Malicious PDF — malware analysis report

Heuristics 9

• 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.
• Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHA
  Document displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
• 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.link/wix?keyword=prodigy+hack+generator+no+human+verification.
• Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
  Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
• QR-code redirect lure medium SE_QR_LURE
  Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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.link/wix?keyword=prodigy+hack+generator+no+human+verification In PDF document text

  • http://files.wbyu.net/uploads/1/3/1/3/131379290/wuwumiwa_sewokab.pdfIn PDF document text
  • http://files.cninc.org/uploads/1/3/2/7/132740479/5324237.pdfIn PDF document text
  • http://files.hawaiistylecheer.com/uploads/1/3/1/3/131379014/judadebinetuzi-zotedusemuku-ziwusonevedaxen.pdfIn PDF document text
  • http://ramivulux.crossfitparsons.com/uploads/1/3/1/0/131070674/1141443.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/1/0433/9944/6693/files/29804174488.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0477/2580/5724/files/microsoft_access_templates_2018.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0432/2279/4395/files/240409660.pdfIn PDF document text
  • https://75b35160-dea0-464e-8dd0-b1e95085fadc.filesusr.com/ugd/54bec1_3b21d1d17378497c947fdb89c7be3ebd.pdf?index=trueIn PDF document text
  • https://c7fd87de-df1b-42f2-bdec-4bbdc54ce438.filesusr.com/ugd/b1b3ad_35f6b3aa634e4eb180b10179004c4193.pdf?index=trueIn PDF document text
  • https://9f605a69-0b6c-404b-84ce-9e4ceecfd7c7.filesusr.com/ugd/7c1f05_7d9a410b67be4bf7b351377c16febaa4.pdf?index=trueIn 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://savannah.gnu.org/projects/freefont/In PDF document text
  • http://www.gnu.org/licenses/In PDF document text
  • http://www.gnu.org/copyleft/gpl.htmlIn PDF document text
  • http://scripts.sil.org/OFLIn PDF document text

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