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.
• LOLBin token sequence in document text high SE_LOLBIN_RUN_COMMAND
  Extracted document text contains a Windows script/execution tool name (PowerShell, mshta, cmd, rundll32, regsvr32, …) within 220 characters of a dangerous flag, command verb, or URL. This is a visible 'run this' instruction in HTML/PDF/RTF lure bodies, or — in macro-laden Office files — the macro's own string-pool entries appearing adjacent in extracted text.
• 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://dafemum.ru/strik?utm_term=how+to+reset+rip+curl+tide+watch PDF link annotation

  • https://cdn.sqhk.co/mivadunoxo/yAhijj0/74944124929.pdfIn PDF document text
  • https://cdn.sqhk.co/bevoroxur/jcgd1gg/82630656880.pdfIn macro / runtime command snippet
  • https://cdn.sqhk.co/mitejapeki/idBidjd/90668903503.pdfIn macro / runtime command snippet
  • https://cdn.sqhk.co/zukasedu/8jcXDlN/riwejoguno.pdfIn PDF document text
  • https://cdn.sqhk.co/baluwofuk/eigVuhb/bibadixon.pdfIn PDF document text
  • https://vasigigu.weebly.com/uploads/1/3/4/6/134607878/3736592.pdfIn PDF document text
  • https://cdn.sqhk.co/wezufunin/hSsheXm/hong_kong_minersville_order_online.pdfIn PDF document text
  • https://vedefagam.weebly.com/uploads/1/3/0/8/130814874/2016308.pdfIn PDF document text
  • https://serekarivevug.weebly.com/uploads/1/3/1/4/131407867/b7a61178acf73.pdfIn PDF document text
  • https://cdn.sqhk.co/zofizitene/jjcjcj0/need_for_speed_no_limits_download_obb.pdfIn PDF document text
  • https://xikodixugab.weebly.com/uploads/1/3/4/7/134707070/92329.pdfIn PDF document text
  • https://cdn.sqhk.co/rinovizifim/hcidthh/ixl_8th_grade_language_arts_answers.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://3f735f5a-cd1c-4288-bd93-adeff6e084d9.filesusr.com/ugd/bcc0e4_2555505a8e1e481fbeeb62d9df1c6726.pdf?index=trueIn PDF document text
  • https://s3.amazonaws.com/liluvad/51291039053.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/4362bb91-5d77-4d65-b259-715ab3f32b5b/32213770104.pdfIn PDF document text
  • https://s3.amazonaws.com/wovedukevikov/begoronijitidumefez.pdfIn PDF document text
  • https://78ff948a-0765-49f5-a22c-0fbe0eba7848.filesusr.com/ugd/888d0b_32e56c2ab61344d3af6539319f348e49.pdf?index=trueIn PDF document text
  • https://uploads.strikinglycdn.com/files/09965aa6-31aa-4b0b-8ffb-29e65d1394a4/soxowepanujekol.pdfIn PDF document text
  • https://1cf095b7-1d29-4152-b82c-7733cf7ba0c7.filesusr.com/ugd/c1de29_677eeba0fc9b4b0597e056a9273ee700.pdf?index=trueIn PDF document text
  • https://s3.amazonaws.com/medaliwifufugel/electrical_symbols_in_automotive.pdfIn PDF document text
  • https://s3.amazonaws.com/rovuweraja/26716136707.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/dcbea04c-79fc-4765-93f3-d91466948d27/13791933959.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/3fbe824e-aa02-40cf-a99f-4d7d1f698fbe/sony_receiver_str-dg520_manual.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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