Malicious PDF — malware analysis report

Static analysis result for SHA-256 8005a9f52c54094b…

MALICIOUS

PDF

186.7 KB Created: 2015-08-08 09:33:44 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 5f2227b4c56644b3ed1c0d70d267b270 SHA-1: 764577fa17a401764549c416470d1a74e301427d SHA-256: 8005a9f52c54094b9222777579c63608a5455c481b793482849dfda6a36cfe22
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document was flagged by multiple heuristics as malicious, specifically due to a link pointing to known malicious redirector infrastructure. The embedded URL `http://botcraftman.ru/...` is identified as a malicious redirector, suggesting the document's purpose is to lure users to a harmful site. No scripts were extracted, but the presence of a malicious link is sufficient evidence of malicious intent.

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=chuck+berry+%D0%B4%D0%B8%D1%81%D0%BA%D0%BE%D0%B3%D1%80%D0%B0%D1%84%D0%B8%D1%8F+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D1%82%D0%BE%D1%80%D1%80%D0%B5%D0%BD%D1%82&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/6//4383/4383781_sertifikat_kachestva_blank.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4383/4383921_super_telo_za_1_chas_v_den_torrent.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4383/4383709_yetnogenez_greshniki_korporaciya_kolco_skachat_fb2.pdf
    • http://www.microsoft.com/typography/fonts/
    • http://www.microsoft.com/typography/fonts/You

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002440b.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281
pdf-font-stream PDF embedded font (sfnt) at offset 0x2440B 3556 bytes
font_01_sfnt_off0002518e.bin
eb4166ebbaac5732183b7845f8941588ed69d0560ad284cee3a2c21df2230163
pdf-font-stream PDF embedded font (sfnt) at offset 0x2518E 14988 bytes
font_02_sfnt_off0002806e.bin
db0078db72566efb87847c3bca0bf1176d994ddd8e2d420329a815514da05837
pdf-font-stream PDF embedded font (sfnt) at offset 0x2806E 14912 bytes
font_03_sfnt_off0002abb2.bin
f54308d544316f758f0641120f9639699677a383d972fb6e7e21713d579bbb2f
pdf-font-stream PDF embedded font (sfnt) at offset 0x2ABB2 7276 bytes
font_04_sfnt_off0002c105.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3
pdf-font-stream PDF embedded font (sfnt) at offset 0x2C105 6084 bytes
font_05_sfnt_off0002d09a.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e
pdf-font-stream PDF embedded font (sfnt) at offset 0x2D09A 3752 bytes