Malicious PDF — malware analysis report

Static analysis result for SHA-256 c9af54c1efaffaba…

MALICIOUS

PDF

16.0 KB Created: 2020-10-29 20:09:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c8f4789f70b6d61265f3814a72f95e10 SHA-1: 986ff0dc8c492a25b46f680622677174fff369b6 SHA-256: c9af54c1efaffaba59462784f60f56687b3648adbfe58a34a7cf247323a69f7e
112 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 User Execution: Malicious Link

The PDF is identified as an image-only lure designed to trick users into clicking a link. The embedded URL, https://cctraff.ru/123?keyword=destiny+1+exotic+armor, is flagged as a known malicious redirector. This indicates the document's primary purpose is to lead the user to a malicious site, likely for further exploitation or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9955

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-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
    PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 16 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • 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://cctraff.ru/123?keyword=destiny+1+exotic+armor
    • https://cdn-cms.f-static.net/uploads/4386073/normal_5f925d5dd1177.pdf
    • https://cdn-cms.f-static.net/uploads/4383802/normal_5f8fa69638882.pdf
    • https://cdn-cms.f-static.net/uploads/4366397/normal_5f8db09984d50.pdf
    • https://cdn-cms.f-static.net/uploads/4422620/normal_5f991ec3988c2.pdf
    • https://cdn-cms.f-static.net/uploads/4404105/normal_5f95034bcb2d5.pdf
    • https://cdn-cms.f-static.net/uploads/4391015/normal_5f91ea09cd119.pdf
    • https://cdn-cms.f-static.net/uploads/4382197/normal_5f91580618e89.pdf
    • https://s3.amazonaws.com/jamokaroxoj/tesosodutivilifeket.pdf
    • https://cdn.shopify.com/s/files/1/0502/8197/1908/files/kilkreath_temple_key_location.pdf
    • https://cdn.shopify.com/s/files/1/0439/0758/0072/files/72772327872.pdf

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