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.
• Remote-support tool lure high SE_REMOTE_SUPPORT_LURE
  Document instructs the user to install, open, or connect with a remote-support tool such as AnyDesk, TeamViewer, Quick Assist, or ScreenConnect — high-risk in an unsolicited document
• 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://crysiq.ru/uplcv?utm_term=photo+id+editor+for+pc PDF link annotation

  • http://tbeaindia.com/userfiles/file/xetilazimo.pdfIn PDF document text
  • http://huichem.com/ckfinder/userfiles/files/giminanetow.pdfIn PDF document text
  • https://www.hdcorp.com.br/wp-content/plugins/super-forms/uploads/php/files/6m3re8n6l6s5i2ic8hri723lc3/45366703844.pdfIn PDF document text
  • https://stthomasorthodoxchurchsouthpampady.com/userfiles/file/69317002878.pdfIn PDF document text
  • http://de.ruben.pl/ckfinder/userfiles/files/5592588828.pdfIn PDF document text
  • https://www.marbelitesa.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/16135ddb15365b---niwidazadit.pdfIn PDF document text
  • https://mylin.in/ckeditor/ckfinder/userfiles/files/nufujozap.pdfIn PDF document text
  • http://kino-cosmik.ru/sadm_files/20239319705.pdfIn PDF document text
  • https://anukulagrotech.com/ci/userfiles/files/34313144281.pdfIn PDF document text
  • http://livestocktool.com/d/files/87536467129.pdfIn PDF document text
  • http://imhkayseri.com/resimler/files/44241566895.pdfIn PDF document text
  • http://yonezawanet.jp/units/24250/zcycom/files/22263242487.pdfIn PDF document text
  • http://lmnn.ru/userfiles/file/92330544781.pdfIn PDF document text
  • https://hoffmanowska.pl/wp-content/plugins/formcraft/file-upload/server/content/files/16135e4e37256c---musadakideri.pdfIn PDF document text
  • https://ingatlanfelugyelet.hu/uploads/file/kudirevevo.pdfIn PDF document text
  • http://proart.by/media/file/vezosiba.pdfIn PDF document text
  • http://incomingmakedonia.com/files/files/wenesofaxiw.pdfIn PDF document text
  • http://iphonedown.com/ckfinder/userfiles/files/49121665552.pdfIn PDF document text
  • http://www.synagoge-stommeln.de/ckfinder/userfiles/files/bevumu.pdfIn PDF document text
  • http://www.barbazan-debat.fr/ckfinder/userfiles/files/3430100350.pdfIn PDF document text
  • https://reha.bg/content/upload/file/41964158490.pdfIn PDF document text
  • http://forma8.kz/ckfinder/userfiles/files/zidevu.pdfIn PDF document text
  • https://nailseasupportgroup.com/wp-content/plugins/super-forms/uploads/php/files/a4cb9e061352839ff3486a0d7027ed31/52416840969.pdfIn PDF document text
  • http://amtusa.com/wp-content/plugins/formcraft/file-upload/server/content/files/16136cb7891a38---6653184975.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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