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.
• 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://traffine.ru/aws?keyword=phantom+snapchat+apk In PDF document text

  • https://firedisivimi.weebly.com/uploads/1/3/0/9/130969818/8671433.pdfIn PDF document text
  • https://nakefofomiruni.weebly.com/uploads/1/3/4/4/134483242/gutibumalakojuvakeso.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/7b8f3809-2683-44f0-9a51-883125174468/89845514783.pdfIn PDF document text
  • https://s3.amazonaws.com/tadovu/you_re_approaching_me_template.pdfIn PDF document text
  • https://s3.amazonaws.com/guwutivupudutu/77664702852.pdfIn PDF document text
  • https://s3.amazonaws.com/vuliwisuwig/88825910509.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/c79ad4de-cf8c-45fc-9772-36463e7cbe12/product_owner_checklist.pdfIn PDF document text
  • https://nosixaxuk.files.wordpress.com/2020/11/robert_merle_la_mort_est_mon_mtier.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/be284216-f17e-4221-b5a7-405b2862dd96/23947951456.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/aa26e6c4-46c7-450d-b9b2-261e02e279ff/danedesoguwogumo.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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