Malicious PDF — malware analysis report

Heuristics 8

• 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.
• LOLBin token sequence in document text high SE_LOLBIN_RUN_COMMAND
  Extracted document text contains a Windows script/execution tool name (PowerShell, mshta, cmd, rundll32, regsvr32, …) within 220 characters of a dangerous flag, command verb, or URL. This is a visible 'run this' instruction in HTML/PDF/RTF lure bodies, or — in macro-laden Office files — the macro's own string-pool entries appearing adjacent in extracted text.
• 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.
• Urgency / deadline lure low SE_URGENCY_LURE
  Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
• 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.com/pify?keyword=ntpc+group+d+admit+card In PDF document text

  • http://files.oberonmassage.com/uploads/1/3/0/8/130813841/bijemaz.pdfIn PDF document text
  • http://vujona.elitedancechampionship.com/uploads/1/3/0/7/130739206/64a4d1fa8162a3.pdfIn PDF document text
  • http://zujaniniv.tayahanson.com/uploads/1/3/0/7/130776791/85d41f553409.pdfIn PDF document text
  • http://files.ibewlocal176.org/uploads/1/3/1/3/131379789/jalogagar_duximekux_nimuwobab_kulap.pdfIn PDF document text
  • http://sedoxex.elksfairwayfoundation.org/uploads/1/3/1/3/131398125/8157139.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://cdn.shopify.com/s/files/1/0431/1751/0818/files/39978161613.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0447/1973/4938/files/uninstall_powershell_windows_10.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0445/4963/6255/files/modoz.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0437/1798/4405/files/asciidoctor_title_page.pdfIn macro / runtime command snippet
  • https://cdn.shopify.com/s/files/1/0438/3365/5446/files/for_loop_c.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0437/6759/5169/files/hemolytic_uremic_syndrome_pediatrics.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0433/3685/9813/files/35433329757.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0432/9367/1588/files/88542565269.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/53262414385.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0453/2440/2843/files/hindustani_raga_notes.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0433/1634/7035/files/multiplication_of_binomials_examples_with_answers.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0435/9458/0136/files/java_update_checker.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0431/5673/4109/files/49903263687.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
  • https://cdn.shopify.com/s/files/1/In macro / runtime command snippet
  • http://scripts.sil.org/OFLIn PDF document text

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