Malicious PDF — malware analysis report

Static analysis result for SHA-256 24669c1918947add…

MALICIOUS

PDF

344.6 KB Created: 2015-08-26 23:00:53 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: c453028a173d029d38dfb27649ddfee2 SHA-1: 2c8a2c7b374ff4ee8429aec389b6d3425f8bf77d SHA-256: 24669c1918947add0b958b3058a6b3256daa1e17f5a03512e5f1a087738b034d
98 Risk Score

Malware Insights

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

The PDF contains embedded JavaScript and a critical heuristic firing indicates a malicious redirector link. The link, http://botcraftman.ru/..., is likely intended to lead the user to a malicious website. The ML classifier also strongly flagged this PDF as malicious. The embedded JavaScript and redirector suggest an attempt to deliver a second-stage payload or phish for credentials.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 3

  • 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 JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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%BD%D0%B0%D0%BA%D0%BB%D0%B5%D0%B9%D0%BA%D0%B8+%D0%BD%D0%B0+%D0%B0%D0%B2%D1%82%D0%BE+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C&charset=utf-8
    • http://img1.liveinternet.ru/images/attach/c/7//4763/4763702_system__of__a_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4767/4767021_yarmak__lyublyu__tebya_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4762/4762239_skachat__fanfiki__po_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000517d3.bin
8d528d993da4175d7d516739a14ef5a7332866739280ae301526d43db7207039		 pdf-font-stream PDF embedded font (sfnt) at offset 0x517D3 10016 bytes
font_01_sfnt_off00053309.bin
b7f9451d3653c5467652f59b601679703a63292b85ac30a6c9deb4689e296153		 pdf-font-stream PDF embedded font (sfnt) at offset 0x53309 15408 bytes

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