Malicious PDF — malware analysis report

Static analysis result for SHA-256 fbb9de983306dc67…

MALICIOUS

PDF

345.5 KB Created: 2015-08-28 11:28:39 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: efaa82889e907aa27a77b05b22564338 SHA-1: 8e3b930ba53dcd8725b8c0fbfba014829f9ba08f SHA-256: fbb9de983306dc67617eaa4816abfa58f1e7c9edc14383607fd7cf50d42dfe4a
90 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and contains a link to a known malicious redirector at http://botcraftman.ru/. This suggests the document is designed to lure users to a malicious website. No scripts were extracted, and the document body was heavily obfuscated, preventing further analysis of its specific intent beyond redirection.

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=panasonic+kx-tga110ru&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/7//4798/4798059_sbornik__zadach__po_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4791/4791081_skachat__office__2003_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4796/4796859_drayver__kodak__easyshare_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00051849.bin
27585a96b4b37bc93dd590bd7c08df5b4ceb810e0bd6164ec9365a53ad30efb6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x51849 9968 bytes
font_01_sfnt_off00053480.bin
64e8f9cd9de6eb0ac534241362a45f4107bf827cc52b188b952304dc2775f887		 pdf-font-stream PDF embedded font (sfnt) at offset 0x53480 16916 bytes

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