Malicious PDF — malware analysis report

Heuristics 6

• 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.
• 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.
• 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://ttraff.com/pify?keyword=horizontal+and+vertical+stretch+and+compression+worksheet In PDF document text

  • http://lajed.simakova-yulia.com/uploads/1/3/0/9/130969893/zediwapuz-mavipixir.pdfIn PDF document text
  • http://files.theporterauthority.com/uploads/1/3/1/6/131606027/nubuduzari.pdfIn PDF document text
  • http://dumal.michellejensen8.com/uploads/1/3/0/7/130739783/f6a4e7b4.pdfIn PDF document text
  • http://files.powershellder.com/uploads/1/3/2/3/132303126/fufujekodasuroju.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://cdn.shopify.com/s/files/1/0433/1828/0357/files/51707121471.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0427/8992/9116/files/disney_piano_solo_sheet_music.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0438/5685/5190/files/language_basic_concepts_theories_and_pedagogy_english_in_use.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0434/7405/9430/files/civil_registration_system_project_documentation.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0433/3705/6414/files/24312872124.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0447/9080/8727/files/60702898962.pdfIn macro / runtime command snippet
  • https://cdn.shopify.com/s/files/1/0438/1828/7266/files/significado_del_uniforme_de_enfermeria_blanco.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0438/4597/6221/files/kabatodemexudajaxofa.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0437/0920/2597/files/litanenuvamajobobojil.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0438/8870/5688/files/javascript_combine_arrays.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0431/6682/6656/files/85630233975.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0437/4750/8385/files/xolozavatijabise.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0435/4431/4024/files/formal_conference_invitation_template.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0438/8470/7992/files/sijikawitareliwizarere.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0431/0165/1101/files/gedavajunotugelama.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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