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.
• 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://catamma.ru/uplcv?utm_term=disable+android+lock+screen PDF link annotation

  • http://ledspectrumthai.com/ckfinder/userfiles/files/55287190373.pdfIn PDF document text
  • https://doanandieuduong295doson.vn/namthuan/images/news/files/vojerunetaruruzesodivako.pdfIn PDF document text
  • http://ritadas.in/userfiles/file/somutubegelerimezojaseta.pdfIn PDF document text
  • https://cqc-material.com/app/webroot/userfiles/files/82218632172.pdfIn PDF document text
  • http://ambulatorioveterinariovianello.eu/userfiles/files/vepemopigeladasuvevira.pdfIn PDF document text
  • http://viettranslators.com/webroot/img/files/muxokamumisusafefo.pdfIn PDF document text
  • http://okna-kursk.ru/page_edit/_samples/userfiles/files/8981585709.pdfIn PDF document text
  • http://mixmarketing.vn/upload/fck/file/23587583026.pdfIn PDF document text
  • http://emilygrilltogo.com/uploads/files/loxid.pdfIn PDF document text
  • http://www.mediacomriccione.it/wp-content/plugins/formcraft/file-upload/server/content/files/1613d9c8ab4cb2---77260203150.pdfIn PDF document text
  • http://xedaptheduc.net/app/webroot/uploads/files/gakebowowononuzenuluwa.pdfIn PDF document text
  • https://riverasphotovideo.com/wp-content/plugins/formcraft/file-upload/server/content/files/16137f125d8d39---33000360961.pdfIn PDF document text
  • http://hoanggiaphatland.com/uploads/image/files/74917105463.pdfIn PDF document text
  • http://corporatiegids.nl/uploads/files/wirolizesasotofixuniwag.pdfIn PDF document text
  • http://upservice.expert/admin/ckfinder/userfiles/files/206215647.pdfIn PDF document text
  • http://hotelpenza58.ru/ckfinder/userfiles/files/36577617116.pdfIn PDF document text
  • http://www.whirlpool-beachcomber.at/wp-content/plugins/formcraft/file-upload/server/content/files/1613021389b274---93010702681.pdfIn PDF document text
  • https://soechi.net/userfiles/file/bezekujib.pdfIn PDF document text
  • http://ourconn.com/userfiles/file/202109082204359359.pdfIn PDF document text
  • https://chandrakantmusicacademy.org/ckfinder/userfiles/files/94303717250.pdfIn PDF document text
  • https://nestsearch.in/admin/uploads/file/vediwibemusasomapozozaw.pdfIn PDF document text
  • http://semihkerpiccilervesupersound.com/upload/file/73909329496.pdfIn PDF document text
  • https://boldvision.tv/wp-content/plugins/formcraft/file-upload/server/content/files/161301fcecae60---34537533869.pdfIn PDF document text
  • http://ylplj.com/ckfinder/userfiles/files/68897930987.pdfIn PDF document text
  • http://smolensk-bakaleya.ru/userfiles/file/dexibonibu.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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