Malicious PDF — malware analysis report

Heuristics 7

• 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.
• 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://xufipenisugiw.weebly.com/uploads/1/3/0/8/130873979/lowepoga_mukapuwakano.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.
• 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://jacksth.ru/strik?utm_term=medicaid+provider+number+lookup PDF link annotation

  • https://xufipenisugiw.weebly.com/uploads/1/3/0/8/130873979/lowepoga_mukapuwakano.pdfIn PDF document text
  • https://fujolununepa.weebly.com/uploads/1/3/4/6/134683680/kujuw.pdfIn PDF document text
  • http://kuliwegi.sportsontheweb.net/industrial_organizational_psychology_test_bank.pdfIn PDF document text
  • http://teplotronic.ru/how_do_i_delete_my_samsung_cloud_accountkeo4a.pdfIn PDF document text
  • https://remoruputudedux.weebly.com/uploads/1/3/4/0/134017090/ad7b1f0637d5311.pdfIn PDF document text
  • http://ruluzuzadol.mypressonline.com/active_and_passive_causative_exercises.pdfIn PDF document text
  • https://jubipolofolexi.weebly.com/uploads/1/3/2/3/132302872/fumopefunujad.pdfIn PDF document text
  • http://nibewubixela.getenjoyment.net/what_is_quantum_numbers_chemistry.pdfIn PDF document text
  • http://daddytestit.xyz/software_para_gps_garmin_gpsmap_60csx9omku.pdfIn PDF document text
  • http://benivosefemiza.medianewsonline.com/agradecimientos_de_tesis_a_mi_familia.pdfIn PDF document text
  • http://wozupabalaviv.medianewsonline.com/difference_between_alternator_and_generator.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://507f79ed-2408-4027-b124-45ed49bded7d.filesusr.com/ugd/2de61b_3b149f3b136b4e82b69aafd052cfcc9f.pdf?index=trueIn PDF document text
  • https://s3.amazonaws.com/gebukil/under_the_dome_season_3_episode_8_sinhala_sub.pdfIn PDF document text
  • https://35057dd6-1d18-4acd-96c9-af3b7fddc7cd.filesusr.com/ugd/978dd5_ad458006dad645c6b94e1d2e278b421b.pdf?index=trueIn PDF document text
  • https://s3.amazonaws.com/wamatasamegu/fugonenijukosigipo.pdfIn PDF document text
  • https://ab60d57a-1f92-408f-9079-0b325776b613.filesusr.com/ugd/724fb5_39e448525bc143d9a1554dce46f5142c.pdf?index=trueIn PDF document text
  • https://08c3cc13-1ce0-4add-927e-a3aed263473e.filesusr.com/ugd/ccf397_e799173c53614fdf9f58e6ac3daf6066.pdf?index=trueIn PDF document text
  • https://s3.amazonaws.com/dabatisew/zimuwefasavarutivodogiva.pdfIn PDF document text
  • https://s3.amazonaws.com/zusevamasor/zibevageribowizixalubole.pdfIn PDF document text
  • https://0f926834-650c-4d5a-b53c-ad60ae412ccc.filesusr.com/ugd/6a44d8_3e5369495d1c439188422bcd0942a8ca.pdf?index=trueIn 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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