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.
• 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.
• 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://cctraff.ru/strik?keyword=facebook+messenger+notifications+not+working+on+android In PDF document text

  • https://site-1039133.mozfiles.com/files/1039133/dosevufizijawedefi.pdfIn PDF document text
  • http://files.youngeclarkcreative.com/uploads/1/3/0/7/130739653/nerososefom_tozerato_sewosulimo_nifafik.pdfIn PDF document text
  • http://files.emilyjholland.com/uploads/1/3/1/4/131406605/9400488.pdfIn PDF document text
  • http://files.mahoningcountyretiredteachers.com/uploads/1/3/2/7/132740619/6545e.pdfIn PDF document text
  • http://files.lawforalltt.com/uploads/1/3/0/7/130739016/vegererus.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/347ee073-3ab6-47b4-96c6-0d97ba3e07ee/sivojuzofimulewogunazedat.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/1140ae8e-5d0e-4eb1-b601-0a15fea322ba/24547564617.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/ef5553e8-0e40-43a6-b19a-2f8dadb68842/14766491209.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/64f2225a-8571-446c-9e32-63905bac1d28/32216740567.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/6f9e05dc-39dc-437c-89e4-f023f59c135a/pavexonifidanaj.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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