Malicious PDF — malware analysis report

Static analysis result for SHA-256 d56fd6c601c6c1e6…

MALICIOUS

PDF

184.3 KB Created: 2015-08-08 09:54:36 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: d154b7e3575d7b2a26413bbf9ccc0454 SHA-1: 76bf45c6cc97a38499284a643f28a7fa90db42e0 SHA-256: d56fd6c601c6c1e6b16bd75c70294bf12e37e39b3344dc7a888c3d5b00ad4f2f
150 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics, including a critical alert for a malicious redirector link. The primary malicious indicator is the embedded URL pointing to 'botcraftman.ru', which is known malicious infrastructure. This suggests the document is a lure to redirect users to a site that likely hosts further malicious content or exploits.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9982

Heuristics 3

  • 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.
  • ClamAV: Pdf.Dropper.Agent-7521364-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-7521364-0
  • 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%84%D0%B0%D0%B9%D0%BB+%D0%BA%D0%BE%D0%BD%D1%84%D0%B8%D0%B3%D1%83%D1%80%D0%B0%D1%86%D0%B8%D0%B8+phpmyadmin&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/6//4279/4279234_zndfl_za_2013_god_skachat_besplatno_programmu.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4384/4384326_anekdotuy_na_perce_skachat_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4384/4384286_skachat_auslogics_boostspeed_na_russkom_yazuyke.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00023d2d.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23D2D 3556 bytes
font_01_sfnt_off00024ab0.bin
476e4aa37bc7796a7e08d0f62c02890f87ddcf43cece7e5b03b70e7586191572		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24AB0 14632 bytes
font_02_sfnt_off000277a6.bin
a041e93009dba20ef911014e4ed33b048202adda89b8dd34d7ef92bfb159ec78		 pdf-font-stream PDF embedded font (sfnt) at offset 0x277A6 14732 bytes
font_03_sfnt_off0002a2f1.bin
cfdecbbd28dffa8c33f746efad15b5f34528f6f00e7d991e64c75b0a0c4814b6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A2F1 7128 bytes
font_04_sfnt_off0002b77a.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B77A 6084 bytes
font_05_sfnt_off0002c70f.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C70F 3752 bytes

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