Malicious PDF — malware analysis report

Static analysis result for SHA-256 b3d02f83d86f01be…

MALICIOUS

PDF

187.7 KB Created: 2015-07-24 03:54:17 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: beae00cb4993c98c42fd791e13f2e0c4 SHA-1: a860a9a047f18e94d0fd7c30b978f05ab128c514 SHA-256: b3d02f83d86f01bed0fee5d09ceb7f020c96315c17d09235958359abf4d7abcc
90 Risk Score

Malware Insights

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

The PDF file was flagged by a critical heuristic for linking to known malicious redirector infrastructure. The ML classifier also strongly indicated maliciousness. The embedded URL points to botcraftman.ru, which is identified as a malicious redirector. This suggests the document's primary purpose is to lure users to a malicious site, likely for phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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%B5%D1%80%D0%B8%D0%B0%D0%BB+%D0%B5%D0%BA%D0%B0%D1%82%D0%B5%D1%80%D0%B8%D0%BD%D0%B0+%D1%81+%D0%BC%D0%B0%D1%80%D0%B8%D0%BD%D0%BE%D0%B9+%D0%B0%D0%BB%D0%B5%D0%BA%D1%81%D0%B0%D0%BD%D0%B4%D1%80%D0%BE%D0%B2%D0%BE%D0%B9+%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://img0.liveinternet.ru/images/attach/c/5//4184/4184423_igruy_maynkraft_onlayn_besplatno_v_horoshem_kachestve.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185704_skachat_gta_san_andreas_s_modami_cherez_torrent_2015.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184940_raspisanie_avtobusa_25_pravda_tishkovo.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002499f.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2499F 3556 bytes
font_01_sfnt_off00025722.bin
fa8ec844aea7722c46bc95fa7714cf5b8dd25ddffd8b836bb389d9426fa3892c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x25722 15216 bytes
font_02_sfnt_off00028724.bin
c33e6903d76079777c1b082a355654bfa5653b97afd40bc3e5344b34556d24bd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x28724 14468 bytes
font_03_sfnt_off0002b1d6.bin
f661b5df78951c536ea3d688ddcdfee028d3f5ac802115d48411e49d1538767f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B1D6 6692 bytes
font_04_sfnt_off0002c508.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C508 6084 bytes
font_05_sfnt_off0002d49d.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D49D 3752 bytes

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