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.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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://cdseoulps.com/uploadfile/fckeditor/file/72048973284.pdf In PDF document text

  • http://call.ae/wp-content/plugins/formcraft/file-upload/server/content/files/16078253785e12---45704515992.pdfIn PDF document text
  • https://legacydockandmarine.com/wp-content/plugins/super-forms/uploads/php/files/d86ab3ab24817dc01b63872b9cb00cf8/vabox.pdfIn PDF document text
  • http://zezoalza.com/ckupload/files/jakufevovudinuwupuduka.pdfIn PDF document text
  • http://www.peplex.it/wp-content/plugins/formcraft/file-upload/server/content/files/160bfb90fe27c9---6410072711.pdfIn PDF document text
  • http://shipagents.nl/uploadfiles/file/2430128897.pdfIn PDF document text
  • https://sk-developers.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607aeadeb326e---47709606461.pdfIn PDF document text
  • https://www.helpagesl.org/wp-content/plugins/formcraft/file-upload/server/content/files/160c4239b6a45c---46979491118.pdfIn PDF document text
  • https://elicopter-de-inchiriat.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1608294cd68460---80556915503.pdfIn PDF document text
  • http://d4squebec.com/clients/f/f5/f58105ca183540932673f5bf18e62671/File/6573997096.pdfIn PDF document text
  • https://macleanpinesdrivingschool.com.au/wp-content/plugins/super-forms/uploads/php/files/96cf473c41544d983bf8cb795a5f20dd/6412550044.pdfIn PDF document text
  • http://comicpapyrus.com/wp-content/plugins/super-forms/uploads/php/files/c3ef86d489ab8a25d8f0291a2027236f/3328466567.pdfIn PDF document text
  • http://www.nuricomuvakfi.org/wp-content/plugins/super-forms/uploads/php/files/4homidup6l7hapgad43panuq26/sorexepubo.pdfIn PDF document text
  • https://www.stjohnhomelessshelter.org/wp-content/plugins/super-forms/uploads/php/files/f104a3bc551ce531fd0b4b9338ac1b99/74022386724.pdfIn PDF document text
  • http://guides2alpes.fr/uploads/file/wofufuxatumitulosaro.pdfIn PDF document text
  • https://sevsport.info/wp-content/plugins/super-forms/uploads/php/files/6e4a88675eeca66e8b4d6dc4c86a7a10/35169262055.pdfIn PDF document text
  • https://devcons.org/uploads/userfiles/files/27637139487.pdfIn PDF document text
  • http://thongthien.vn/upload/files/59473566319.pdfIn PDF document text
  • https://www.acptechnologies.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bbbce083228---xuxutofaxilibukexesawukip.pdfIn PDF document text
  • https://schreinerheusi.de/wp-content/plugins/formcraft/file-upload/server/content/files/1606f9b5fa3fc1---30802862389.pdfIn PDF document text
  • http://artistalexanderkanevskywinnerinternationalaward.com/clientMedia/file/jebosopefogubun.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/PmAiG5ZyT-k/uplcv?utm_term=how+to+apply+for+korean+government+scholarshipPDF 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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