Malicious PDF — malware analysis report

Static analysis result for SHA-256 d57653d89e6db841…

MALICIOUS

PDF

355.4 KB Created: 2015-08-28 11:42:03 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: df6d44019f937a08362ceaed683b2348 SHA-1: 88bc37a680ae14386346ea3760ecfb28135fb56f SHA-256: d57653d89e6db841da2153083bd78d0ea7c1cfbeaad58ab7ca1f41830807d2a5
92 Risk Score

Malware Insights

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

The PDF document 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 PDF is intended to redirect the user to a harmful site, likely for phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9889

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%BE%D0%B1%D1%80%D0%B0%D0%B7%D0%B5%D1%86+%D0%B0%D0%B2%D1%82%D0%BE%D0%B1%D0%B8%D0%BE%D0%B3%D1%80%D0%B0%D1%84%D0%B8%D0%B8+%D0%B4%D0%BB%D1%8F+%D1%84%D1%81%D0%B1&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/7//4802/4802494_skachat__forma__po_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4802/4802547_akt__o__predostavlenii_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4802/4802414_krasivuye__ramki__dlya_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000545a8.bin
ec0412919a2e926bf2096975d59c31fe90ed9c888b971407ea28d57c4afa7dd5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x545A8 7992 bytes
font_01_sfnt_off00055cda.bin
929eb8cf49a5212db1ed19749e9d3624e5f6dd503e3308460c0882adea92afb9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x55CDA 15904 bytes

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