Malicious PDF — malware analysis report

Heuristics 8

• 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://wegevarudaredi.weebly.com/uploads/1/3/4/3/134356518/wenexejixulo.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.
• Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
  Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
• MFA / one-time-code harvesting lure high SE_MFA_LURE
  Document asks for a one-time code, authenticator approval, or MFA confirmation — consistent with credential phishing kits that steal session tokens or abuse multi-factor authentication
• 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://traffking.ru/123?keyword=hotmail+com+login+to+outlook In PDF document text

  • https://cdn-cms.f-static.net/uploads/4367911/normal_5f9d3d98a8b82.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4405687/normal_5f999776b1503.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4444378/normal_5fa16dbbeca93.pdfIn PDF document text
  • https://wegevarudaredi.weebly.com/uploads/1/3/4/3/134356518/wenexejixulo.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4417648/normal_5fa52d585c7cd.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4449012/normal_5f9dc8cd79f60.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4413225/normal_5fa4f8ff1c4ce.pdfIn PDF document text
  • https://sofakixejiz.weebly.com/uploads/1/3/4/2/134265497/d4564ecdad82.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4383467/normal_5f93021bd0576.pdfIn PDF document text
  • https://vodexekuteb.weebly.com/uploads/1/3/0/7/130776001/563128.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365570/normal_5f8708ca6c49c.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4387698/normal_5f8e26e7d0560.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/3d400867-27bf-41d5-ae86-12628cc38562/motexukalut.pdfIn PDF document text
  • https://jivudiwori.files.wordpress.com/2020/11/xulozemimekujodenej.pdfIn PDF document text
  • https://towafafu.files.wordpress.com/2020/11/lorosikedudikofi.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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