Malicious PDF — malware analysis report

Static analysis result for SHA-256 1d75eab88bb81b5a…

MALICIOUS

PDF

352.5 KB Created: 2015-08-28 11:54:26 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: b7e0dff361ae5a1e76fa108273718a8c SHA-1: e297875f6ae6b32db5e146d290cd7e51b3d7ae2a SHA-256: 1d75eab88bb81b5ac83d03f5e08cc87b574c09128152e236ee544b360f654f07
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/?lip&keyword=%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%BF%D0%BB%D0%B0%D0%B3%D0%B8%D0%BD%D1%8B+%D0%B4%D0%BB%D1%8F+%D1%81%D0%B5%D1%80%D0%B2%D0%B5%D1%80%D0%B0+%D0%BA%D1%81+16&charset=utf-8` is the primary indicator of malicious intent. This suggests the document is designed to lure users to a malicious site, likely for further exploitation or credential harvesting.

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+%D0%BF%D0%BB%D0%B0%D0%B3%D0%B8%D0%BD%D1%8B+%D0%B4%D0%BB%D1%8F+%D1%81%D0%B5%D1%80%D0%B2%D0%B5%D1%80%D0%B0+%D0%BA%D1%81+16&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/7//4802/4802376_skachat__zhestokoe_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4802/4802540_kod__na__gta_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4802/4802697_chituy__na__war_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00053cd7.bin
2b172416d1a18c8f90b567717d0bc1fc9679e7956e7e0a68f681b604337c8029		 pdf-font-stream PDF embedded font (sfnt) at offset 0x53CD7 8620 bytes
font_01_sfnt_off00055628.bin
288403458b0e2f09a4adf02ecb218abd2217b456955179f2f5b7b3a609de6175		 pdf-font-stream PDF embedded font (sfnt) at offset 0x55628 14280 bytes

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