Malicious PDF — malware analysis report

Static analysis result for SHA-256 40e8300c652b0ff6…

MALICIOUS

PDF

84.6 KB Created: 2020-11-05 08:35:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 54365f08af3084d7e082c05ce9d96309 SHA-1: 65bfdd0bd04cbf9f65a914ebabb63bb773c524f7 SHA-256: 40e8300c652b0ff6b91f8ded7ecd6c158dcad57e437df9d3be5b2f46cc1abf46
192 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to redirector infrastructure, specifically pointing to 'ggtraff.ru'. This indicates a phishing or scam attempt, likely to trick users into downloading further malicious content or visiting a compromised site. The presence of numerous PDF links suggests a link farm or SEO poisoning tactic to improve search engine ranking for malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9764

Heuristics 4

  • 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.
  • 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://ggtraff.ru/aws?keyword=shadowrun+5+adept+powers In PDF document text
    • https://cdn-cms.f-static.net/uploads/4393759/normal_5f9249f40d6e2.pdfIn PDF document text
    • https://botubadixebom.weebly.com/uploads/1/3/1/4/131407995/32b82.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371808/normal_5f93fb0e1e951.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4401545/normal_5f933486c146e.pdfIn PDF document text
    • https://takaranedo.weebly.com/uploads/1/3/4/0/134017801/mezezenole.pdfIn PDF document text
    • https://banafazag.weebly.com/uploads/1/3/4/3/134325205/3720c5fb06.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373297/normal_5f8a90c423ab1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379476/normal_5fa17819cd3e2.pdfIn PDF document text
    • https://s3.amazonaws.com/vipinib/pediatric_cardiology_for_practitioners.pdfIn PDF document text
    • https://s3.amazonaws.com/xojafemori/subject_verb_agreement_rules_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0480/4703/0436/files/40174891535.pdfIn PDF document text
    • https://s3.amazonaws.com/kizugokofo/56840235144.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4916/2654/files/37007729859.pdfIn PDF document text
    • https://s3.amazonaws.com/zokokamu/buvatuminerarirurutanu.pdfIn PDF document text

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