Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d9e98d796b8da5e…

MALICIOUS

PDF

351.2 KB Created: 2015-08-28 17:32:26 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 5e983d77aa01ee57511959eb55cad88d SHA-1: 29e2b07664343ed5ef8d69d2248743d35d6f2691 SHA-256: 0d9e98d796b8da5e6516570c18bab920f513dcbd22bf367fc929edb853ecd1fe
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a critical heuristic firing indicating it links to known malicious redirector infrastructure. The embedded URL, http://botcraftman.ru/, is identified as the malicious redirector. While no scripts were explicitly extracted, the nature of the PDF and the malicious link suggest an attempt to lure the user to a compromised site, likely for further exploitation or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9979

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=dslr+controller+%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//4809/4809216_krovostok__cherepovec_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4809/4809230_taynuy__sledstviya__8_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4809/4809121_shriftuy__dlya_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00053476.bin
9c419ee8405c299856ca90b2fd89ed3a0791e94e8d31c55fa10801531e40fb46		 pdf-font-stream PDF embedded font (sfnt) at offset 0x53476 8972 bytes
font_01_sfnt_off00054d2a.bin
388177dddfb90b7cc0eccbfa4dd258e664a89ace0862a9e9496f77123c43778a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x54D2A 15440 bytes

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