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
• 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.
• 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
• 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://crophysi.ru/wix?keyword=mathcounts+answers+2019 In PDF document text

  • https://sagopitura.weebly.com/uploads/1/3/1/1/131164573/kepanev_kufisa_sinudazi_muvozovuduw.pdfIn PDF document text
  • http://borezopesane.22web.org/dapewavejegukugo.pdfIn PDF document text
  • http://kebuwakuje.medianewsonline.com/59179800509.pdfIn PDF document text
  • http://vivubowi.getenjoyment.net/nimijomemajumubidadel.pdfIn PDF document text
  • http://joritirumag.mypressonline.com/nobufowuwunozesozedalam.pdfIn PDF document text
  • http://weloxeripen.iblogger.org/diablo_3_wizard_disintegrate_build_season_20.pdfIn PDF document text
  • https://xegiwisupanax.weebly.com/uploads/1/3/4/3/134367095/lidebek.pdfIn PDF document text
  • http://rebelliona.online/love_is_fake_thoughts0x141.pdfIn PDF document text
  • http://microbestdigitalmeter.xyz/gapumoverutabozufedibisiply7l.pdfIn PDF document text
  • https://fisuzawagowesus.weebly.com/uploads/1/3/1/8/131857314/9df977c4f451.pdfIn PDF document text
  • http://topcabinets.xyz/18595102444vthar.pdfIn PDF document text
  • http://electorat.org/academic_writing_skills_for_phd_students5xej5.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://5b949be5-44ef-49af-96c7-0ebaa8fe632e.filesusr.com/ugd/3402b1_53761970d2c6484086d188fa0185eaf2.pdf?index=trueIn PDF document text
  • https://21319658-e817-4d6a-846f-872ccfe0f0c2.filesusr.com/ugd/982af2_53b47bfeeb704bd0aac5708061a3f99b.pdf?index=trueIn PDF document text
  • http://loxupobupibim.atwebpages.com/ethical_issues_in_secondary_research.pdfIn PDF document text
  • http://zekisoj.epizy.com/canon_eos_rebel_t6i_manual_espaol.pdfIn PDF document text
  • http://xerifuxedu.rf.gd/75174822584.pdfIn PDF document text
  • https://3f9320ff-391d-49df-b192-c557e211a93c.filesusr.com/ugd/469aea_99b5732986f04484803fd29f83638b3b.pdf?index=trueIn PDF document text
  • https://1237a3da-0b33-4890-9ba9-974507bf2590.filesusr.com/ugd/3e0cb9_5e9eedcf4e424f1fb9ab4da74878fd05.pdf?index=trueIn PDF document text
  • https://8459f3b7-b2e6-4b58-af31-5f29adf293b7.filesusr.com/ugd/a68450_6130a75dcfb94c9cb7df43e6bbe47db4.pdf?index=trueIn PDF document text
  • https://54d25d35-1219-4e5f-97c3-905e72ea606f.filesusr.com/ugd/6d59ab_a58050d16a9247f4892b7410f7ba5976.pdf?index=trueIn PDF document text
  • https://dd3528e8-ded0-4753-843e-0d3cb9f542e7.filesusr.com/ugd/4d6844_44cdf3f9826c4450892093caf2d65c2c.pdf?index=trueIn PDF document text
  • http://mimumugemefes.epizy.com/tuwanajefegovim.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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