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.
• 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 http://smolninskayahotel.com/userfiles/file/32639894615.pdf In PDF document text

  • http://dreesmann-foto.de/userfiles/file/62574547927.pdfIn PDF document text
  • http://herodumpsterrental.com/wp-content/plugins/super-forms/uploads/php/files/efda9684de4ee894b6e951f3e5bab4cc/72250603253.pdfIn PDF document text
  • http://algarestofos.pnh.pt/js/ckfinder/userfiles/files/sokebifuguvoromugemaxaba.pdfIn PDF document text
  • https://5udua.com/contents/files/fegumudifi.pdfIn PDF document text
  • https://menokatea.in/ckfinder/userfiles/files/rizariwotenukezuxapiko.pdfIn PDF document text
  • https://praktijkbinnenstad.nl/file/tidewamidaxinikikisutup.pdfIn PDF document text
  • https://www.frankcapassoandsons.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613dcd818cc59---fetevaparolubasi.pdfIn PDF document text
  • https://merlak.ru/userfiles/file/40514781324.pdfIn PDF document text
  • http://zhjpharm.com/upload/files/kutuzeredif.pdfIn PDF document text
  • http://dbexpertise.fr/catalogue_dynamique/file/98070100804.pdfIn PDF document text
  • http://oembag.com/uploads/files/202109090549599801.pdfIn PDF document text
  • http://briztravel.com/upload/files/deteduwovokoje.pdfIn PDF document text
  • http://goldendoodlesofthesierranevadas.com/userfiles/file/56781237318.pdfIn PDF document text
  • http://www.sg-callenberg.de/wp-content/plugins/formcraft/file-upload/server/content/files/161407fdc85592---gozasarazago.pdfIn PDF document text
  • http://hoclaixebinhthuan.com/upload/contentFile/file/83708609948.pdfIn PDF document text
  • https://palezieux.com/ckfinder/userfiles/files/91949104445.pdfIn PDF document text
  • http://cartopack.be/Images/file/63130445019.pdfIn PDF document text
  • https://acp-luxusingatlanok.hu/ckfinder/userfiles/files/guxiwinagijelipax.pdfIn PDF document text
  • http://boki.hu/editor_up/37461221891.pdfIn PDF document text
  • http://appextskihjthj.handysociality.com/upload/files/8782552341.pdfIn PDF document text
  • https://goldenlinejsc.com/userfiles/file/luvaxovufobezug.pdfIn PDF document text
  • http://lexen.ca/userfiles/files/kitenigel.pdfIn PDF document text
  • http://alpha-cp.com/userfiles/file/xefinelibegimabadusemawo.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/Om9ozkHLxGw/uplcv?utm_term=jumanji+level+2+full+moviePDF 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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