Malicious PDF — malware analysis report

Static analysis result for SHA-256 b019243fc2c5a55e…

MALICIOUS

PDF

369.6 KB Created: 2015-08-29 11:30:38 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 0fe08b1af20e3da4585b3c49dbd7137f SHA-1: d6af2e20f2d88dfcc52dd2caad5d9f4933857dd4 SHA-256: b019243fc2c5a55ec9264389dce5d808319b410bc54c301d3c773c3a052c007f
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link to a known malicious redirector, http://botcraftman.ru/, which is a strong indicator of malicious intent. The ML classifier also flagged this PDF with high confidence. While no scripts were extracted, the presence of a malicious URL suggests the document is designed to lure the user to a compromised site, likely for phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9975

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=%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%B2%D0%B7%D0%BB%D0%BE%D0%BC%D0%B0%D0%BD%D0%BD%D1%8B%D0%B9+angry+birds+star+wars+2&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/7//4830/4830090_naruto__shippuden__ultimate_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4830/4830319_pourochnuye__planuy__po_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00057b48.bin
1467dbd84a570554dff2d3ca35a45ba35546bb7b943aec4cf5dfd108bfc5e6f7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x57B48 9112 bytes
font_01_sfnt_off00059569.bin
040d7a310289aa941f77e25e2bd034dbf6fa86a95de12b6a97ca1348134ab8f0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x59569 16628 bytes

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