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.
• Malformed active-content stream length medium PDF_MALFORMED_EXPLOIT_STREAM_LENGTH
  A PDF stream that carries active/exploit-looking content has a declared /Length that does not match the recovered stream body. Malformed stream boundaries and length mismatches are common parser-evasion/supporting evidence around Reader exploit streams.
• 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.
• Embedded JS stream low PDF_JS
  PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
• 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://midufefew.ru/wb?keyword=personajes%20importantes%20de%20la%20independencia%20de%20estados%20unidos PDF link annotation

  • http://kakorixow.mygamesonline.org/73060909665.pdfIn PDF document text
  • https://jokiwuruxuwam.weebly.com/uploads/1/3/1/4/131437523/zubisawaregufev-pofefuwepifido-mukal.pdfIn PDF document text
  • https://refanoripusegu.weebly.com/uploads/1/3/4/3/134306014/karivisep.pdfIn PDF document text
  • http://pazujiz.mygamesonline.org/what_does_sexually_frustrated_mean_for_a_guy.pdfIn PDF document text
  • https://tatisosef.weebly.com/uploads/1/3/5/3/135333589/624bcb7fbf6f2.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4374371/normal_6018e838e292d.pdfIn PDF document text
  • http://dududuw.mypressonline.com/preo_sports_hd_dv_1080p_h.264.pdfIn PDF document text
  • http://bukapim.mywebcommunity.org/tajulukemujiziwegibap.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4444102/normal_5fd635dbb2a6d.pdfIn PDF document text
  • https://fugogifozu.weebly.com/uploads/1/3/4/8/134888696/govizojoniwobil.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4408992/normal_60290d74c1cdc.pdfIn PDF document text
  • https://depesusexufajev.weebly.com/uploads/1/3/5/3/135351117/debepegenomitag-jonuwipupokawu-fikideraf-kifegogodu.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • http://livirava.atwebpages.com/78974939572.pdfIn PDF document text
  • https://s3.amazonaws.com/nedijowewoded/jemajegobuxora.pdfIn PDF document text
  • http://sipopos.epizy.com/31356728639.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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