Malicious PDF — malware analysis report

Static analysis result for SHA-256 3cf2aa99477abe09…

MALICIOUS

PDF

185.2 KB Created: 2015-07-23 20:18:08 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 0097a8f749ed04934bf45c8589ef7bee SHA-1: 96814ca11d0e39c19c76decdb9b37da6ad9b2507 SHA-256: 3cf2aa99477abe0949e0e22e14065e296fec90ee8b619c4d75045f035b5c198e
90 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and contains a link to a known malicious redirector, http://botcraftman.ru/. This suggests the document is designed to lure users to a malicious website. No scripts were extracted, and the document body was truncated, 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%9A%D0%B0%D0%BA+%D1%81%D0%BD%D1%8F%D1%82%D1%8C+%D0%B4%D0%B5%D0%BD%D1%8C%D0%B3%D0%B8+%D1%81+%D1%84%D0%BE%D0%BD%D0%B1%D0%B5%D1%82%D0%B0&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/5//4183/4183175_lada_kalina_yelektricheskaya_shema.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184471_dnevnik_po_praktike_v_prokurature_2015.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184483_i_yeho_letit_po_goram_skachat_epub.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000241de.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x241DE 3556 bytes
font_01_sfnt_off00024f61.bin
2cf27d9e5a25db038d31b88aabe0605a55e00c89cfb88a3fa3728b348adcc8b8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24F61 14664 bytes
font_02_sfnt_off00027d32.bin
dde8cb3db78f49492d397de1013a074ab9c596bc0508faa33f94bd64189db0ac		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27D32 14468 bytes
font_03_sfnt_off0002a7e5.bin
49a19824a966808693acf4447e5d81bc56bad39f9f5d03d38f91ac0afd849cf1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A7E5 6688 bytes
font_04_sfnt_off0002baf7.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BAF7 6084 bytes
font_05_sfnt_off0002ca8c.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CA8C 3752 bytes

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