Malicious PDF — malware analysis report

Heuristics 10

• 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.
• Security software disable instruction high SE_SECURITY_BYPASS
  Document instructs the user to disable antivirus or security software — unusual for ordinary documents and high-risk in an unsolicited file
• 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.
• Callback phishing phone lure medium SE_CALLBACK_LURE
  Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
• 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
• 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://nomylo.ru/pbw?utm_term=mi+account+unlock+tool+rar+file+password PDF link annotation

  • https://karopudalel.weebly.com/uploads/1/3/4/8/134881347/49eeb83ea990b.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4483854/normal_5fda89bc36a94.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4501810/normal_5fc72593bd8f4.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4384164/normal_5fcf311ce82b9.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4367950/normal_5ffab9da18b52.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4497353/normal_605db9f537a3c.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4427076/normal_60b7b6223a66e.pdfIn PDF document text
  • https://vawosikajoj.weebly.com/uploads/1/3/1/4/131438279/3532063501d75f.pdfIn PDF document text
  • https://miwovobapenatoj.weebly.com/uploads/1/3/4/2/134266375/vobobunixolove.pdfIn PDF document text
  • https://retizobokeli.weebly.com/uploads/1/3/1/0/131070240/fesofi.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4470387/normal_60301669beda2.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4446636/normal_605a68e829d69.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4494451/normal_5fe2ce88b5c70.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369632/normal_6067302b5edca.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4503390/normal_603dc49f4c66e.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • http://jifosez.pbworks.com/f/baxemipikivenapijuje.pdfIn PDF document text
  • http://dewubuk.pbworks.com/w/file/fetch/144939720/17384865540.pdfIn PDF document text
  • http://zuguwar.pbworks.com/f/standard_catalog_of_smith__wesson_4th_edition.pdfIn PDF document text
  • http://gajufabeke.pbworks.com/w/file/fetch/144423063/how_much_do_designers_charge_for_a_logo.pdfIn PDF document text
  • http://namikikis.pbworks.com/f/what_are_the_attributes_of_a_good_health_educator.pdfIn PDF document text
  • http://zidedabi.pbworks.com/w/file/fetch/144869283/clases_basicas_de_ingles.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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