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=version+code+android+manifest In PDF document text

  • https://cdn-cms.f-static.net/uploads/4370071/normal_5f88142a5af99.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4381529/normal_5f94f3f8d9657.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367938/normal_5f8d016af1b54.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367302/normal_5f93c5716c264.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4371553/normal_5f8a0dc731e80.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369309/normal_5f88df67c87a2.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4385231/normal_5f8c9710b3da7.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4375705/normal_5f8f8e5229ef5.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4381752/normal_5f8bbc49518b3.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4384628/normal_5f8f409aa8ab9.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4406229/normal_5f9524a3625a0.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4374984/normal_5f9507c84b60b.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368758/normal_5f8ebda0d8b1e.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369334/normal_5f8b9b728f448.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00006dd9.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00006dd9.bin)
  • https://cdn.shopify.com/s/files/1/0486/5589/2630/files/80663646453.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0435/8291/4723/files/82239047121.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0437/3318/8762/files/describing_peoples_appearance_and_personality_exercises.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0434/3827/6760/files/guluwapavoletoxolesop.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0439/2094/9403/files/78993409422.pdfIn PDF document text
  • https://s3.amazonaws.com/biwubeleba/attestation_sur_l_honneur_cpam.pdfIn PDF document text
  • https://s3.amazonaws.com/zuxadol/xobuwepivizevepaku.pdfIn PDF document text
  • https://s3.amazonaws.com/wonoti/labobojomavivikiwoda.pdfIn PDF document text
  • https://s3.amazonaws.com/luxelula/juzosinorurofagot.pdfIn PDF document text
  • http://schemas.android.com/apk/res/androidIn 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_off00006dd9.bin)

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