Malicious PDF — malware analysis report

Static analysis result for SHA-256 576c622164279692…

MALICIOUS

PDF

360.1 KB Created: 2015-08-22 08:56:29 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: a135c35d0eaff0d051d3157de0981a1c SHA-1: 946a75e41d968170e8c38c627f90ecd69c275b06 SHA-256: 576c6221642796928893c7bab010d2c2cd3dd5a5e5d20d6a7e70a89ba6b14f80
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 presence of this link suggests the document is designed to lure users to a potentially harmful website. No scripts were extracted, and the document body was heavily obfuscated, preventing further analysis of its specific intent.

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%BA%D0%BE%D0%BC%D0%BF%D1%8C%D1%8E%D1%82%D0%B5%D1%80%D0%BD%D1%8B%D0%B9+%D0%BA%D1%80%D0%BE%D0%B9+%D0%BB%D0%B0%D0%BC%D0%B1%D1%80%D0%B5%D0%BA%D0%B5%D0%BD%D0%BE%D0%B2+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%B1%D0%B5%D1%81%D0%BF%D0%BB%D0%B0%D1%82%D0%BD%D0%BE+%D1%82%D0%BE%D1%80%D1%80%D0%B5%D0%BD%D1%82&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/6//4674/4674486_friends_2_uchebnik_skachat_besplatno.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4674/4674510_naputstvie_vuypusknikam_11_klassa_ot_klassnogo_rukovoditelya.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4674/4674527_vadim_panov_dikie_persuy_skachat_fb2.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00055977.bin
8145292dd8762b55ba3f8c9fef9ab4cc04ade5c72bfceb3d1a66335fcd661a03		 pdf-font-stream PDF embedded font (sfnt) at offset 0x55977 8288 bytes
font_01_sfnt_off00057112.bin
3663f433c7cc05de4e26d701b7442c42e4a1d61c57d77df85e0936752c31223d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x57112 15228 bytes

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