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
• 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.
• Clickable URI points to raw IP address medium PDF_URI_IP_LITERAL
  PDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
• 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://khotelmarket.com/FileData/ckfinder/files/20210908_F2206B4F6F0923BE.pdf In PDF document text

  • http://noahmission.org/dataroom/file/67212319793.pdfIn PDF document text
  • http://malopolskiszlakwinny.pl/upload/File/vukezinutawe.pdfIn PDF document text
  • http://ambulatorioveterinariorigolon.eu/userfiles/files/41776949501.pdfIn PDF document text
  • http://indyztyle.com/ckfinder/userfiles/files/93140527147.pdfIn PDF document text
  • http://farmina.ru/uploads/files/95818060624.pdfIn PDF document text
  • http://kdsonline.org/userfiles/file/3350674659.pdfIn PDF document text
  • http://qhzs88.com/admin/fckeditor_upfiles/file/2021090508150680554.pdfIn PDF document text
  • http://zhuoer.ltd/userfiles/file/61025019378.pdfIn PDF document text
  • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612f972aed839---61894417817.pdfIn PDF document text
  • http://schokoladenfontaene.de/idata/67769278102.pdfIn PDF document text
  • http://ontheedgeofnow.com/wp-content/plugins/formcraft/file-upload/server/content/files/16140eac04747f---48519126188.pdfIn PDF document text
  • http://yugang360.com/upload_fck/file/2021-9-10/20210910093559105097.pdfIn PDF document text
  • http://www.danvillern.com/wp-content/plugins/super-forms/uploads/php/files/6e1223005a1c246f0c609b15c09421e4/dewamulufezewid.pdfIn PDF document text
  • https://internationallanguagenavigators.com/media/66187471214.pdfIn PDF document text
  • http://xinyaoqiye.com/upload_fck/file/2021-9-11/20210911080114187307.pdfIn PDF document text
  • http://showpalmedical.com/userfiles/97061490294.pdfIn PDF document text
  • http://erkerlaender.de/wp-content/plugins/formcraft/file-upload/server/content/files/1613b2b761f889---83916242149.pdfIn PDF document text
  • http://glavis.biz/userfiles/file/65656541970.pdfIn PDF document text
  • http://alacarte-husum.de/userfiles/file/13048920609.pdfIn PDF document text
  • http://104.156.58.56/~web2inbox/wp-content/plugins/formcraft/file-upload/server/content/files/1613ef6e458157---27522815650.pdfPDF link annotation
  • http://daiwavn.com/uploads/image/files/ramokutazikowelokol.pdfIn PDF document text
  • http://tuzvedo.hu/elemek/file/22527939919.pdfIn PDF document text
  • https://novitas.ro/files/lebinege.pdfIn PDF document text
  • http://www.salpasafarit.fi/tiedostot/files/27462420265.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/3vuEKuznOb8/uplcv?utm_term=xiaomi+redmi+note+9s+battery+lifePDF 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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