Malicious PDF — malware analysis report

Heuristics 7

• 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.
• Clipboard command execution lure high SE_CLIPBOARD_COMMAND_LURE
  Document tells the user to copy or paste clipboard content into Run, PowerShell, cmd, or another shell-like execution context
• 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://traffset.ru/123?keyword=my+apk+apk PDF link annotation

  • https://kisupumusu.weebly.com/uploads/1/3/4/5/134513531/48532f0c4d3.pdfIn PDF document text
  • https://lakujasoramaw.weebly.com/uploads/1/3/4/4/134400634/01c577.pdfIn PDF document text
  • https://reredutubonuki.weebly.com/uploads/1/3/0/7/130775370/xudivubimodotol_tesefa_silas.pdfIn PDF document text
  • https://vodemilofokuse.weebly.com/uploads/1/3/4/2/134235674/barusoj.pdfIn PDF document text
  • https://judunelikirolo.weebly.com/uploads/1/3/4/3/134375477/992f96472.pdfIn PDF document text
  • https://rivibesosad.weebly.com/uploads/1/3/4/5/134529272/viraja.pdfIn PDF document text
  • https://nuvefiwepopowu.weebly.com/uploads/1/3/4/5/134502743/jubinevuseban.pdfIn PDF document text
  • https://mesipaku.weebly.com/uploads/1/3/1/3/131383407/vojapuxuwux-tipamudufaw-miwojip.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://s3.amazonaws.com/subud/jurnal_ampas_kelapa.pdfIn PDF document text
  • https://s3.amazonaws.com/muvazi/big_ideas_math_algebra_2_answers_slader.pdfIn PDF document text
  • https://ziziwugo.files.wordpress.com/2020/11/herod_family_tree.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/d79a92f9-5df9-4153-bbc3-21c1299f1193/fudumojadonun.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/18e1f131-6025-46bf-b1f8-a1a91f1804c3/silberberg_chemistry_5th_edition.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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