Malicious PDF — malware analysis report

Heuristics 5

• PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
  PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
• 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.
• 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://cctraff.ru/aws?keyword=farmacos+antihipertensivos+y+mecanismo+de+accion+pdf In PDF document text

  • https://cdn-cms.f-static.net/uploads/4370284/normal_5f89695abff49.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369911/normal_5f89beafec8eb.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4387419/normal_5f8fdaa21f966.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367950/normal_5f87e9463f86a.pdfIn PDF document text
  • https://lajojixuvoporor.weebly.com/uploads/1/3/0/7/130738555/dasimon.pdfIn PDF document text
  • https://genigudepa.weebly.com/uploads/1/3/1/0/131070712/7304884.pdfIn PDF document text
  • https://mesipaku.weebly.com/uploads/1/3/1/3/131383407/relopupag.pdfIn PDF document text
  • https://jawasolasazilem.weebly.com/uploads/1/3/1/3/131379174/wewebunovemerifabo.pdfIn PDF document text
  • https://zukamukenipebo.weebly.com/uploads/1/3/1/3/131380388/mazetudutawagum-dolod.pdfIn PDF document text
  • https://mekuxiwefajup.weebly.com/uploads/1/3/0/7/130739023/228c26ae113.pdfIn PDF document text
  • https://boguvetasitob.weebly.com/uploads/1/3/1/3/131380850/koviwa.pdfIn PDF document text
  • http://fontawesome.iohttp://fontawesome.io/license/In extracted file (font_00_sfnt_off000098b4.bin)
  • http://www.ascendercorp.com/In extracted file (font_01_sfnt_off0000a128.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_01_sfnt_off0000a128.bin)
  • https://uploads.strikinglycdn.com/files/e12ee4b4-1892-4f3f-8160-ce631e2956c5/bosuw.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/e82e984c-770a-4195-8657-7e5523e45d35/lazugiwozomowuba.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/3dee669a-47c9-454d-abc1-ad7b290c2b73/merofaxux.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/c16901de-f1e3-4b60-bede-db64ab5b67a0/17595498622.pdfIn PDF document text
  • https://s3.amazonaws.com/susopuzupure/wunojakukefivi.pdfIn PDF document text
  • https://s3.amazonaws.com/zetare/pumikix.pdfIn PDF document text
  • https://s3.amazonaws.com/xanebavifamopez/nevizokonawuti.pdfIn PDF document text
  • https://s3.amazonaws.com/zirojopemup/kezedezazuge.pdfIn PDF document text
  • https://s3.amazonaws.com/mijedusovineti/administrao_da_produo_e_operaes_daniel_augusto_moreira_download.pdfIn PDF document text
  • https://s3.amazonaws.com/henghuili-files2/attendance_allowance_application_form.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 extracted file (font_01_sfnt_off0000a128.bin)
  • http://dejavu.sourceforge.netIn extracted file (font_03_sfnt_off0000dd48.bin)
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_03_sfnt_off0000dd48.bin)

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