Malicious PDF — malware analysis report

Heuristics 6

• 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.
• Brand-impersonation credential phishing lure critical SE_BRAND_CREDENTIAL_PHISH
  Document impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: action link to abused redirector https://wumunelopilum.weebly.com/uploads/1/3/4/3/134395902/390885.pdf.
• 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://cctraff.ru/strik?keyword=mikandi+unlimited+gold+apk In PDF document text

  • https://cdn-cms.f-static.net/uploads/4415080/normal_5f977ff13eba2.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4414696/normal_5f9548ce4b172.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4374520/normal_5f975f95daeb3.pdfIn PDF document text
  • https://wumunelopilum.weebly.com/uploads/1/3/4/3/134395902/390885.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369153/normal_5f8e522d0302e.pdfIn PDF document text
  • https://nipibodofabujid.weebly.com/uploads/1/3/4/2/134265940/92cc9169d4868.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369179/normal_5f87ad1d14981.pdfIn PDF document text
  • https://vodipewelo.weebly.com/uploads/1/3/1/6/131637384/tewazol.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4375885/normal_5f8984734e040.pdfIn PDF document text
  • https://delidenaluno.weebly.com/uploads/1/3/4/4/134438050/sitajagago-zenizibiwetam-xusenimu.pdfIn PDF document text
  • https://xojerajap.weebly.com/uploads/1/3/1/3/131384359/1392291.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4388620/normal_5f965896a0bf7.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369645/normal_5f9933c99d17e.pdfIn PDF document text
  • https://firerokuk.weebly.com/uploads/1/3/1/1/131164187/002d930dca.pdfIn PDF document text
  • https://wetuxabo.weebly.com/uploads/1/3/0/8/130873937/ridukelumosir.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off000056a7.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off000056a7.bin)
  • https://s3.amazonaws.com/farezelof/72785647457.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0498/7981/0203/files/morningstar_direct_user_guide.pdfIn PDF document text
  • https://s3.amazonaws.com/sugaguxagu/fupezemuguxizudawurin.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0498/4150/4418/files/eagleton_literary_theory.pdfIn PDF document text
  • https://s3.amazonaws.com/jezaxojipevu/zadexerimimipovame.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 extracted file (font_00_sfnt_off000056a7.bin)
  • http://dejavu.sourceforge.netIn extracted file (font_02_sfnt_off00008af3.bin)
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_02_sfnt_off00008af3.bin)

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