Malicious PDF — malware analysis report

Static analysis result for SHA-256 b4ae3b72c5e64362…

MALICIOUS

PDF

15.5 KB Created: 2020-07-13 01:14:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2d8d4f7128e4ec751c58c3fd938c0154 SHA-1: 50f0947871e7ecace93a54e974955c40a717bc4c SHA-256: b4ae3b72c5e64362c6abe9de3fcd61f26e11641345b3219e00f56b0f435173fb
110 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file is identified as malicious due to its structure, which resembles an image-only lure designed to trick users into clicking a link. The embedded URL, https://ttraff.cc/wb?keyword=transformacje%20zda%C5%84%20angielski%20b2%20pdf, is flagged as a known malicious redirector. This indicates the document's primary purpose is to lead the user to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8531

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 2 image(s), only 0 text block(s), carries a click-outward action, and is only 15 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.cc/wb?keyword=transformacje%20zda%C5%84%20angielski%20b2%20pdf