Malicious PDF — malware analysis report

Static analysis result for SHA-256 8689af4f4782e13e…

MALICIOUS

PDF

356.7 KB Created: 2015-08-29 11:45:10 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 471284c82492b9c13e6f74b37fbabac4 SHA-1: a5b85da8972eee8fa57039cdfaa84824933a2543 SHA-256: 8689af4f4782e13e88d4894fb28061e459b06734b42ab5be2c170cdd04909a9f
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a heuristic firing indicating it links 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 link suggests an attempt to lure the user to a compromised 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=%D0%97%D0%B0%D1%81%D1%82%D0%B0%D0%B2%D0%BA%D0%B0+%D0%BD%D0%B0+%D1%82%D0%B5%D0%BB%D0%B5%D1%84%D0%BE%D0%BD+%D0%B2%D0%BE%D0%BB%D0%BA%D0%B8&charset=utf-8
    • http://img1.liveinternet.ru/images/attach/c/7//4829/4829939_raskraski_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4830/4830273_starpoint__gemini__skachat_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4829/4829829_skachat__samuye__populyarnuye_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00054e78.bin
22576fa44f9953cbbf00dbaf3248136e6945fce01731795f1bbba33c33bd9f4c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x54E78 7828 bytes
font_01_sfnt_off00056529.bin
17fbfefc56115f32f0fe477b8c8f80dc5adbc76637700c151abe280768344f2a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x56529 15112 bytes

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