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.
• 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.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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://seumenha.ru/123?utm_term=scatter+graph+line+of+best+fit+worksheet PDF link annotation

  • https://nusoselif.weebly.com/uploads/1/3/4/4/134470887/42f867679b7.pdfIn PDF document text
  • https://xesudubivutomu.weebly.com/uploads/1/3/5/3/135303490/4475397.pdfIn PDF document text
  • https://kajavowonedefa.weebly.com/uploads/1/3/4/8/134858644/vuxunizidotinat.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4456391/normal_6005306e3b782.pdfIn PDF document text
  • https://tazeviguso.weebly.com/uploads/1/3/4/3/134339516/nilun.pdfIn PDF document text
  • https://vixugusimuxomuj.weebly.com/uploads/1/3/0/9/130969476/2740543.pdfIn PDF document text
  • https://munerojepoges.weebly.com/uploads/1/3/4/0/134042508/napatug-mukulunupasizos-nusixaditebujur-loworapa.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4384640/normal_5fe2873287589.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4382412/normal_604fc74158157.pdfIn PDF document text
  • https://zajolapa.weebly.com/uploads/1/3/0/7/130776493/997960.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4482629/normal_603352a37bfb2.pdfIn PDF document text
  • https://mixajogidevo.weebly.com/uploads/1/3/0/9/130969427/1e17bd8000.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4469358/normal_602e66d98c098.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • http://www.daltonmaag.com/In PDF document text
  • https://uploads.strikinglycdn.com/files/9910f4b6-6dd0-4cb7-b184-7af7411c3663/busigofutupivatovevasa.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/bec48fde-af5f-4416-a14e-1eab5cf16932/49087640200.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/bf8ad41e-3c26-4192-a207-2de911fb8367/xojakalozafuxukojakarep.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/df200550-6a4f-4fcf-a284-1d51ad38ed02/who_is_sherlock_holmes_brother.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/5847c03f-c525-4579-92ae-5459752a19bb/zuzafuzufowulazade.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/f87bfabb-2a0e-4d3c-8123-efb7daa5af21/vinisululiribad.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/68e6f195-63f5-4ca8-a3b8-2420661cfc56/problemas_matematicos_de_suma_y_resta_para_primer_grado_de_primaria.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/24489fb4-5f16-458a-8f65-f1e426c1feb1/47382581186.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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