Malicious PDF — malware analysis report

Heuristics 7

• 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 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://kstarsmall.net/userfiles/file///45904417921.pdf In PDF document text

  • http://payassistinc.com/wp-content/plugins/formcraft/file-upload/server/content/files/16078d305b8718---vofilenawamevusufusef.pdfIn PDF document text
  • https://him-home.ru/wp-content/plugins/super-forms/uploads/php/files/4bea125138cfad3f72bde80599e9f1e5/65928509276.pdfIn PDF document text
  • http://rts-3.ru/upload/files/57929157982.pdfIn PDF document text
  • http://alfavs.eu/userfiles/file/56974529483.pdfIn PDF document text
  • http://sddshchb.com/userfiles/file/Fl202108192302049934.pdfIn PDF document text
  • https://www.fifatravels.com/wp-content/plugins/formcraft/file-upload/server/content/files/160791c6d484b9---48722524362.pdfIn PDF document text
  • http://agiusfuneraldirectors.com/files/file/vimagowizejuwinit.pdfIn PDF document text
  • http://indel.sk/userfiles/file/rubojizelige.pdfIn PDF document text
  • https://www.hauptsache.cc/wp-content/plugins/formcraft/file-upload/server/content/files/160bb6dd3a2202---64692652265.pdfIn PDF document text
  • http://grafiport.com/userfiles/file/95019676526.pdfIn PDF document text
  • http://ehoron21.mn/uploads/files/57229573861.pdfIn PDF document text
  • https://www.chartsunlimited.com.ph/wp-content/plugins/formcraft/file-upload/server/content/files/1609c2028df22b---72248256645.pdfIn PDF document text
  • https://lisacutler.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a4b355ab886---vasivitenag.pdfIn PDF document text
  • https://trichynext.com/wp-content/plugins/super-forms/uploads/php/files/0e41c68a4a9ce6cb8079f23f20453732/56243488400.pdfIn PDF document text
  • http://agnieszkapawlik.com/userfiles/file/93356317106.pdfIn PDF document text
  • http://lilit-realty.com/wp-content/plugins/super-forms/uploads/php/files/vm7qlhvh3d92hbhc87j2v1no03/46658320442.pdfIn PDF document text
  • http://wjvanderheidedienstverlening.nl/uploads/file/73107020430.pdfIn PDF document text
  • https://pu-sk.com/app/templates/js/ckfinder/userfiles/files/varadafigulenuzoza.pdfIn PDF document text
  • http://mispuntossaga.com/campannas/file/xisubexipava.pdfIn PDF document text
  • http://francescofesta.it/userfiles/files/2782554257.pdfIn PDF document text
  • http://tdbm.vn/upload/files/725906491.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3CAf4wW3hvY/uplcv?utm_term=determination+of+viscosities+of+different+lubricating+oils+project+pdfPDF 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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