Malicious PDF — malware analysis report

Static analysis result for SHA-256 9249b08ea773e804…

MALICIOUS

PDF

184.8 KB Created: 2015-08-08 09:53:39 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: e3b3eace585cb3ab361f14af3852adcb SHA-1: a336a3061f2adf320c9415e8d60630ddfc293e39 SHA-256: 9249b08ea773e804608231e73407d6bb4fd898632281c804c44db7e81b8629f3
92 Risk Score

Malware Insights

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

The PDF file was flagged by a critical heuristic for containing a link to a known malicious redirector. The ML classifier also assigned a high probability of maliciousness. The embedded URL 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 unreadable binary data.

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%BB%D1%8E%D0%BC%D0%B5%D0%BD+%D0%B2%D1%81%D0%B5+%D0%B0%D0%BB%D1%8C%D0%B1%D0%BE%D0%BC%D1%8B+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D1%82%D0%BE%D1%80%D1%80%D0%B5%D0%BD%D1%82&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/6//4384/4384599_skachat_vord_dlya_nokia_5228.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4383/4383705_skachat_obuchayuschie_multfilmuy_dlya_detey.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4384/4384006_skachat_priyatnuyu_muzuyku_besplatno.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024045.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24045 3556 bytes
font_01_sfnt_off00024dc8.bin
bf5874f5b809805156de1b0267f5e57b508c904511004e16bbfcff77914ec03d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24DC8 14420 bytes
font_02_sfnt_off00027b0e.bin
e68f81527f1cd5a6307854472862c4c4219a83f5c07265ef16b2cd24c96f1be3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27B0E 14468 bytes
font_03_sfnt_off0002a5bf.bin
3a0718622eff37bfb1667a8448366ee3896a9479167bc2ac8bb54e32f7e29b28		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A5BF 6860 bytes
font_04_sfnt_off0002b983.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B983 6084 bytes
font_05_sfnt_off0002c918.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C918 3752 bytes

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