Malicious PDF — malware analysis report

Static analysis result for SHA-256 f05d2a10aa0761bd…

MALICIOUS

PDF

185.7 KB Created: 2015-08-08 10:04:04 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 39db05b10316a6ac64115a6564ed9d8f SHA-1: 7a90b0b6c08742f905bdf64644f85da5a3128832 SHA-256: f05d2a10aa0761bd926afd01239c4dd2ed2025e36c086780886e7a28c4767125
90 Risk Score

Malware Insights

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

The PDF file 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, http://botcraftman.ru/..., is the primary indicator of malicious intent, likely serving as a lure to a phishing or malware distribution site. No scripts were extracted, and the document body was not sufficiently readable to provide further context.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9982

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%94%D1%80%D0%B0%D0%B9%D0%B2%D0%B5%D1%80+%D0%BD%D0%B0+%D1%81%D0%B0%D0%BC%D1%81%D1%83%D0%BD%D0%B3+gt-s3600i+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/6//4384/4384474_guild_wars_2_besplatnuyy_russkiy_server_torrent.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4383/4383709_yetnogenez_greshniki_korporaciya_kolco_skachat_fb2.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4384/4384790_koreyskiy_serial_uzbek_tilida_kuz_yertagi.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_048_off0002a761.bin
f584c4592e2903e49aa87fdb46fb4ace7b1b94b4149a43bbf329fabc0901cbeb		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2A761 7360 bytes
font_00_sfnt_off00023ffa.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23FFA 3556 bytes
font_01_sfnt_off00024d7d.bin
cb541adaec63b80cad14e7cebd91307c2960addf6bba9c52be03d5ed398058eb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24D7D 15072 bytes
font_02_sfnt_off00027c4d.bin
5025b78e3a28c7c96211dd5e205a7be06733de83fe82002e7b9a80c6af067ad2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27C4D 14576 bytes
font_04_sfnt_off0002bd05.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BD05 6084 bytes
font_05_sfnt_off0002cc9a.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CC9A 3752 bytes

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