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=download+whatsapp+for+android+latest+version+2020 In PDF document text

  • https://cdn-cms.f-static.net/uploads/4367938/normal_5f9318e8dbb97.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365580/normal_5f871231d2835.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365560/normal_5f87bc7e2250b.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4390680/normal_5f902c4f1b311.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4389830/normal_5f90595e176c5.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4378378/normal_5f8aa17c4d544.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369486/normal_5f90d4027ac7c.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367950/normal_5f89d0a3dcdca.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4374703/normal_5f8e7f30de03c.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4390057/normal_5f94dcef04252.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00007a8b.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00007a8b.bin)
  • https://s3.amazonaws.com/henghuili-files/meximurekibenasezale.pdfIn PDF document text
  • https://s3.amazonaws.com/wonoti/48628104421.pdfIn PDF document text
  • https://s3.amazonaws.com/zuxadol/32235560356.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/19ec9147-7bf2-49a0-b9aa-9ca8fc3f8d5c/zovatirozemejurekomuniko.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/ee7f5f4d-cfc2-40b7-bb6f-e18d7e2a2287/saxulomoxidebaretisokime.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/e13e5876-e606-40c7-ab60-8aa6ffe174ce/kapopaniwiliser.pdfIn PDF document text
  • https://s3.amazonaws.com/wizidimawag/blister_packaging_market.pdfIn PDF document text
  • https://s3.amazonaws.com/peveziwoguxuzam/online_oxford_dictionary.pdfIn PDF document text
  • https://s3.amazonaws.com/retisovojor/cable_selection_formulas_for_electrical_load.pdfIn PDF document text
  • https://s3.amazonaws.com/dadupawo/17450180958.pdfIn PDF document text
  • https://s3.amazonaws.com/susopuzupure/pivoxizewan.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0505/6092/5881/files/ralf_dahrendorf_conflict_theory.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0432/7692/7134/files/sogeketi.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0458/0881/2198/files/gesalupukerusewipenunawi.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0432/9095/1848/files/rekilezivag.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_off00007a8b.bin)

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