Malicious PDF — malware analysis report

Static analysis result for SHA-256 8b4fd21a728cd96e…

MALICIOUS

PDF

12.6 KB Created: 2020-10-15 19:24:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2bd937b37d846017b42de25cc48d64e9 SHA-1: 0d9259899c16d442683ee0a9d993ce8695f249d3 SHA-256: 8b4fd21a728cd96ecfef28070c5b871dbce554d56f56a9a7d7ddf62f5e31c3f7
112 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF file is identified as malicious due to its structure, which resembles a screenshot lure designed to trick users into clicking a link. The embedded URL, https://ttraff.club/pify?keyword=download+garena+mobile+arena+apk, is flagged as a known malicious redirector, indicating a probable attempt to deliver a second-stage payload. The ML classifier strongly supports the malicious verdict.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9897

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 12 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://ttraff.club/pify?keyword=download+garena+mobile+arena+apk

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