Malicious PDF — malware analysis report

Static analysis result for SHA-256 be2287a230d4d9bf…

MALICIOUS

PDF

30.9 KB Created: 2020-10-27 18:52:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a92a8bcc7ff33bffdf939580188781a1 SHA-1: d30ca4c56ef06e4171c0ba160d42c0c603199d67 SHA-256: be2287a230d4d9bf9c8460daaa317f487a5382f96ca022313c1c94031aeeca29
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a heuristic firing for linking to known malicious redirector infrastructure, specifically pointing to 'https://ggtraff.ru/123?keyword=blue+dragons+rs3+location'. It also exhibits characteristics of a PDF link farm, containing numerous links to other PDFs, many of which are hosted on benign platforms but likely serve to obscure the malicious redirector. The document body, though heavily obfuscated, contains the malicious URL, suggesting an attempt to trick users into clicking it.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9951

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.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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/123?keyword=blue+dragons+rs3+location
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