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.
• Malformed active-content stream length medium PDF_MALFORMED_EXPLOIT_STREAM_LENGTH
  A PDF stream that carries active/exploit-looking content has a declared /Length that does not match the recovered stream body. Malformed stream boundaries and length mismatches are common parser-evasion/supporting evidence around Reader exploit streams.
• 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://nipisod.ru/award?keyword=brother+gx+6750+typewriter+correction+tape PDF link annotation

  • https://tezifotunojoke.weebly.com/uploads/1/3/0/7/130776805/7485809.pdfIn PDF document text
  • https://sigajijatikad.weebly.com/uploads/1/3/1/3/131379485/8541509.pdfIn PDF document text
  • https://lusovajilabijix.weebly.com/uploads/1/3/5/3/135351537/birupefa_duxitodor_sikakobufodaz_rafebik.pdfIn PDF document text
  • https://vedixoba.weebly.com/uploads/1/3/4/8/134864822/vufirolilof.pdfIn PDF document text
  • https://velineninebag.weebly.com/uploads/1/3/4/6/134608195/837170.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4449990/normal_5fdf944c21f7d.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4450440/normal_6036c45ff2225.pdfIn PDF document text
  • https://xaweworamek.weebly.com/uploads/1/3/4/6/134610398/togizopovivelu.pdfIn PDF document text
  • http://fijixedi.22web.org/firefox_60._0._1.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4386363/normal_6010879f641f4.pdfIn PDF document text
  • https://pijolonaponezu.weebly.com/uploads/1/3/4/8/134879261/lelegu_luzimepam.pdfIn PDF document text
  • https://kobawepa.weebly.com/uploads/1/3/1/0/131070010/fonatufaxajunuj-mowizamitupek-xawutif-fibetuxesasef.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4457281/normal_6008134c3661f.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4448731/normal_601852e407017.pdfIn PDF document text
  • https://xizimojagetotom.weebly.com/uploads/1/3/3/9/133997363/2fc0f4ae4e9019.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://2aa89031-56ac-4de1-b828-aabe99840ec8.filesusr.com/ugd/cf14a4_0e245d283062495699de185fdb376229.pdf?index=trueIn PDF document text
  • https://uploads.strikinglycdn.com/files/9af2cc7e-37bf-47ea-8852-a8589a3da25a/75011076787.pdfIn PDF document text
  • https://8d94caac-80d5-4f6d-a73a-04ed47837dc1.filesusr.com/ugd/585b1d_67844cb826e24f12a18e3e6b989b2ce7.pdf?index=trueIn PDF document text
  • http://kizarup.epizy.com/the_fox_and_the_crow_moral_of_the_story.pdfIn PDF document text
  • http://zetijub.epizy.com/waxeketo.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/eb8b8cab-0f5a-418c-bd4a-4a1fef188af8/niruvam.pdfIn PDF document text
  • https://0a37a3d5-a0bf-4e77-8ff5-6127fd08aefa.filesusr.com/ugd/6046c9_c9dbcd94f0534c05879e911ff3a1190d.pdf?index=trueIn PDF document text
  • https://042e50b4-45d0-4577-915a-c14d43ab21ad.filesusr.com/ugd/18f527_4a754c895c8e423fba9df1702d348b23.pdf?index=trueIn PDF document text
  • https://uploads.strikinglycdn.com/files/0cefa989-047a-42ee-be2c-b202ab659259/7073832269.pdfIn PDF document text
  • https://91e55214-10ad-44cf-a10a-60a9392df58b.filesusr.com/ugd/e1c37d_12f2f96913c1402ab568e734c3f3fe95.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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