Malicious PDF — malware analysis report

Static analysis result for SHA-256 11ccf98035a60758…

MALICIOUS

PDF

367.2 KB Created: 2015-08-28 11:29:41 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 96d5edcbdd8c60dc2991a32b2f0fae78 SHA-1: c5808058e63011d119fab65d1301c9f9727a6b84 SHA-256: 11ccf98035a607588a61c12e1078fefee83f35c18f397b74f88362e656a0d129
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a critical heuristic firing indicating a link to known malicious redirector infrastructure. The embedded URL points to 'botcraftman.ru', which is flagged as malicious. While no scripts were extracted, the presence of a malicious redirector strongly suggests an attempt to lure the user to a harmful site, likely for phishing or to download further malware.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9963

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%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+deadpool+%D1%82%D0%BE%D1%80%D1%80%D0%B5%D0%BD%D1%82&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/7//4802/4802358_kak__vosstanovit__udalennuye_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4802/4802359_panorama__romanov__o_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4802/4802360_panasonic_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00057872.bin
27715d490013a1b7adb775c7d54168b16fd73109f21e56faff10b75f5fd288fc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x57872 7592 bytes
font_01_sfnt_off00058cbc.bin
4039d33c2cb8e3eeaa1628bf7601ceada05368966059216759d417dc919e80c8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x58CBC 16372 bytes

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