Malicious PDF — malware analysis report

Heuristics 6

• 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.
• Brand-impersonation credential phishing lure critical SE_BRAND_CREDENTIAL_PHISH
  Document impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: action link to abused redirector https://fijojonibiw.weebly.com/uploads/1/3/2/6/132681787/jibigamefomoni.pdf.
• 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=classifying+bacteria+worksheet+answers In PDF document text

  • https://fijojonibiw.weebly.com/uploads/1/3/2/6/132681787/jibigamefomoni.pdfIn PDF document text
  • https://kiseridebajesa.weebly.com/uploads/1/3/1/4/131408791/4994786.pdfIn PDF document text
  • https://fumumakol.weebly.com/uploads/1/3/4/0/134017799/xewoxux-xazapedalulew.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4373516/normal_5f8d52b985e5e.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4387411/normal_5f8f64881bef1.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4416514/normal_5f98f1e662c47.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4379974/normal_5f95fd2697698.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368506/normal_5f8af49ff0c7c.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00004d90.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00004d90.bin)
  • https://uploads.strikinglycdn.com/files/85f08b7e-94d0-4084-aac1-cdc16916505a/wilton_tip_18.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/8fb084c1-12b0-4e92-8264-97d4244654f2/folimuba.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/bb24dc2b-3076-4596-9840-51c8abe06a82/guide_words_practice_worksheet.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/7ec6de3e-0f85-4664-b0e1-ba2308726096/xalimujilojagup.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0434/4158/6332/files/instagram_followers_manager_apk.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0482/7168/7835/files/lubokod.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0430/8389/0850/files/ruwowexexevuginusave.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0500/8382/3807/files/likujesisukaxe.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0439/1731/2152/files/bawototogefodasuv.pdfIn PDF document text
  • https://s3.amazonaws.com/piwupevivotixi/que_es_la_angiografia.pdfIn PDF document text
  • https://s3.amazonaws.com/henghuili-files2/dolufikufexobuj.pdfIn PDF document text
  • https://s3.amazonaws.com/wulagisi/19437277200.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/ab760ee2-70eb-4901-9559-6b25a4466846/78754350844.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/dda74cef-3087-4ded-8995-f41b7d542d75/pamelitenarijujoxozuruvam.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/0124f2ac-77a0-4634-9075-2635377ac09a/jezaledusire.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/ec328646-d830-4265-bb1b-97921a01efb9/principles_of_information_systems_11th_edition_download.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_off00004d90.bin)

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