Malicious PDF — malware analysis report

Heuristics 7

• 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.
• 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
• External URI info PDF_URI
  PDF contains an external URL action
• 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://traffset.ru/123?keyword=act+test+february+2020 PDF link annotation

  • https://juzugimigiroteg.weebly.com/uploads/1/3/2/3/132302883/9bd2a5.pdfIn PDF document text
  • https://jogapemufa.weebly.com/uploads/1/3/4/4/134492880/4294122.pdfIn PDF document text
  • https://wesojejupeledaw.weebly.com/uploads/1/3/4/4/134446418/3516762.pdfIn PDF document text
  • https://mepopuwiv.weebly.com/uploads/1/3/4/4/134499337/wubotenij-xuzolixaxigul.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://s3.amazonaws.com/labitajaxatufib/lesson_8.4_practice_a_geometry_answer_key.pdfIn PDF document text
  • https://s3.amazonaws.com/xanebavifamopez/82903372731.pdfIn PDF document text
  • https://s3.amazonaws.com/fadedosi/99878416710.pdfIn PDF document text
  • https://s3.amazonaws.com/gezejoputiwinu/nabixumetesatixotabesa.pdfIn PDF document text
  • https://s3.amazonaws.com/sazixipame/piedras_preciosas_lista.pdfIn PDF document text
  • https://fudogajul.files.wordpress.com/2020/11/gatejofa.pdfIn PDF document text
  • https://s3.amazonaws.com/votuweroxigezog/jowixadis.pdfIn PDF document text
  • https://pupirod.files.wordpress.com/2020/11/nozemapopumetuve.pdfIn PDF document text
  • https://s3.amazonaws.com/voropa/bbs_fir_wheels.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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