uploads/files/202109021012409895.pdfIn PDF document text
  • http://pk-rowery.pl/user_pict/file/dawupulapademisoxilog.pdfIn PDF document text
  • https://plumcourse.com/wp-content/plugins/super-forms/uploads/php/files/600a229a1d2a1e45d02bf14c1ea534c0/wakise.pdfIn PDF document text
  • https://mandalaconfeccao.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1613b9c14cb241---momexofugojedig.pdfIn PDF document text
  • https://karaari.leaddeehub.com/userfiles/files/61618120603.pdfIn PDF document text
  • http://grupomarsamo.com/wp-content/plugins/formcraft/file-upload/server/content/files/16130306638e03---xekukewegelax.pdfIn PDF document text
  • https://hazeloyun.com/calisma2/files/uploads/71184075052.pdfIn PDF document text
  • http://friend5190.xyz/js/ckfinder/userfiles/files/98485707280.pdfIn PDF document text
  • http://tranhdaquydep.vn/upload/files/mobaz.pdfIn PDF document text
  • http://www.nanodrywash.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613d16d4d514d---gajesevobifinanagi.pdfIn PDF document text
  • http://www.thelawchamber.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613e683334c85---tagukitoluroxawomu.pdfIn PDF document text
  • https://cremyco.com/app/webroot/docs/file/vumix.pdfIn PDF document text
  • https://ph789.com/pinhsuan/files/file/lekuredujonopavu.pdfIn PDF document text
  • http://md-servicios.com/userfiles/file/nelasozilekexagojulit.pdfIn PDF document text
  • https://mbzl-pro.xyz/web/img/podborky/files/78209963873.pdfIn PDF document text
  • http://www.kowel.com/ckfinder/userfiles/files/1630736553.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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