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.
• 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.
• 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
• Fake invoice / payment lure low SE_INVOICE_LURE
  Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
• 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://gettraff.ru/pify?keyword=penn+state+alumni+transcript+request In PDF document text

  • http://kujukebu.theislandgreatbrak.com/uploads/1/3/1/1/131164250/nofinawowi.pdfIn PDF document text
  • http://guvumewa.allergysafekids.org/uploads/1/3/1/8/131857966/zukid_susitipezov_mozogezavalasus_lezenojiz.pdfIn PDF document text
  • http://files.pfcmooremess.com/uploads/1/3/0/7/130776072/65264bc54.pdfIn PDF document text
  • http://mipoxoza.getstravel.com/uploads/1/3/2/8/132816117/b75427fe5.pdfIn PDF document text
  • http://files.jenalang.com/uploads/1/3/1/3/131384555/vekeroredebol_judovuk_bekerapotuw_wagozupexewiwu.pdfIn PDF document text
  • http://valinav.senalista.com/uploads/1/3/1/6/131637814/3827651.pdfIn PDF document text
  • http://fozile.compasspublishing.org/uploads/1/3/2/7/132741214/ranezav_tidomofitub_bexaxu.pdfIn PDF document text
  • https://site-1039153.mozfiles.com/files/1039153/16350615126.pdfIn PDF document text
  • https://site-1038431.mozfiles.com/files/1038431/xatefuwivawugixuxipemavap.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://uploads.strikinglycdn.com/files/7a5c5384-0c2a-4f2c-b1bf-2c3a3204de33/tiladotune.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/bc6c1593-7e4d-48a4-bd99-7dfafc569ec1/88953269547.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/09e4db83-ddde-4b6d-9998-92f4b1a1a98c/nogarof.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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