Malicious PDF — malware analysis report

Heuristics 8

• ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
• 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.
• Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
  Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
• 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.
• 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://jottigo.ru/123?utm_term=new+yorker+magazine+subscription+discount PDF link annotation

  • https://cdn.sqhk.co/wukibezoso/jjgiyjh/12031825052.pdfIn PDF document text
  • https://wokulenazaxur.weebly.com/uploads/1/3/4/7/134744474/4a1f455.pdfIn PDF document text
  • https://cdn.sqhk.co/virurewev/aojbtjj/cooking_fever_hack_gems_and_coins.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4386361/normal_60060ffbb2d5f.pdfIn PDF document text
  • https://cdn.sqhk.co/samigimas/hegdWFZ/45522010118.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4496602/normal_5fffa19162aad.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4393628/normal_600afe72b0995.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4421473/normal_600353c8a58f0.pdfIn PDF document text
  • https://kifesajisibak.weebly.com/uploads/1/3/4/8/134884742/kupupone.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4387031/normal_6015c6dd38dc3.pdfIn PDF document text
  • http://all-casino.xyz/chata_fatranka_varin_foto9jkb2.pdfIn PDF document text
  • https://cdn.sqhk.co/posojuvapono/jihEehc/76819452647.pdfIn PDF document text
  • https://lameperitilexi.weebly.com/uploads/1/3/1/1/131164355/sivumadiwi_rawewuto_bujanumibomi.pdfIn PDF document text
  • https://wukonoru.weebly.com/uploads/1/3/4/4/134441013/rurobuzudomana.pdfIn PDF document text
  • http://sushibara.net/wilton_decorating_tips_posterj7o94.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn 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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