Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• 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.
• Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
  Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
• 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://maypoin.ru/strik?utm_term=actividades+para+ni%25C3%25B1os+de+tercer+grado+de+primaria+espa%25C3%25B1ol+pdf PDF link annotation

  • https://cdn-cms.f-static.net/uploads/4387052/normal_6049709a6068a.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4473651/normal_60065fccd2f49.pdfIn PDF document text
  • https://gamubojuteno.weebly.com/uploads/1/3/5/2/135299935/mabed-nigelegas-kirolikel-mimili.pdfIn PDF document text
  • https://xefezabegeritaj.weebly.com/uploads/1/3/1/3/131379478/fuxujizoropup_xokege.pdfIn PDF document text
  • https://kesegupopu.weebly.com/uploads/1/3/4/1/134131766/kogudoriw.pdfIn PDF document text
  • https://milunuxuv.weebly.com/uploads/1/3/4/5/134529922/bixeki-femamif.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4476007/normal_6037d0ce0ac8d.pdfIn PDF document text
  • https://weziriditovi.weebly.com/uploads/1/3/4/1/134108838/gavotetibavafa.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4415525/normal_5ff7b4a0d9c2c.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://uploads.strikinglycdn.com/files/b0fd21c0-1c86-4168-aae7-0589c403c8a2/62796654543.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/e7cdd16b-3468-4af8-9af6-d294f89d044c/novizepuderofokogoguvupen.pdfIn PDF document text
  • https://s3.amazonaws.com/nuxomigo/pioneer_vsx-821-k_specs.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/d0bd555a-6265-418f-b95f-41604c0bce1b/the_book_thief_star_cast.pdfIn PDF document text
  • https://s3.amazonaws.com/dowesitobuga/how_to_turn_off_hydronic_boiler.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/1202aa92-b05f-4d9c-bfe7-1ae2d57b97a3/best_life_inspiring_books_to_read.pdfIn PDF document text
  • https://s3.amazonaws.com/ximupuv/kenmore_ultra_wash_dishwasher_installation_instructions.pdfIn PDF document text
  • https://s3.amazonaws.com/vunizi/fuwozuzazememe.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/c808492c-21b2-4e76-97b1-c27114a2321e/kudafinalaxumipojane.pdfIn PDF document text
  • https://s3.amazonaws.com/kovilowab/44863502844.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/25a0ae70-6129-4a84-a8a7-5c9d45f976d1/example_of_straw_man_fallacy.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/09040950-c5d4-464e-9208-abfadbd14419/xevokoburubufara.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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