Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa457941727a66af…

MALICIOUS

PDF

8.7 KB Created: 2020-11-03 16:15:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4b00eafeb2fc07da7ecda3f9660e9b05 SHA-1: c79419bb42d51583d63ba0c8912e356516019f9f SHA-256: aa457941727a66af028580f08fbd8ebb9610e1c1010e04279be055950912cdcc
112 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file is identified as malicious due to its structure, which resembles a screenshot lure designed to prompt user interaction. It contains a link to a known malicious redirector, https://gettraff.ru/strik?keyword=thuoc+lao+meaning, which is likely used to deliver a secondary payload or lead the user to a phishing site. The ML classifier also strongly indicated maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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 8 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://gettraff.ru/strik?keyword=thuoc+lao+meaning

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