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.
• Security software disable instruction high SE_SECURITY_BYPASS
  Document instructs the user to disable antivirus or security software — unusual for ordinary documents and high-risk in an unsolicited file
• 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://cctraff.ru/aws?keyword=download+idm+full+crack+tanpa+registrasi+kuyhaa In PDF document text

  • https://nobinetezo.weebly.com/uploads/1/3/0/9/130969761/7442338.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00005f8c.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00005f8c.bin)
  • https://s3.amazonaws.com/gupuso/zodolatiterewujoburixadew.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/8b29e021-0aa5-4353-a0b6-cf6440e7705a/jose_emilio_pacheco_el_principio_del_placer.pdfIn PDF document text
  • https://s3.amazonaws.com/tetazino/samsung_ac_catalogue_2018.pdfIn PDF document text
  • https://s3.amazonaws.com/fejenijovekozu/23026657905.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0501/1111/9527/files/causes_of_chronic_diarrhea.pdfIn PDF document text
  • https://s3.amazonaws.com/gupuso/gowugibefidowaziro.pdfIn PDF document text
  • https://s3.amazonaws.com/kizugokofo/funny_happy_birthday_brother_cards.pdfIn PDF document text
  • https://s3.amazonaws.com/pazifetanegapu/27898028783.pdfIn PDF document text
  • https://s3.amazonaws.com/davubewu/imperative_sentence_worksheets_for_grade_3.pdfIn PDF document text
  • https://s3.amazonaws.com/pisik/46281245355.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 extracted file (font_00_sfnt_off00005f8c.bin)

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