Malicious PDF — malware analysis report

Heuristics 8

• 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.
• Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
  Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
• 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://vilenefex.ru/strik?utm_term=gta+5+3dm+update+v5 PDF link annotation

  • https://cdn-cms.f-static.net/uploads/4383792/normal_602f5e8f37649.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4445340/normal_604a646c4c1bd.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4407576/normal_602c05a07067b.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4464522/normal_600540887c886.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4446400/normal_6044dd9a410eb.pdfIn PDF document text
  • https://cdn.sqhk.co/banuluwopote/d5qIggY/promised_land_bellingen_weddings.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4443371/normal_5fff634c84246.pdfIn PDF document text
  • https://cdn.sqhk.co/jitolado/jfgcIqh/okta_login_page.pdfIn PDF document text
  • https://cdn.sqhk.co/zizenozi/jbGjl5H/xazulimimadovufogomogekaw.pdfIn PDF document text
  • https://cdn.sqhk.co/gogojelawov/cjaz8if/kulidofutukovigusubepu.pdfIn PDF document text
  • https://cdn.sqhk.co/sofizagumup/eheFbhf/18786696478.pdfIn PDF document text
  • https://cdn.sqhk.co/lopijikuvi/btkIGgi/cannot_access_samsung_cloud_gallery.pdfIn PDF document text
  • https://cdn.sqhk.co/borefigux/jigjbhg/jumping_a_car_in_spanish.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://s3.amazonaws.com/tenunud/living_style_guide.pdfIn PDF document text
  • https://907864b8-ab38-4b43-b195-7646ee37c451.filesusr.com/ugd/c4b402_d48d9b83c53a4575a1a329705352e336.pdf?index=trueIn PDF document text
  • https://be1d055c-b83b-422e-9e68-1bf13cef350c.filesusr.com/ugd/5b1e3c_733efdba93c549f1871d051ee69bf259.pdf?index=trueIn PDF document text
  • https://s3.amazonaws.com/zetubakuz/76765753949.pdfIn PDF document text
  • https://s3.amazonaws.com/rixevozajixezos/information_security_program_training_army_answers.pdfIn PDF document text
  • https://19e6fc83-c281-4d06-93fd-e8b16a02b90a.filesusr.com/ugd/ce5d00_44bca9b5e012450da8dd8675c59b640c.pdf?index=trueIn PDF document text
  • https://s3.amazonaws.com/zugutixe/binder_covers_templates.pdfIn PDF document text
  • https://12dd324c-696b-4d67-8c19-991f3eacec2c.filesusr.com/ugd/eeb7bd_1586b007c9f64c25a5ccee0921b922cc.pdf?index=trueIn PDF document text
  • https://89e5ed4a-33eb-42a6-b5f1-9fc07ea1e15b.filesusr.com/ugd/ff68bb_6b892717bb1d4329bb37b1c1376c4ca9.pdf?index=trueIn PDF document text
  • https://s3.amazonaws.com/legapatatezisa/14860367387.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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