Malicious PDF — malware analysis report

Static analysis result for SHA-256 092ff6afdb3d8a92…

MALICIOUS

PDF

183.7 KB Created: 2015-07-27 09:27:51 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 6b37feb1d4c6c2adcea1cf37bf54ac32 SHA-1: 4ccde4aee3e3796e7f1d9b9b5e0c246418cd44b4 SHA-256: 092ff6afdb3d8a920cbc3f03263640a5dd7d45e5a78b95dbc1b5514ca7d21592
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF was flagged by a malicious redirector heuristic, pointing to the URL http://botcraftman.ru/. This suggests the document's primary purpose is to lure the user to a malicious site, likely for phishing or malware delivery. No scripts were extracted, but the presence of embedded URLs and the ML classifier's high confidence indicate 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=%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+gta+5+%D0%B4%D0%BB%D1%8F+psp&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/5//4199/4199540_homchenko_dlya_postupayuschih_v_vuzuy_gdz.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4194/4194081_kartuy_so_sputnika_onlayn_v_realnom_vremeni.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4222/4222087_skachat_programmu_dlya_skachivaniya_muzuyki_i_video_iz_kontakta.pdf
    • http://www.microsoft.com/typography/fonts/You
    • http://www.microsoft.com/typography/fonts/

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_048_off0002a1b1.bin
ab609cfd88ed1fe1e49484924d9fcc1d2cd3308fe8300d96f95a79fdb3116626		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2A1B1 6764 bytes
font_00_sfnt_off00023c13.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23C13 3556 bytes
font_01_sfnt_off00024996.bin
a1fe77bdc60db69588ba6983fb4a4e0a6e006248cf4af44f08a389975274e757		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24996 14364 bytes
font_02_sfnt_off00027622.bin
158b80332c38f877e378889c9fe2a014937fd4c783c099af3befc5d9e52a86b6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27622 14756 bytes
font_04_sfnt_off0002b52e.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B52E 6084 bytes
font_05_sfnt_off0002c4c3.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C4C3 3752 bytes

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