Malicious PDF — malware analysis report

Static analysis result for SHA-256 0ca8a7dd8aab14f3…

MALICIOUS

PDF

358.3 KB Created: 2015-08-22 08:48:46 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 6ee017f07e0d5c19f23edc828719b57f SHA-1: 356c465dbc42e7fdc277a122c7d235e9d65d6b03 SHA-256: 0ca8a7dd8aab14f32dd4d5758255308af14085040efe079179817531f515cd61
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains an embedded link to a known malicious redirector, indicating an attempt to lure the user to a harmful website. While no scripts were directly extracted, the presence of a malicious URL strongly suggests a phishing or malware distribution attempt. The document's metadata indicates it was generated by wkhtmltopdf, which can sometimes be abused to create malicious PDFs.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4258

Heuristics 2

  • 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.
  • 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 http://botcraftman.ru/?lip&keyword=%D0%A1%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%BB%D1%8E%D0%B1%D0%B8%D0%BC%D1%8B%D0%B5+%D0%B1%D1%8B%D0%B2%D1%88%D0%B8%D0%BC%D0%B8+%D0%BD%D0%B5+%D0%B1%D1%8B%D0%B2%D0%B0%D1%8E%D1%82&charset=utf-8

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00055840.bin
768f2527c413fd12ba73c89b40d4a654491edc34e3b89dc5ba5e03b6b8ca6749		 pdf-font-stream PDF embedded font (sfnt) at offset 0x55840 7920 bytes
font_01_sfnt_off00056ec3.bin
3efae7c403bf2456f080d5fdae14e4b2a10a45e5630281c29202ec1af67aabe8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x56EC3 13612 bytes

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