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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
  Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
• 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.
• 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://cctraff.ru/123?keyword=cinderpelt+and+firestar In PDF document text

  • https://wefolukozik.weebly.com/uploads/1/3/1/4/131406413/e1b1ab9.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367294/normal_5f966f283a499.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4370764/normal_5f88bcc1c08f0.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00008ea7.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00008ea7.bin)
  • https://uploads.strikinglycdn.com/files/1526462f-55a0-40f0-b871-12f5681f07f8/integrated_chinese_4th_edition_workbook_answer_key.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/7373c785-534a-49b5-b5a1-a8aba81cf7f7/gtx_780_vs_gtx_970.pdfIn PDF document text
  • https://s3.amazonaws.com/megelugik/paxujarekalav.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0500/4433/8329/files/douglas_macarthur_elementary_school_modernization.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0505/2750/2508/files/aplikasi_edit_video_terbaik_android_apk.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0496/7307/6892/files/nmu_result_2020_sybsc.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0501/1223/3667/files/101_bus_timetable_manchester.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/9a5f639f-60ea-4946-b67d-e57e9f65aff3/difuxalebot.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/797a2c3d-9a06-43c2-bc0f-88311507cd18/brian_tracy_eat_that_frog.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0482/1811/2154/files/o_talentoso_ripley.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0266/7731/3713/files/esl_short_vowel_sounds_worksheets_for_adults.pdfIn PDF document text
  • https://s3.amazonaws.com/pazifetanegapu/genetics_neet_questions_download.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0428/1994/4615/files/83044013431.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/e314bd60-5488-45da-be47-4cd2ff59f87f/80699771625.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 extracted file (font_00_sfnt_off00008ea7.bin)

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