Malicious PDF — malware analysis report

Heuristics 8

• 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.
• Brand-impersonation credential phishing lure high SE_BRAND_CREDENTIAL_PHISH
  Document impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: call-to-action link host does not match the impersonated brand: https://ttraff.com/pify?keyword=accounting+questions+and+answers+pdf+free+download.
• Fake invoice / payment lure low SE_INVOICE_LURE
  Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
• 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
• 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=accounting+questions+and+answers+pdf+free+download In PDF document text

  • http://files.collaboratoryshows.com/uploads/1/3/2/7/132740553/9991933.pdfIn PDF document text
  • http://files.canterburynuts.com/uploads/1/3/0/8/130874213/zalepu_xumamasepo_jenapolij_nelawovude.pdfIn PDF document text
  • http://files.aceachieversourlearninghub.com/uploads/1/3/1/1/131164273/burufowu-wunexu-vababosatoj.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://cdn.shopify.com/s/files/1/0432/2574/3521/files/52853497606.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0430/5335/1066/files/64284856455.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/92283418618.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0430/9132/9173/files/berutokulirurafelovuba.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0428/8049/9879/files/rukuregewibunutox.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0438/9509/5464/files/official_certified_ethical_hacker.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0431/5276/9192/files/pogivifaxufiwalonon.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0431/6063/3493/files/75602316034.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0437/7817/9221/files/57283378431.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0437/8918/9272/files/juzewawojatuwapotix.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0433/5930/5880/files/jowedoniwagup.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0434/3159/2102/files/agatha_christie.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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