Malicious PDF — malware analysis report

Static analysis result for SHA-256 574e17950699e7b1…

MALICIOUS

PDF

32.6 KB Created: 2020-10-30 05:42:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c6905e82c3b3206526d2e0eff03bfab5 SHA-1: 186caea2ddf982f57868ccd34e22c4ff1b62e171 SHA-256: 574e17950699e7b18ffe64a7d260aa4d7365dea4e5f3543664f31738ebd3b846
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a heuristic firing indicating it links to known malicious redirector infrastructure. The embedded URL, 'https://ggtraff.ru/aws?keyword=capitulo+7a-7+realidades+1+answers', is the primary indicator of malicious intent. The document body, though heavily obfuscated, appears to contain the same URL, reinforcing its role in the attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9977

Heuristics 2

  • 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.
  • 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=capitulo+7a-7+realidades+1+answers
    • https://cdn-cms.f-static.net/uploads/4376098/normal_5f8cea703921c.pdf
    • https://cdn-cms.f-static.net/uploads/4417023/normal_5f99cc86753ab.pdf
    • https://cdn-cms.f-static.net/uploads/4388067/normal_5f925d875b2c3.pdf
    • https://cdn-cms.f-static.net/uploads/4390659/normal_5f9349ad63ae8.pdf
    • https://uploads.strikinglycdn.com/files/ea31d2ab-2d06-4e48-bc1f-b4a42a67183f/gumegijobujuramu.pdf
    • https://cdn.shopify.com/s/files/1/0431/9074/7295/files/prescribing_guidelines_in_psychiatry_12th_edition.pdf
    • https://cdn.shopify.com/s/files/1/0434/0668/8412/files/enfermedades_de_la_matriz_extracelular.pdf
    • https://uploads.strikinglycdn.com/files/63d50208-4d78-44aa-9728-789be52768e1/controle_social_et_dviance_dissertation.pdf
    • https://uploads.strikinglycdn.com/files/ce749ac9-cdaa-4723-9821-b3cd5ffe1024/62740538.pdf
    • https://s3.amazonaws.com/subud/totizivuw.pdf
    • https://cdn.shopify.com/s/files/1/0266/8281/8733/files/study_skills_worksheets_4th_grade.pdf

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