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
• PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
  PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
• 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.
• Callback phishing phone lure medium SE_CALLBACK_LURE
  Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
• 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://baarspo.ru/strik?utm_term=verizon+lg+phones+old PDF link annotation

  • http://my-favshopg.online/cisco_sg300-28_manual3asvu.pdfIn PDF document text
  • https://cdn.sqhk.co/dofulokune/dZjeik0/avira_internet_security_software_free.pdfIn PDF document text
  • https://cdn.sqhk.co/baxoladipezu/giKgii1/dragon_city_game_download_for_pc.pdfIn PDF document text
  • https://cdn.sqhk.co/fosulavale/hbza6ch/wife_bugsy_siegel_daughters.pdfIn PDF document text
  • http://gixitetopes.scienceontheweb.net/81937522217.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4478703/normal_603bae9174bc8.pdfIn PDF document text
  • http://picsonair.com/vivaviby6bc9.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4498893/normal_6064e536d2b31.pdfIn PDF document text
  • https://cdn.sqhk.co/sifalavuxozo/jeTjejg/red_dead_redemption_2_cheats_xbox_one_invincibility.pdfIn PDF document text
  • http://italia-doc.space/901865092635qnmw.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4490523/normal_603e96a15cc4e.pdfIn PDF document text
  • http://privateguardingserviceagainstdanger.site/721263708319bd3g.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4444114/normal_5fca9f65c20a4.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4382784/normal_605248a6c7fc9.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://6c403777-3bdb-430d-a4ca-23d5788374d5.filesusr.com/ugd/e0034b_1757b2e5536b4c5c9429133ed1176893.pdf?index=trueIn PDF document text
  • https://f608bf75-187c-4b28-9621-af925c05c2b6.filesusr.com/ugd/05e3ad_dacee4c9d3544859b6f5a4e2d28b0c2a.pdf?index=trueIn PDF document text
  • http://wenares.myartsonline.com/newspaper_article_layout.pdfIn PDF document text
  • https://77bc4ea4-de20-41c0-a463-a5315db628d9.filesusr.com/ugd/2c69e3_1ab9498d1f3b4ee5ad36b2611efcebb6.pdf?index=trueIn PDF document text
  • https://17851959-1482-4b49-8222-7b7b0c628459.filesusr.com/ugd/3cb679_eaf876aaf9e94999a29983477b0d1243.pdf?index=trueIn PDF document text
  • https://0f939073-77d1-4307-aaa8-42539c8515e3.filesusr.com/ugd/85c9df_62aa5d2263144aa6ae3195404a6b2e59.pdf?index=trueIn PDF document text
  • https://4095172d-bd2f-4181-91d7-dd424e653400.filesusr.com/ugd/df73ab_19ac4e5ab595416e8366ea67e40a27d0.pdf?index=trueIn PDF document text
  • https://8569cc17-8b2a-4187-ace0-95b0550b99f0.filesusr.com/ugd/d6eede_6c5c59516aee4845a318d0c9e746c39a.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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