Malicious PDF — malware analysis report

Static analysis result for SHA-256 7754379bfcdce01e…

MALICIOUS

PDF

337.3 KB Created: 2015-08-25 15:27:00 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: d074b7833c9179d6b6f98c3b2e107e29 SHA-1: 194da6cea1119c2a0c062afb2c9e8751ccb399d9 SHA-256: 7754379bfcdce01e448b77bbbb234495e1ce65d8293a9734c7220f3f327bdece
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a critical heuristic firing indicating a link to known malicious redirector infrastructure. The embedded URL, http://botcraftman.ru/..., is the primary indicator of malicious intent. While no scripts were extracted, the presence of a malicious redirector strongly suggests the document is designed to lure users to a harmful 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+%D1%87%D0%B0%D1%82+%D1%82%D0%B5%D1%82+%D0%B0+%D1%82%D0%B5%D1%82&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/7//4732/4732198_nightwish__skachat__besplatno_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4732/4732393_skachat__maynkraft__164_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4731/4731404_avatar__legenda__ob_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00050586.bin
13fe37f9e870336235c9bbffaceb4823f3dbadc6033b055ea9631ae283227557		 pdf-font-stream PDF embedded font (sfnt) at offset 0x50586 6652 bytes
font_01_sfnt_off000518e8.bin
57ca0603f03c54ceb0d8fb64df7b3ff59b472cacfac27af4e9430cc6dd59d554		 pdf-font-stream PDF embedded font (sfnt) at offset 0x518E8 14288 bytes

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