Malicious PDF — malware analysis report

Static analysis result for SHA-256 4ca974e8d52bb15b…

MALICIOUS

PDF

353.9 KB Created: 2015-08-28 11:33:42 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 04d27f60f02300a5f61b62ca4a92d43b SHA-1: 66bec32806f3de3ac8c8eb61e0d61156accb201f SHA-256: 4ca974e8d52bb15b6e51f41e7eb364e970090f3f60bac52b6a6dc6c468511c51
90 Risk Score

Malware Insights

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

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 strongly flagged this PDF as malicious. No scripts were extracted, but the presence of the malicious URL is sufficient evidence for the attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9970

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%83%D1%81%D0%BA%D0%BE%D1%80%D0%B8%D1%82%D0%B5%D0%BB%D1%8C+%D0%B8%D0%BD%D1%82%D0%B5%D1%80%D0%BD%D0%B5%D1%82%D0%B0+3g+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%B1%D0%B5%D1%81%D0%BF%D0%BB%D0%B0%D1%82%D0%BD%D0%BE&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/7//4802/4802390_dragunkin__angliyskiy__yazuyk_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4802/4802435_iskovoe__zayavlenie__v_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000541e0.bin
8f9806c43523a06e3dd7e121c9a87e5f020b3ca013e2b64823409368d964a9cf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x541E0 7992 bytes
font_01_sfnt_off00055923.bin
0fdb743c62484302be51c85f87345f60e16a703ce8cd479d10295a2ab91ff2ce		 pdf-font-stream PDF embedded font (sfnt) at offset 0x55923 14756 bytes

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