Malicious PDF — malware analysis report

Heuristics 6

• ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
• PHP webshell / backdoor source high WEBSHELL_PHP
  The file contains PHP server-side code with the signature of a webshell/backdoor (request input fed to a command/code-exec sink). A webshell takes attacker input from an HTTP request and runs commands/code on the server. Flagged as a malicious hacktool artifact even when carried inside a document or archive — the code does not execute from the carrier, but the file is a webshell.
• Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
  PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
• 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://resalured.ru/wix?keyword=cursive+writing+generator+for+tattoos PDF link annotation

  • https://static.s123-cdn-static.com/uploads/4387938/normal_5fe453c666a7a.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4468812/normal_5ffcab94ec0d2.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4497079/normal_5fe8a9890ab64.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4387918/normal_5fd7dd05d4820.pdfIn PDF document text
  • https://cdn.sqhk.co/furafurume/ie3KJMa/hot_wheels_real_riders_tires_for_sale.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4368474/normal_5fe2cfc328a9b.pdfIn PDF document text
  • https://cdn.sqhk.co/ponesigis/igOSaif/super_arcade_racing_full_apk.pdfIn PDF document text
  • https://cdn.sqhk.co/vitimosugu/jrDjaDp/seguidores_likes_para_tiktok_app.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4416154/normal_60003a5fb3557.pdfIn PDF document text
  • http://nuveclovet.xyz/apache_software_foundation_tomcat_8._0_free3ohhc.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4449014/normal_601b1a6b201b4.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4368506/normal_5fcf3c83705b6.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4460690/normal_6042a7bc1dec9.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369495/normal_5fd3595c12b28.pdfIn PDF document text
  • http://questotzvezd.space/http_biologycorner._com_worksheets_controls._html_answers8rjp2.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4445532/normal_603907359b894.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4421934/normal_5febac74003cb.pdfIn PDF document text
  • https://cdn.sqhk.co/wodelaganav/jiuIxie/91509719986.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://uploads.strikinglycdn.com/files/d1df9e3b-72ac-4caa-8456-bd2e8ac5e679/arris_tg862_reset_password.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/bb67be3e-af0d-4ec0-9dc1-6f605ebfb168/91461992707.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/eab6ca5c-d435-4d8e-b5a5-525efb27863b/why_isnt_my_pressure_washer_building_pressure.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://scripts.sil.org/OFLIn PDF document text

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