Malicious PDF — malware analysis report

Static analysis result for SHA-256 2ae5b1cbdc16644e…

MALICIOUS

PDF

184.1 KB Created: 2015-07-23 21:37:01 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 9f70d687d5d5fcfcd5cece52e31aa2ce SHA-1: 2295b7b79b5adcf23c88732e0d1f9caa2eed3b65 SHA-256: 2ae5b1cbdc16644eebf54e701e5426269bfd4b17ba6def19c2b31fb413a18231
90 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, http://botcraftman.ru/, which is a strong indicator of malicious intent. The ML classifier also flagged this PDF with high confidence. The document body appears to be malformed or truncated, preventing a more detailed analysis of its content, but the presence of the malicious URL is sufficient to classify it as a likely phishing or malware distribution 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=Gta+5+online+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%BD%D0%B0+pc&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184807_kitayskiy_massazher_health_herald_instrukciya_na_russkom.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4183/4183241_shema_dvigatelya_izh_planeta_5.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184365_mortal_kombat_vs_dc_universe_pc_skachat_torrent.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00023aa3.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23AA3 3556 bytes
font_01_sfnt_off00024826.bin
04f517b44563dccec27f8814d7b4c60c6696c25af8ac485ed6d3308672f7b96e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24826 15152 bytes
font_02_sfnt_off000276d6.bin
b26330c6a95bd9746d2e51cf57d1ebbc1a68decc8e6670d9623b75684dc4a226		 pdf-font-stream PDF embedded font (sfnt) at offset 0x276D6 14904 bytes
font_03_sfnt_off0002a2df.bin
3d5e7d399f39bcd00d9b0234bfeba3c161cfb47fdcf598f4f1cf0625dc76dacb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A2DF 6808 bytes
font_04_sfnt_off0002b68a.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B68A 6084 bytes
font_05_sfnt_off0002c61f.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C61F 3752 bytes

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