Malicious PDF — malware analysis report

Static analysis result for SHA-256 7e8d5d0c0b0ab236…

MALICIOUS

PDF

352.9 KB Created: 2015-08-25 16:50:54 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: f2d267fe4104424514ea47c9075dcec3 SHA-1: 855b0656802a84914df91fd404067c06b53b8ff9 SHA-256: 7e8d5d0c0b0ab23692a216a2ae0fb68405fdf630c578c92a95a71a3c25d625d4
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a heuristic firing indicating a malicious redirector link to 'http://botcraftman.ru/'. This suggests the document is designed to lure users to a potentially harmful website. While no scripts were explicitly extracted, the presence of a malicious URL and the ML classification strongly indicate malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9951

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%9E%D0%B4%D0%B8%D0%BD+%D1%80%D0%B0%D0%B7+%D0%B8+%D0%BD%D0%B0+%D0%B2%D1%81%D1%8E+%D0%B6%D0%B8%D0%B7%D0%BD%D1%8C+%D0%B8%D0%BB%D1%8C%D1%8F+%D1%88%D1%83%D0%B3%D0%B0%D0%B5%D0%B2+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+txt&charset=utf-8
    • http://img1.liveinternet.ru/images/attach/c/7//4733/4733921_telefonnuyy__spravochnik__g_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4733/4733153_skachat__gta__5_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4732/4732502_cirk__astrahan_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00053d66.bin
61461d64040733b0a985c671c7cee2a5f53749ee278e598f5000369f97de825e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x53D66 9700 bytes
font_01_sfnt_off000559f4.bin
0b7bd95b2512c2a625aa4614e7e18de480ecee584a2d9cc030165445aff0c8d2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x559F4 13112 bytes

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