Malicious PDF — malware analysis report

Static analysis result for SHA-256 06cce18d2f125a81…

MALICIOUS

PDF

360.5 KB Created: 2015-08-24 00:09:40 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 4487e07014effd0c7c5ad770a2e54ce9 SHA-1: 9eb9da1f48ea3c0f8756a09e29c441f71ecb292e SHA-256: 06cce18d2f125a81bbc3d974b5e9e409933bd1f218ea4fca4367b552420f8cfd
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link to a known malicious redirector, botcraftman.ru, which is a strong indicator of malicious intent. The ML classifier also flagged this PDF with high confidence. While no scripts were extracted, the presence of a malicious URL suggests the document is designed to lure the user to a compromised site.

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%9E%D1%82%D0%B7%D1%8B%D0%B2+%D0%BF%D0%BE+%D0%BF%D1%80%D0%B0%D0%BA%D1%82%D0%B8%D0%BA%D0%B5+%D1%8D%D0%BA%D0%BE%D0%BD%D0%BE%D0%BC%D0%B8%D1%81%D1%82%D0%B0+%D0%BF%D1%80%D0%B8%D0%BC%D0%B5%D1%80&charset=utf-8
    • http://img1.liveinternet.ru/images/attach/c/6//4693/4693756_masha__i__medved_.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4693/4693703_fresh__paint__skachat_.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4693/4693231_temuy__dlya__samsung_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00055d65.bin
eaeff35eea5c4f1070d85daaaf66902f21b04a2b096d23a66342eab02537e3d4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x55D65 8280 bytes
font_01_sfnt_off0005754f.bin
f477753222d3093d94e613032dbff4c7e26d6cb7bda8ca9c438d7f109b7dd8d9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5754F 14756 bytes

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