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://gepidoduxaw.weebly.com/uploads/1/3/5/3/135324144/9ba205.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://zajinet.ru/wix?keyword=tax+refund+estimate+2020 PDF link annotation

  • https://cdn.sqhk.co/pijujuweg/dnOidjb/offline_games_free_download_for_windows_8.pdfIn PDF document text
  • https://gepidoduxaw.weebly.com/uploads/1/3/5/3/135324144/9ba205.pdfIn PDF document text
  • https://lixubirenolona.weebly.com/uploads/1/3/4/6/134669397/61a6a.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4379362/normal_60295971ae5fa.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4423145/normal_5fec3b78bf81b.pdfIn PDF document text
  • https://kiwiwutirove.weebly.com/uploads/1/3/4/7/134707888/zijerid_zadisajo_lifupo_zenodosakijo.pdfIn PDF document text
  • https://cdn.sqhk.co/wumerelup/Fgckjdw/womemop.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4384150/normal_5fd18f1350807.pdfIn PDF document text
  • http://zekuweteni.22web.org/54026245559.pdfIn PDF document text
  • https://cdn.sqhk.co/paxepilekot/Ajewjdm/pirates_of_the_caribbean_theme_song_piano.pdfIn PDF document text
  • https://dorakipep.weebly.com/uploads/1/3/4/7/134747047/lesalirapupefanolaz.pdfIn PDF document text
  • https://tuwopabawebude.weebly.com/uploads/1/3/1/3/131382790/vizuzuwiwazujixexigu.pdfIn PDF document text
  • https://turonobofudub.weebly.com/uploads/1/3/4/4/134463989/727708.pdfIn PDF document text
  • https://cdn.sqhk.co/pixafosabow/ygjsL4m/felicite_au_plus_haut_point_synonyme.pdfIn PDF document text
  • https://zobegutibeg.weebly.com/uploads/1/3/4/9/134902349/bupilaxeto-mivozibin-solib.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • http://ninonasoligu.rf.gd/annie_on_my_mind.pdfIn PDF document text
  • https://9cf93ecd-64ee-4ad6-afcc-f350577a7522.filesusr.com/ugd/c4dbd3_09c3b99d66164ddca227d42fc08a2892.pdf?index=trueIn PDF document text
  • https://0491f86b-060d-4f4a-be23-b0d01488777f.filesusr.com/ugd/faa7ef_800a4150e9994796a41301493ff29eaf.pdf?index=trueIn PDF document text
  • https://3d7304b5-8527-495f-b913-615d6f357a43.filesusr.com/ugd/ef7486_9c04b0ec2bad4f83b5f58799d9d7ab2f.pdf?index=trueIn PDF document text
  • http://jetetekeputesi.epizy.com/burglar_alarm_sound_effect_free.pdfIn PDF document text
  • https://ac402fee-74f4-49a6-b5a4-6a03c6a057de.filesusr.com/ugd/b0cd75_92897882e12b415098fae41ebf14a222.pdf?index=trueIn PDF document text
  • https://85d2c5a2-fc31-4f76-86b4-4ebe2abe2bf4.filesusr.com/ugd/a8cc01_b857c8cec2144c5f9fa386162bd03ad7.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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