Malicious PDF — malware analysis report

Static analysis result for SHA-256 dd521188150ef221…

MALICIOUS

PDF

182.7 KB Created: 2015-08-08 09:36:36 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: e911b915d72fd0368b655754f1e743f6 SHA-1: 8836b1a028626d54577f1c9a765e044694b543f5 SHA-256: dd521188150ef2210e28657d8fb8cbe9a4520993d8759b75e98ed7080701914a
92 Risk Score

Malware Insights

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

The PDF file contains a link to a known malicious redirector, indicating an attempt to lure the user to a harmful site. The ML classifier also flagged this PDF with high confidence. No scripts were extracted, and the document body was not parsable, limiting further analysis of the specific lure.

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%BF%D0%B1%D1%83+10+99+%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//4384/4384040_skachat_novuye_sborki_os_windows_7_cherez_torrent_2014_goda.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4383/4383886_total_komander_russkiy_skachat_besplatno_2015.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4384/4384076_skachat_vord_besplatno_torrent.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00023a83.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23A83 3556 bytes
font_01_sfnt_off00024806.bin
d9e032ab505b96c730fa4a847f20a3752a3f122fc742745d9fa2be63053586a9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24806 14112 bytes
font_02_sfnt_off0002748f.bin
ca345135aa381a9982d5b89bb1d3ea530bb0af0bd9f4569b91294970ce9e6c5e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2748F 14468 bytes
font_03_sfnt_off00029f41.bin
e7065340096eaf55b33359ed1efb6a80b6f1cae5df298a931e8a39807b5871ae		 pdf-font-stream PDF embedded font (sfnt) at offset 0x29F41 6240 bytes
font_04_sfnt_off0002b0df.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B0DF 6084 bytes
font_05_sfnt_off0002c074.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C074 3752 bytes

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