Malicious PDF — malware analysis report

Heuristics 7

• 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 high 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: call-to-action link host does not match the impersonated brand: https://ttraff.ru/wix?keyword=metro+exodus++size.
• Callback phishing phone lure medium SE_CALLBACK_LURE
  Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
• SEO-redirector lure link (multi-word utm_term) low PDF_SEO_UTM_REDIRECTOR_LINK
  PDF contains a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the search-keyword gateway used by the 'free document download' phishing family. Surfaced as an IOC; on its own this is a low-confidence signal.
• 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://ttraff.ru/wix?keyword=metro+exodus++size In PDF document text

  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://static.usrfiles.com/ugd/409ca8_de708bb7f294461188d9f315aba21e61.pdfIn PDF document text
  • https://static.usrfiles.com/ugd/a7074a_d7f4470bb2db4eaf94a530513f519d06.pdfIn PDF document text
  • https://static.usrfiles.com/ugd/3aee12_f38dfde3e55b48d8b2cf4961428725c9.pdfIn PDF document text
  • https://static.usrfiles.com/ugd/96564c_40a4a90809ff4e7abc49e5bfaae18fab.pdfIn PDF document text
  • https://static.usrfiles.com/ugd/b8c837_ff8c30257aba4219b1308f45bf70bb05.pdfIn PDF document text
  • https://static.usrfiles.com/ugd/cac9e4_77654f80ef7c41c59785024f60c3c3ee.pdfIn PDF document text
  • https://static.usrfiles.com/ugd/b8c837_62efa845e940446e88105a7eda97732d.pdfIn PDF document text
  • https://static.usrfiles.com/ugd/067ecb_f7408040f04f41b7934712abcdd374e8.pdfIn PDF document text
  • https://static.usrfiles.com/ugd/a1fb72_8a1ea8f0b3ee4df289f3aadb3f122a3e.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0435/8845/2515/files/xakoresezonusononowe.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0435/9448/1823/files/pakonejub.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0432/5857/7046/files/ray_optics_for_iit_jee.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0437/6687/4269/files/15126950724.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0432/5815/1072/files/super_shredded_8_vs_shortcut_to_shred.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0429/9515/5105/files/spreadsheet_compare_crashes.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0439/2442/2811/files/there_once_was_a_girl_from_nantucket.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0436/8223/4521/files/lich_king_hearthstone_guide_witchwood.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0460/8701/2516/files/spellsword_build_skyrim.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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