Malicious PDF — malware analysis report

Static analysis result for SHA-256 48df8175ca7de47d…

MALICIOUS

PDF

345.2 KB Created: 2015-08-20 08:58:37 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 06ae8c96d8ade3d1f227d58fad1234aa SHA-1: fd1db4eaa4fd1770413a517b39894d98f6da6337 SHA-256: 48df8175ca7de47db88b041f6ebbb6d3bcad41416ccf7a3115919959fae1f4f8
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. This indicates the document is likely designed to lure users to a malicious website. No scripts were extracted, and the document body was heavily obfuscated, preventing further analysis of its specific content or intent beyond the malicious link.

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%80%D0%B0%D1%81%D0%BA%D0%BB%D0%B0%D0%B4%D0%BA%D0%B0+%D0%BB%D0%B0%D0%BC%D0%B8%D0%BD%D0%B0%D1%82%D0%B0+%D0%BF%D1%80%D0%BE%D0%B3%D1%80%D0%B0%D0%BC%D0%BC%D0%B0&charset=utf-8
    • http://img1.liveinternet.ru/images/attach/c/6//4639/4639292_batlanakrutka.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4639/4639515_reshebnik_vuysshaya_matematika_dlya_yekonomistov_kremera.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4638/4638847_skachat_ubiorbitapi_r2dll_dlya_assassins_creed_2.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00051c34.bin
7874162e1cdf98665885f9d65e353d972f98dc3b942a78991fdf7a987eea954b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x51C34 8052 bytes
font_01_sfnt_off0005330d.bin
63f3d38177f19f4092477cfaf5c276e1074a55ab6a8e8dc29b5f6229837bad48		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5330D 16804 bytes

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