Malicious PDF — malware analysis report

Static analysis result for SHA-256 d27be8985b5d0dbd…

MALICIOUS

PDF

353.9 KB Created: 2015-08-24 00:27:27 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: a02c94131e0fd6fb50faaf53a9ca6ecd SHA-1: e0fd0ccd9a4d81c1f3753c30a43aa7778d74f533 SHA-256: d27be8985b5d0dbd578c09328d92ea19d3a68903c32a1cef79dde7ce0af12236
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. The redirector URL is http://botcraftman.ru/. This indicates the document is likely part of a phishing or malware distribution campaign. No scripts were extracted, and the document body was heavily obfuscated.

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%A0%D0%B0%D1%81%D0%BF%D0%B8%D1%81%D0%B0%D0%BD%D0%B8%D0%B5+%D0%B0%D0%B2%D1%82%D0%BE%D0%B1%D1%83%D1%81%D0%BE%D0%B2+%D1%82%D0%BE%D0%BB%D0%BE%D1%87%D0%B8%D0%BD-%D0%BA%D1%80%D1%83%D0%B3%D0%BB%D0%BE%D0%B5&charset=utf-8
    • http://img1.liveinternet.ru/images/attach/c/6//4693/4693657_programma__diagnostika__reno_.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4693/4693878_anatomiya__plavaniya_.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4693/4693925_8__pervuyh__razvodov_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000545fb.bin
504fbe1f11cdfcaaa90967c4aa775452cbe6160998c83da7b0b80e94646ac334
pdf-font-stream PDF embedded font (sfnt) at offset 0x545FB 7884 bytes
font_01_sfnt_off00055cec.bin
59216488f7b18b267563f3989e8f4942b90b8a2065cb92dcf653bcb2c07ea8f6
pdf-font-stream PDF embedded font (sfnt) at offset 0x55CEC 13500 bytes