Malicious PDF — malware analysis report

Static analysis result for SHA-256 d41a52c8c2b17650…

MALICIOUS

PDF

357.2 KB Created: 2015-08-27 09:44:36 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: b140a6b2ca60d9721418f296573f402d SHA-1: 6f10c786a808c801b4df1a915a2b80dad6e03948 SHA-256: d41a52c8c2b17650732eba81858a0d565468dbe7fdeb7c6410d012f68ad802ea
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a link to a known malicious redirector infrastructure, botcraftman.ru. The document body, though heavily obfuscated, contains text that appears to be a lure for downloading 'minecraft 162 exe'. This suggests the PDF is designed to trick users into downloading malware. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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%A1%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%BC%D0%B0%D0%B9%D0%BD%D0%BA%D1%80%D0%B0%D1%84%D1%82+162+exe+%D0%B1%D0%B5%D1%81%D0%BF%D0%BB%D0%B0%D1%82%D0%BD%D0%BE&charset=utf-8
    • http://img1.liveinternet.ru/images/attach/c/7//4771/4771879_windows__8__polnaya_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4771/4771810_karta__vilnyusa__na_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4771/4771954_perspektivnuyy__plan__rabotuy_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00054a5b.bin
2da3f9fc868bc6f3e7571485a16f7d987ced09d4358cd305bcc9fc1e5c11b0e6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x54A5B 8820 bytes
font_01_sfnt_off000563e3.bin
5cfb8079281bf7ea2de4e0a5a59a04371ceac531f51ce59bc2d777914cff99d5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x563E3 15940 bytes

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