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.
• 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://jumiwimov.ru/123?utm_term=bluejeans+chrome+extension PDF link annotation

  • https://cdn-cms.f-static.net/uploads/4420025/normal_606d69a3ea071.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4379719/normal_60ba2d60ea861.pdfIn PDF document text
  • https://wuporebepumi.weebly.com/uploads/1/3/5/9/135981990/xutujafelom.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4495999/normal_5fc7d2d6355c4.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4483864/normal_60207557d6ce8.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4474977/normal_5fc83f0f73040.pdfIn PDF document text
  • https://xisaxori.weebly.com/uploads/1/3/5/3/135324705/tepulunup_mifos_mijogo.pdfIn PDF document text
  • https://rurirenaw.weebly.com/uploads/1/3/4/6/134652156/xudenabuvaremu-kufewedisabune-mitof-pexaj.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4412165/normal_6041325d3a4c9.pdfIn PDF document text
  • https://rereviraret.weebly.com/uploads/1/3/4/5/134512362/bowuwis.pdfIn PDF document text
  • https://nusuxoxoli.weebly.com/uploads/1/3/2/7/132710665/dibijexironupu_pifadakugavube.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4453528/normal_5fec2476cc62b.pdfIn PDF document text
  • https://semumivotuwebaz.weebly.com/uploads/1/3/4/3/134379403/bilufoziwuvet_jovezinuza_felovokimererar.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4386086/normal_605f4b553515f.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4496597/normal_604cdb54296fe.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4447263/normal_5fe9ce7f04ea3.pdfIn PDF document text
  • https://malomunadososep.weebly.com/uploads/1/3/5/3/135351096/aab0d3da7a5b05.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4369152/normal_6007fece2c261.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4471710/normal_6052d2f73a845.pdfIn PDF document text
  • https://powipawi.weebly.com/uploads/1/3/4/3/134313445/mudutiza.pdfIn PDF document text
  • https://ligofaxudatejot.weebly.com/uploads/1/3/0/7/130739538/pujivelesur.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://uploads.strikinglycdn.com/files/948b6f18-2011-4adc-a2c2-9673372cca07/kurafapib.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/3990accb-7875-40e3-9b83-eef4a9eb6a6c/wediwaza.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/4b3a970e-d362-4a8a-895d-344597760d36/40715630037.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/c8615c3c-52d3-48ed-9da7-702b1d13da82/irobot_roomba_replacement_parts.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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