Malicious PDF — malware analysis report

Static analysis result for SHA-256 43ac2a2270522037…

MALICIOUS

PDF

16.6 KB Created: 2020-11-08 11:33:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: f558ad2d52f6f1d70388a29350cc2ea0 SHA-1: 22635d7ca66a7d87c62a41a9d247aa39ce6a83f9 SHA-256: 43ac2a2270522037edcdbf9b925fe7b38529105f6cb418fdf9e41efb37e02926
132 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains heuristics indicating it is a malicious redirector, specifically designed to lure users with an image related to 'meeting google download'. The primary IOC is the redirector URL, which is known to lead to malicious infrastructure. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9958

Heuristics 3

  • 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.
  • 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://traffking.ru/aws?keyword=meeting+google+download In PDF document text
    • https://cdn-cms.f-static.net/uploads/4366316/normal_5f870d80ba632.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366653/normal_5f874db8dd5a0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382619/normal_5f90e1d1519a2.pdfIn PDF document text
    • https://girenofozajete.weebly.com/uploads/1/3/4/4/134476001/877102.pdfIn PDF document text
    • https://darurirajilubi.weebly.com/uploads/1/3/4/3/134318819/webile.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369779/normal_5f9dca93b9513.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393363/normal_5f96bab162e36.pdfIn PDF document text
    • https://s3.amazonaws.com/pezofut/juzotusasor.pdfIn PDF document text
    • https://s3.amazonaws.com/rovuweraja/malber_wd_800.pdfIn PDF document text
    • https://s3.amazonaws.com/tudawufed/oracle_fusion_applications_implementation_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/bezegoluzose/nutrition_file.pdfIn PDF document text
    • https://nekonenos.files.wordpress.com/2020/11/witchery_werewolf_quest_guide.pdfIn PDF document text

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