Malicious PDF — malware analysis report

Static analysis result for SHA-256 5e0849fd146a68c3…

MALICIOUS

PDF

374.9 KB Created: 2015-08-27 09:47:36 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: ec75391ae399f499207520b20541578f SHA-1: ed4795f0d56ad883a6c60fbb3a279ec6e362ece8 SHA-256: 5e0849fd146a68c3665c787256bc2088a450c5ad1d9a5ce533d449275f776502
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link to a known malicious redirector, indicating an attempt to lure the user to a harmful site. The ML classifier also flagged this PDF with high confidence. While no scripts were extracted, the presence of a malicious URL strongly suggests a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9974

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%BB%D1%83%D0%BD%D1%82%D0%B8%D0%BA+%D1%82%D1%80%D0%B5%D0%BD%D0%B8%D1%80%D1%83%D0%B5%D0%BC+%D0%BF%D0%B0%D0%BC%D1%8F%D1%82%D1%8C+%D0%B8+%D0%B2%D0%BD%D0%B8%D0%BC%D0%B0%D0%BD%D0%B8%D0%B5+%D1%82%D0%BE%D1%80%D1%80%D0%B5%D0%BD%D1%82&charset=utf-8
    • http://img1.liveinternet.ru/images/attach/c/7//4771/4771857_skachat__dubstep__drum_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4771/4771834_razgovornuye__temuy__po_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4771/4771792_skachat__igo__8_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005932d.bin
57796f513738cd2907452eb7fd3e928964a16d1924ba63099ed763f643c73ba8
pdf-font-stream PDF embedded font (sfnt) at offset 0x5932D 8212 bytes
font_01_sfnt_off0005aab3.bin
2c175699323857390d044d9f01007c697f26964dfbd326ef34dd75d3a8dc6cf1
pdf-font-stream PDF embedded font (sfnt) at offset 0x5AAB3 16136 bytes