Malicious PDF — malware analysis report

Static analysis result for SHA-256 49a12bae230feb31…

MALICIOUS

PDF

187.1 KB Created: 2015-07-24 04:37:45 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 1ba424298dac8e6981ab35c9bef28978 SHA-1: 923206818511414159e961a4bad695a953f6b3cd SHA-256: 49a12bae230feb31621093942303390163f9ff41f4fb5d4aa454bb2c518f32ae
90 Risk Score

Malware Insights

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

The PDF contains an embedded link to a known malicious redirector. The ML classifier also flagged this PDF with high confidence. The primary attack vector appears to be directing the user to the malicious URL http://botcraftman.ru/ for further exploitation.

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=%D1%87%D0%B5%D1%80%D0%B5%D0%BF%D0%B0%D1%88%D0%BA%D0%B8+%D0%BD%D0%B8%D0%BD%D0%B4%D0%B7%D1%8F+1+%D1%81%D0%B5%D0%B7%D0%BE%D0%BD+%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://img1.liveinternet.ru/images/attach/c/5//4185/4185577_kubanskiy_kazachiy_hor_skachat_torrent.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185142_artur_rudenko_vse_pesni_slushat_i_skachat_besplatno.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4187/4187050_black_ink_skachat_torrent.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000247d0.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x247D0 3556 bytes
font_01_sfnt_off00025553.bin
1b75420fa81246cf7b7159d13a9fa9d38bb24947a865ea6cfc5a3c8a254a336a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x25553 14964 bytes
font_02_sfnt_off00028434.bin
5abc41ecf9d4346fed8f4d944dfa86d2a47658b8cee5b98ce78dd6de0d32cf2a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x28434 14636 bytes
font_03_sfnt_off0002af63.bin
801a4028077bbb1b5afe91b0724df7b52ce6cac03c9458f8f5e90f60fcc59549		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2AF63 6668 bytes
font_04_sfnt_off0002c271.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C271 6084 bytes
font_05_sfnt_off0002d206.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D206 3752 bytes

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