Malicious PDF — malware analysis report

Static analysis result for SHA-256 5617368f1abb0505…

MALICIOUS

PDF

184.2 KB Created: 2015-07-24 08:45:45 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: e243cefd0fdc81507156bff99d4f7233 SHA-1: 23f573c25ddda69b6aa58e5b40ee26b314b87626 SHA-256: 5617368f1abb0505e7b2f2014c513ee31156d8ed66c37c21c84b29891bb3ed0f
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 Malicious Link

The PDF file was flagged by a critical heuristic for linking to known malicious redirector infrastructure. The ML classifier also assigned a high probability of maliciousness. The embedded URL, http://botcraftman.ru/..., is the primary indicator of compromise, suggesting the document is a lure to a malicious site.

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%98%D1%81%D1%82%D0%BE%D1%80%D0%B8%D1%8F+%D1%83%D0%BA%D1%80%D0%B0%D0%B8%D0%BD%D1%8B+9+%D0%BA%D0%BB%D0%B0%D1%81%D1%81+%D0%B4%D0%BF%D0%B0+2014&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185048_zil_5301_buychok_rukovodstvo_po_remontu_skachat_besplatno.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4189/4189302_gta_san_andreas_moduy_skachat_torrent.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185907_skachat_igru_bitva_za_tron_na_kompyuter.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00023e4f.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23E4F 3556 bytes
font_01_sfnt_off00024bd2.bin
1920bbf6b1b2ebf440ae9dfd4ad7a223159026fc725a600bf8da7b49fa97b858		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24BD2 14308 bytes
font_02_sfnt_off000278d4.bin
3606dedb67c921f6469ef823afb747192073f4d4642798dc07fcc6ff1546b993		 pdf-font-stream PDF embedded font (sfnt) at offset 0x278D4 14468 bytes
font_03_sfnt_off0002a38e.bin
f5c82bbd443909247fb888e1287ecc1da4e62b0d446db5cd597048cc2e91fa18		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A38E 6756 bytes
font_04_sfnt_off0002b71a.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B71A 6084 bytes
font_05_sfnt_off0002c6af.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C6AF 3752 bytes

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