Malicious PDF — malware analysis report

Heuristics 5

• PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
  PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
• 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
• 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://yafferge.ru/wix?keyword=introduction+to+biotechnology+3rd+edition+pdf+free In PDF document text

  • https://xemageka.weebly.com/uploads/1/3/1/3/131380316/woxige.pdfIn PDF document text
  • http://alsamcctv.com/43282739769zhupr.pdfIn PDF document text
  • http://buledumemo.iblogger.org/video_converter_free_latest_version.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4464724/normal_6011070b31844.pdfIn PDF document text
  • http://dovulup.iblogger.org/93384230368.pdfIn PDF document text
  • http://hookup153.online/android_adb_shell_uninstall_app7eoyh.pdfIn PDF document text
  • http://murunabo.iblogger.org/50513895897.pdfIn PDF document text
  • https://serawododi.weebly.com/uploads/1/3/4/8/134885696/3722275.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4426830/normal_5fcd6be2abb08.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4457592/normal_5fd5f65e24357.pdfIn PDF document text
  • http://vakekaninu.iblogger.org/android_game_emulator_for_mac.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • http://fofepiroxazu.epizy.com/how_to_write_a_short_essay_250_words.pdfIn PDF document text
  • https://s3.amazonaws.com/polojuliragam/nasejamiruviteke.pdfIn PDF document text
  • https://s3.amazonaws.com/jolunenafobuw/cgp_ks2_maths_answers_online.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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