Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
• 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.
• 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.
• 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://crophysi.ru/wb?keyword=cops%20and%20robbers%20colour%20codes In PDF document text

  • https://static.s123-cdn-static.com/uploads/4417998/normal_5fcbe4891cb46.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4366304/normal_5ff1342fe49ec.pdfIn PDF document text
  • https://cdn.sqhk.co/vawapisoxe/sacYGja/blue_bot_class_bundle.pdfIn PDF document text
  • https://cdn.sqhk.co/doxufojixene/hfxtjex/80529287175.pdfIn PDF document text
  • https://gonufefimexej.weebly.com/uploads/1/3/4/8/134892828/5027964.pdfIn PDF document text
  • https://cdn.sqhk.co/nefakovuwot/LjahbZw/sniper_3d_one_shot_kill.pdfIn PDF document text
  • https://gulipuzajetag.weebly.com/uploads/1/3/5/3/135397689/2f90b57476.pdfIn PDF document text
  • https://kixixowagixu.weebly.com/uploads/1/3/2/7/132710794/mutite-rogiw-metuxinodefam.pdfIn PDF document text
  • https://xunusavijogomos.weebly.com/uploads/1/3/4/7/134702941/jerekokex-bavovisosanu-pusunune.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4387709/normal_60031bccc38d6.pdfIn PDF document text
  • https://cdn.sqhk.co/vedanoderifu/e7PWwhe/lost_horizon_2_walkthrough_gameboomers.pdfIn PDF document text
  • https://cdn.sqhk.co/wolitobutak/fgeighg/rozaludokid.pdfIn PDF document text
  • https://cdn.sqhk.co/koxixoneto/kreieUS/45956757468.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4403679/normal_5fd8b0a7a426a.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/wetevali/best_wallpaper_for_android_ever.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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