Malicious PDF — malware analysis report

Static analysis result for SHA-256 9eb7ed4ee0232f9f…

MALICIOUS

PDF

352.8 KB Created: 2015-08-25 22:07:10 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: a3bf5587b11b6e608ae463cf53df8e1b SHA-1: 8c04815d7325d94c37e07df22bda0ce6d69def5c SHA-256: 9eb7ed4ee0232f9f1b8fb9fcdc8df3e0388348b92338bbbb5a8135764e31f04c
90 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, indicating a phishing or malware distribution attempt. The ML classifier also flagged this PDF with high confidence. No scripts were extracted, but the presence of a malicious URL is a strong indicator of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9977

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%A7%D0%B5%D1%80%D1%82%D0%B5%D0%B6%D0%B8+%D0%BA%D1%80%D0%B5%D1%81%D1%82%D0%B0+%D0%BD%D0%B0+%D0%BC%D0%BE%D0%B3%D0%B8%D0%BB%D1%83&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/7//4740/4740549_win__7__32_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4740/4740577_skachat__moduy__dlya_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4740/4740564_navigacionnuye__programmuy__dlya_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00053c5d.bin
28897b3b5b3b74c0be09dc0882a64ff1879beefc3c527370290196d191e9838a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x53C5D 8128 bytes
font_01_sfnt_off00055419.bin
37547b6c6187b6479fe2b5c246ac6cb976db82805ba05ae7ab09b28ad155854b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x55419 15556 bytes

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