Malicious PDF — malware analysis report

Heuristics 7

• 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.
• Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
  PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
• 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
• ClickFix social engineering attack high SE_CLICKFIX
  Document instructs the user to press Win+R or paste a command into a terminal — consistent with ClickFix attacks that bypass macro restrictions by tricking users into running malicious commands directly
• 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://cctraff.ru/123?keyword=uninstall+office+2020+manually+windows+7 In PDF document text

  • https://cdn-cms.f-static.net/uploads/4366965/normal_5f87528cb0819.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4370080/normal_5f880e2ef389d.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368740/normal_5f87ea8f13861.pdfIn PDF document text
  • https://site-1042446.mozfiles.com/files/1042446/60715426761.pdfIn PDF document text
  • https://durapafived.weebly.com/uploads/1/3/1/4/131438767/wugipuvedixaxej.pdfIn PDF document text
  • https://wepugimi.weebly.com/uploads/1/3/1/0/131070973/sanufiruwula-nuxagadedanureg.pdfIn PDF document text
  • https://kekerisasil.weebly.com/uploads/1/3/0/7/130775365/jirizixogobub_lusinipapox_jarijefanik_lufosomo.pdfIn PDF document text
  • https://lodirunesu.weebly.com/uploads/1/3/0/8/130874391/2404480b5f30.pdfIn PDF document text
  • https://vozutadisifik.weebly.com/uploads/1/3/1/4/131483249/662261.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://uploads.strikinglycdn.com/files/8e8b768d-e400-4326-b9d7-7d9c3ef88070/derurajalu.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/944c6870-dcad-45f9-b62b-4cd15d08df09/wixazukipoxe.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/a70df4d2-7627-4af8-afb9-5f60d1fecf86/95766595910.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0496/1091/6003/files/aluratek_bluetooth_transmitter_pairing_instructions.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0429/5960/1830/files/where_do_i_belong_song.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0492/2864/4508/files/40890575562.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0481/3157/1879/files/xobixekumawituvubawowi.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0498/3717/9042/files/chromag_wideangle_vs_stylus.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0268/8486/6217/files/tudiwasikos.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0427/9762/9596/files/dogbane_leaf_beetle_control.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0431/8475/0747/files/sonic_after_the_sequel_soundtrack.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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