Malicious PDF — malware analysis report

Static analysis result for SHA-256 9c8f2b366feca21a…

MALICIOUS

PDF

17.6 KB Created: 2020-11-05 22:42:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 3c2aa5dce73e747fc287260ae8c6b5c8 SHA-1: e5c9535f61e20d0e2d8d6648fe23c0b45c081aa3 SHA-256: 9c8f2b366feca21ab3c68bddecd1423f16c71941d9ffe5ba45a50d8b10c5451d
74 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure related to an investigation, which redirects the user to the URL https://trafftec.ru/strik?keyword=frogs+fleas+and+painted+cubes+investigation+2. This URL is flagged as an SEO redirector, suggesting a phishing or malware distribution attempt. The ML classifier also strongly indicated maliciousness. No scripts were extracted, but the embedded link is the primary indicator of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9983

Heuristics 3

  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://trafftec.ru/strik?keyword=frogs+fleas+and+painted+cubes+investigation+2 PDF link annotation
    • https://muxamaxipusitu.weebly.com/uploads/1/3/4/4/134470051/4559526.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366335/normal_5f875ebb5ede2.pdfIn PDF document text
    • https://rixokofumi.weebly.com/uploads/1/3/1/3/131380985/foninada.pdfIn PDF document text
    • https://buvonidodiwa.weebly.com/uploads/1/3/4/3/134332647/nuxugakojelum.pdfIn PDF document text
    • https://lifafogiter.weebly.com/uploads/1/3/4/3/134321186/pugoxeg_zixogas.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370285/normal_5f8948e5a9c64.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378836/normal_5fa2d7ec24b8f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4414339/normal_5f9539e729a5b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379038/normal_5f8e42c9a47b8.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a407309c-0559-438d-a6de-7284c7b2ca7e/hotmail_com_logon.pdfIn PDF document text
    • https://s3.amazonaws.com/memul/88677062984.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0592d748-634b-4310-92d9-e46c696645db/legakanujebexipotizero.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f4f6a190-20a0-437a-bca5-39db8f5f8dd2/mod_apk_clash_of_clans.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e5e312bb-2a92-46b2-a758-4a12e75c6497/migoda.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/38e94700-11c6-4d87-9bdf-c70d5b9b671a/97955098355.pdfIn PDF document text

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