Malicious PDF — malware analysis report

Static analysis result for SHA-256 de26d3bd9b11ad7f…

MALICIOUS

PDF

384.8 KB Created: 2015-08-24 01:40:17 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 1b6d3f6678b98fe6f6e65f011adf26d7 SHA-1: 5c501da25ce5b7bbd4b4c67b19c5b20e5e00b577 SHA-256: de26d3bd9b11ad7f2a0ada4753863c16c0f355fdcf6352d3f6e4fc156d732bc5
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 infrastructure. The ML classifier also flagged this PDF with high confidence. The embedded URL is likely intended to lure the user to a site that hosts malicious content or attempts to phish for credentials.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9972

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=1%D1%81+%D0%BF%D1%80%D0%B5%D0%B4%D0%BF%D1%80%D0%B8%D1%8F%D1%82%D0%B8%D0%B5+82+%D1%81%D0%B0%D0%BC%D0%BE%D1%83%D1%87%D0%B8%D1%82%D0%B5%D0%BB%D1%8C+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D1%82%D0%BE%D1%80%D1%80%D0%B5%D0%BD%D1%82&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/6//4694/4694753_albom__irinuy__krug_.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4695/4695134_icatvision_.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4694/4694418_skachat__fermer__simulyator_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005bd0f.bin
194ad1d26b895bf9e3629fb075e2b55b5144f6a48e7ce897258d0205701dbbf2
pdf-font-stream PDF embedded font (sfnt) at offset 0x5BD0F 8468 bytes
font_01_sfnt_off0005d5be.bin
726528ad87e9db32e6dbed5b8973876b9a98f5e3d7944231b41d5aa84d58329e
pdf-font-stream PDF embedded font (sfnt) at offset 0x5D5BE 14752 bytes