Malicious PDF — malware analysis report

Heuristics 5

• 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 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.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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=chemistry+practical+book+pdf+class+12 In PDF document text

  • http://kazoxadov.skfinancieel.nl/uploads/1/3/1/4/131483266/bowabafaluf_gekegi_fuzijif_vojavoto.pdfIn PDF document text
  • https://site-1036743.mozfiles.com/files/1036743/54690528295.pdfIn PDF document text
  • https://site-1040574.mozfiles.com/files/1040574/54505818912.pdfIn PDF document text
  • https://site-1040002.mozfiles.com/files/1040002/mawitemigudetub.pdfIn PDF document text
  • https://site-1036630.mozfiles.com/files/1036630/46540850136.pdfIn PDF document text
  • https://site-1040509.mozfiles.com/files/1040509/nulufuzelivevagik.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off000069cb.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off000069cb.bin)
  • https://cdn.shopify.com/s/files/1/0467/9922/4983/files/business_statistics_for_contemporary_decision_making.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0434/8523/3304/files/assassins_creed_identity_mod_apk.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0433/3905/5253/files/44341312890.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0479/3152/3239/files/xabemakiroliki.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0431/2888/1313/files/tam_tam_instrument_wikipedia.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/f2b3eb0f-5218-49bd-abf6-a2409fe7b578/88093938689.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/a9532115-c52e-417c-bfd5-da35f6115357/buropevoxilewotarolowi.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/36964026-9932-4f10-a5b6-675010747233/juzipexibejab.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_off000069cb.bin)
  • http://dejavu.sourceforge.netIn extracted file (font_03_sfnt_off0000b6d7.bin)
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_03_sfnt_off0000b6d7.bin)

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