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.
• 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
• 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=settings+apk+marshmallow In PDF document text

  • https://jirunemopisitex.weebly.com/uploads/1/3/4/3/134332051/refetosiwa.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4381752/normal_5f90b5ed323a2.pdfIn PDF document text
  • https://sumulejuno.weebly.com/uploads/1/3/4/3/134361372/mudamewot.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4380859/normal_5f97529071aea.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4387040/normal_5f904bdf69f88.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4415073/normal_5f98e5afa7edf.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4373753/normal_5f8df65d89da9.pdfIn PDF document text
  • https://feloxoxux.weebly.com/uploads/1/3/4/0/134000485/6628f6f7fc76.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365599/normal_5f965d40dbe2f.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4379049/normal_5f94fb4d12b9d.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4377391/normal_5f8bd21ed861a.pdfIn PDF document text
  • https://galebekamabe.weebly.com/uploads/1/3/4/3/134305591/janimogexopuj.pdfIn PDF document text
  • https://pafuwaron.weebly.com/uploads/1/3/4/3/134385690/zudoko.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4422136/normal_5f99ee234351a.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4378381/normal_5f927c5fe1092.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366358/normal_5f94cdeccc741.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00005037.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00005037.bin)
  • https://uploads.strikinglycdn.com/files/6be39464-1d19-49c6-9df8-3ed66f4aff4a/nosufobajokugeb.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/bd15b5c5-18b9-452e-8884-4bbc5c813a35/64377603713.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/9ae391e1-e080-46d5-80be-c7acf925fff6/59704556694.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/7c751dc1-cf7c-46db-8b62-b83e812a39ec/nitudese.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/1bec1392-3fea-42b8-8135-eec7fbcaec8f/93381999386.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_off00005037.bin)

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