Malicious PDF — malware analysis report

Static analysis result for SHA-256 a51a877829a6b318…

MALICIOUS

PDF

363.8 KB Created: 2015-08-25 22:07:16 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: cdcfdc2e42024b70f4b2e62ed88a80a1 SHA-1: 6307171631700acb87c0cf144780a8d2938d65fb SHA-256: a51a877829a6b318f62c34d36dd1cd279940d43d9f8dbaed8fe9f4dac07c0326
90 Risk Score

Malware Insights

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

The PDF contains an embedded link to a known malicious redirector, botcraftman.ru. This indicates the document is designed to lure users to a malicious site. The ML classifier also flagged this PDF with high confidence. No scripts were extracted from this sample, but the presence of the malicious URL is sufficient evidence for this assessment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9979

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%82%D0%B5%D0%BA%D1%81%D1%82+%D0%BF%D0%B5%D1%81%D0%BD%D0%B8+%D0%B0+%D1%8F+%D0%B1%D0%B0%D1%80%D0%B1%D0%B8+%D0%B3%D0%B5%D1%80%D0%BB+%D1%8F+%D0%BB%D1%8E%D0%B1%D0%BB%D1%8E+%D0%B4%D0%B8%D1%80%D0%BE%D0%BB&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/7//4740/4740567_podpolnaya__imperiya__skachat_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4740/4740552_skachat__minecraft__multi_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4740/4740562_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000561dd.bin
bda2857d2376034407b147a2bc66f663b96e6383e26f529f32293e0d6e5a2aa4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x561DD 9000 bytes
font_01_sfnt_off00057bea.bin
3fc3847bbcec2e6de9988be0505fc48a5ca8450a035671039f66089f61201fc5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x57BEA 16968 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.