Malicious PDF — malware analysis report

Static analysis result for SHA-256 f12fa62b604820fa…

MALICIOUS

PDF

352.5 KB Created: 2015-08-28 11:58:56 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 9e6567c46fd77af6e5dc31ac42b73fdb SHA-1: 1ccad258a4fe62f00cebb40a80ace8857b9e6bdd SHA-256: f12fa62b604820fafbc43a78890ebee8329e24eaf081570bae2bb26cdd7c0cf2
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a link to a known malicious redirector. The ML classifier also flagged this PDF with high confidence. The embedded link is likely intended to lead the user to a malicious site for further exploitation or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9947

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+%D1%81%D0%B5%D1%80%D0%B8%D0%B0%D0%BB+%D0%B2%D0%B8%D0%BA%D0%B8%D0%BD%D0%B3%D0%B8+3+%D1%81%D0%B5%D0%B7%D0%BE%D0%BD+%D1%87%D0%B5%D1%80%D0%B5%D0%B7+%D1%82%D0%BE%D1%80%D1%80%D0%B5%D0%BD%D1%82+%D0%B2+%D1%85%D0%BE%D1%80%D0%BE%D1%88%D0%B5%D0%BC+%D0%BA%D0%B0%D1%87%D0%B5%D1%81%D1%82%D0%B2%D0%B5&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/7//4802/4802897_skachat__adobe__premiere_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4802/4802871_skachat__shahmatuy__kasparov_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4802/4802549_skachat__shriftuy__dlya_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000535d6.bin
114f82fe1bd67f28b110bd514fd5135a86c307c8d2c6c0e83c2f8b3557ebc0f1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x535D6 8076 bytes
font_01_sfnt_off00054d49.bin
c0fc9530b74be48306e8b12ede60801b0d14f3f3dda8cc139e2f5aa6183ad69f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x54D49 17428 bytes

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