Malicious PDF — malware analysis report

Static analysis result for SHA-256 aec54d2d60dc8eb8…

MALICIOUS

PDF

356.0 KB Created: 2015-08-23 20:52:42 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: b8ccc86386ada342e00938cdd0054a00 SHA-1: 9fc7241f055896391fc0d104ce0aeba9efe26c73 SHA-256: aec54d2d60dc8eb8ce8f027f7712f3c82354fc29226c751ca32e6fe187da0d9b
60 Risk Score

Malware Insights

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

The PDF file was flagged for containing a link to a known malicious redirector. This indicates a likely attempt to lure the user to a malicious website for phishing or malware delivery. No scripts were extracted, and the document body was heavily obfuscated, preventing further analysis of the specific lure. The primary IOC is the redirector URL.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.3304

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+%D0%BF%D1%80%D0%BE%D0%B3%D1%80%D0%B0%D0%BC%D0%BC%D1%83+%D0%BA%D0%BB%D0%BE%D1%83%D0%BD+%D1%84%D0%B8%D1%88+%D0%B4%D0%BB%D1%8F+%D1%81%D0%BA%D0%B0%D0%B9%D0%BF%D0%B0&charset=utf-8

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00054788.bin
cd0842354814108eebe221278322ee8d737a33eeedb82abaf44d483c7d5408af		 pdf-font-stream PDF embedded font (sfnt) at offset 0x54788 10108 bytes
font_01_sfnt_off000562cf.bin
df00e258029fabe7d812cc242ede1bec9cb1d880d7857d6893b6601e041c53d2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x562CF 14504 bytes

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