Malicious PDF — malware analysis report

Static analysis result for SHA-256 d369e2b441a0e408…

MALICIOUS

PDF

366.4 KB Created: 2015-08-25 22:24:49 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 397a17821b46767de05862536c917709 SHA-1: edcdd38e2496db03e2e286a3a44886e24f8b8040 SHA-256: d369e2b441a0e408aad4c091ac9a829862c82bd09e6e8a1396bcf6ee4b0dd018
90 Risk Score

Malware Insights

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

The PDF file was flagged by a critical heuristic for linking to known malicious redirector infrastructure. The ML classifier also assigned a high probability of maliciousness. The embedded URL points to 'botcraftman.ru', which is identified as a malicious redirector. This suggests the document's primary purpose is to lure the user to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9943

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=%D0%B8%D0%B3%D1%80%D0%B0+%D0%BF%D1%80%D0%B5%D1%81%D1%82%D0%BE%D0%BB%D0%BE%D0%B2+%D0%BA%D0%BD%D0%B8%D0%B3%D0%B8+%D0%BF%D0%BE+%D0%BF%D0%BE%D1%80%D1%8F%D0%B4%D0%BA%D1%83+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+fb2&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/7//4740/4740861_assassins__creed__revelations_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4740/4740684_zhurnalnuyy__klyuch__dlya_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4740/4740887_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00056bb1.bin
3c12b2ba5a791661babcf147aa1108b12e6f34600bcef381a845085999078912		 pdf-font-stream PDF embedded font (sfnt) at offset 0x56BB1 8952 bytes
font_01_sfnt_off00058626.bin
15c152efc20efe8f03dc90a5791fd130a0179ca8d9712be9e5033400580efaa1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x58626 16784 bytes

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