Malicious PDF — malware analysis report

Static analysis result for SHA-256 18d18214fb52bb11…

MALICIOUS

PDF

354.8 KB Created: 2015-08-28 01:41:23 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: c0437ea4489306aa63a95ec54023e92c SHA-1: 5ddd95b8b232f45100eda14ac095f3585982db45 SHA-256: 18d18214fb52bb11b4e78d7b0d8fd152ee2489290dc6791d447222899a1b92c4
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a heuristic firing indicating it links to known malicious redirector infrastructure. The embedded URL, http://botcraftman.ru/..., is identified as a malicious redirector. While no scripts were explicitly extracted, the nature of the redirector suggests an attempt to lure the user to a malicious site, likely for further exploitation or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9897

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%B1%D1%8B%D0%BB%D0%B0%D1%81%D1%8C+%D0%BC%D0%B5%D1%87%D1%82%D0%B0+%D0%B1%D0%B5%D0%B3%D0%B5%D0%BC%D0%BE%D1%82%D0%B0+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C&charset=utf-8
    • http://img1.liveinternet.ru/images/attach/c/7//4787/4787868_igo__apk_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4788/4788988_skachat__vst__plaginuy_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4788/4788346_kniga__ucheta__dohodov_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005422e.bin
5360c3ea120b337464a08610b87ac9d7fb0f27917dbe33aa0418113d8de21bed		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5422E 8472 bytes
font_01_sfnt_off00055957.bin
9cf4199a56e91f44506335afc3bbaa0a207b11e01ab2ca2e7cb9193656f9ca68		 pdf-font-stream PDF embedded font (sfnt) at offset 0x55957 16704 bytes

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