Malicious PDF — malware analysis report

Static analysis result for SHA-256 9564293eaaa28be9…

MALICIOUS

PDF

356.2 KB Created: 2015-08-28 17:29:14 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 3607f69de39466f50a4b8e9911a4f073 SHA-1: 16bfcba30b426b104da91b48e3e391931c037086 SHA-256: 9564293eaaa28be9208a9c14667cd8a7dd2638a5b8ec0d05b725b59534f464ff
90 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and contains a link to a known malicious redirector. The embedded URL, http://botcraftman.ru/, is likely used to direct users to a malicious site. No scripts were extracted, and the document body was heavily truncated, limiting further analysis of the specific lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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+%D1%82%D0%BE%D1%80%D1%80%D0%B5%D0%BD%D1%82+%D0%BA%D1%80%D0%B5%D1%81%D1%82%D0%BD%D1%8B%D0%B9+%D0%BE%D1%82%D0%B5%D1%86+2&charset=utf-8
    • http://img1.liveinternet.ru/images/attach/c/7//4809/4809105_skachat__beluyy_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4809/4809129_soft__dlya__windows_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4809/4809116_raspisanie__avtobusov__yurevec_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00054b29.bin
45de704841edfc03ad4c57c7ce4cd44373562a522d1fc831b40cb16b33f2ea91		 pdf-font-stream PDF embedded font (sfnt) at offset 0x54B29 8536 bytes
font_01_sfnt_off00056271.bin
36c9cc1221c179c0b302f1590e74797b63bf69f020998e8983c354e36c0d903d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x56271 14796 bytes

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