Malicious PDF — malware analysis report

Heuristics 6

• 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.
• 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.
• 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://pelibifir.ru/strik?utm_term=lista+de+verbos+regulares+e+irregulares+en+ingles+y+espa%25C3%25B1ol+conjugados PDF link annotation

  • https://cdn.sqhk.co/wukatigubo/cRqVhjG/moviesflix_bollywood_2018.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4495395/normal_6048a67eea4ca.pdfIn PDF document text
  • https://cdn.sqhk.co/pasededi/6hfKMOs/knife_throwing_competition_target.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4472776/normal_5ff81f77debc4.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4409118/normal_5ff5082c621f7.pdfIn PDF document text
  • https://cdn.sqhk.co/murafabu/sohajhF/38300348368.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4383924/normal_604a0219635b1.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4445869/normal_5fcff67702369.pdfIn PDF document text
  • https://cdn.sqhk.co/letonolomo/1AeyggV/xepixadavumigegumawek.pdfIn PDF document text
  • https://cdn.sqhk.co/lisakopew/d83cUqg/starting_lineup_for_tomorrow_s_race_at_daytona.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/polojuliragam/mozegaw.pdfIn PDF document text
  • https://9e77dbea-16d6-438e-9859-4a68c5388828.filesusr.com/ugd/3225da_8e9030cf57cf4bc085fd76ee5721d62c.pdf?index=trueIn PDF document text
  • https://0d3c4653-ec4b-4b04-9c20-59e348ba858e.filesusr.com/ugd/62200f_405dd1222062437bb2951fff0ad0a0c8.pdf?index=trueIn PDF document text
  • https://uploads.strikinglycdn.com/files/840eebb6-b785-433a-96d6-ab2ef358e4b0/how_to_help_my_teenager_with_time_management.pdfIn PDF document text
  • https://3d7304b5-8527-495f-b913-615d6f357a43.filesusr.com/ugd/ef7486_dba254dff14f441cbe0d58f844fafed3.pdf?index=trueIn PDF document text
  • https://557345b1-98c6-442d-b460-9e357c178e5b.filesusr.com/ugd/dfb5f8_877799edf9d24c149cdf084f337229f2.pdf?index=trueIn PDF document text
  • https://9c33b4df-6f14-41ad-9e94-a3a23f7ed20d.filesusr.com/ugd/2a975f_6312c5f2a4d04c939fa6281a6ec3d52a.pdf?index=trueIn PDF document text
  • https://1261df91-4e32-40b2-8b8a-4050d3c54cbb.filesusr.com/ugd/df69c1_b8acc88f3897491ea5f4838a12bab521.pdf?index=trueIn PDF document text
  • https://aa4de0c4-a7fb-47f6-97fe-5721705e71c1.filesusr.com/ugd/824332_2f53c5d304c34fb38f08097e6499020f.pdf?index=trueIn PDF document text
  • https://uploads.strikinglycdn.com/files/2dceaf4b-c492-4daa-b84a-a4558d00d93f/how_to_see_antilog_in_log_table.pdfIn PDF document text
  • https://s3.amazonaws.com/fidefofudi/kidupulafiwu.pdfIn PDF document text
  • https://c84ffda1-e72a-45fa-8ce8-a771970cf326.filesusr.com/ugd/9fd656_0878cf78fd3f4da5a69730940076ec4c.pdf?index=trueIn PDF document text
  • https://s3.amazonaws.com/babetafaperaxov/21918420514.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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