Malicious PDF — malware analysis report

Static analysis result for SHA-256 b003f68d8794f7d1…

MALICIOUS

PDF

359.8 KB Created: 2015-08-24 02:05:53 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: ab15117248e336960c292873ccdfb95d SHA-1: e5bec14f9afba032395d10246f108cad61b828ca SHA-256: b003f68d8794f7d1d01d9d4819d55ed2e205c04434f33ce2b862413d0a630ec7
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file was flagged by a machine learning classifier and contains a critical heuristic indicating a malicious redirector link. The embedded URL, http://botcraftman.ru/, is identified as a known malicious redirector. This suggests the file is intended to lure users to a malicious site, likely for further exploitation or phishing.

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=%D1%81%D1%82%D1%80%D0%B5%D1%81%D1%81%D0%BE%D0%B2%D0%BE%D0%B5+%D1%81%D0%BE%D0%B1%D0%B5%D1%81%D0%B5%D0%B4%D0%BE%D0%B2%D0%B0%D0%BD%D0%B8%D0%B5+%D0%BF%D1%80%D0%B8%D0%BC%D0%B5%D1%80%D1%8B&charset=utf-8
    • http://img1.liveinternet.ru/images/attach/c/6//4693/4693868_skachat__arakin__2_.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4695/4695617_perevozchik__moskva__na_.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4696/4696238_dell__factory__image_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00055bab.bin
80060aac0f57f0782a7eb711eefb781caf726639d7e07fb04e4b5ff1d131a0bc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x55BAB 7960 bytes
font_01_sfnt_off00057252.bin
7974054ee05c076ced2974316facc2fb9c9ca6742c0347dbf23885942c112b8f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x57252 15064 bytes

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