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.ru/pify?keyword=boulevard+hotel+bangkok%2528+formerly+amari%2529 In PDF document text

  • http://zamuzevup.bcox1.com/uploads/1/3/1/8/131871592/mafatobemutam_nalovu_petodaputebeni_rawugatuw.pdfIn PDF document text
  • http://files.bct1379.com/uploads/1/3/2/7/132710753/jikarazuduxit-lizoruvali.pdfIn PDF document text
  • http://files.bountifulpies.com/uploads/1/3/0/8/130874627/loxodedame.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • http://www.opentle.orgIn PDF document text
  • http://www.daltonmaag.com/In PDF document text
  • https://cdn.shopify.com/s/files/1/0434/5207/2086/files/56613605264.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0435/8940/2779/files/lodefizikitotix.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0427/6341/9815/files/15844229066.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0429/0917/1879/files/beimaan_piya_tumi_gaan.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0430/1327/5811/files/curl_post_example.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0439/2468/4968/files/70280714266.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0430/4420/8789/files/zakorutuxunasipov.pdfIn macro / runtime command snippet
  • https://cdn.shopify.com/s/files/1/0433/3161/6923/files/gujibetaxiwi.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0440/8734/5304/files/cheat_droid_pro_apk_free_root.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0435/8055/5419/files/79229899107.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
  • https://cdn.shopify.com/s/files/1/0439In macro / runtime command snippet
  • http://scripts.sil.org/OFLIn PDF document text
  • http://www.gnu.org/licenses/gpl.htmlIn PDF document text

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