Malicious PDF — malware analysis report

Static analysis result for SHA-256 e74e397f09282485…

MALICIOUS

PDF

356.8 KB Created: 2015-08-21 09:23:01 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: ae67f9540fdc3eea992f4138dd7f45d4 SHA-1: ddfabe8a94ac67e59a97f72e39e0fcb48f8e1189 SHA-256: e74e397f092824856b271114749d139f157c637be439d36dbf4b3157d410d4d6
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. No scripts were extracted, and the document body was truncated, limiting further analysis of the specific lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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=%D0%91%D0%B8%D0%BB%D0%B5%D1%82%D1%8B+%D1%80%D0%BE%D1%81%D1%82%D0%B5%D1%85%D0%BD%D0%B0%D0%B4%D0%B7%D0%BE%D1%80%D0%B0+%D0%BF%D0%BE+%D1%8D%D0%BB%D0%B5%D0%BA%D1%82%D1%80%D0%BE%D0%B1%D0%B5%D0%B7%D0%BE%D0%BF%D0%B0%D1%81%D0%BD%D0%BE%D1%81%D1%82%D0%B8+5+%D0%B3%D1%80%D1%83%D0%BF%D0%BF%D0%B0&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/6//4654/4654697_ts4exe_skachat_dlya_sims_4.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4654/4654805_skachat_tovarnuyu_nakladnuyu_torg12_v_vorde_na_odnom_liste.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4654/4654727_mount_and_blade_krestonoscuy_put_k_iskupleniyu_skachat_torrent.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00054b16.bin
b7706b9f2db033c0d19f0b69d16fb20497727dba7d4a613d6ecd9abfebddc5b7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x54B16 9256 bytes
font_01_sfnt_off00056511.bin
ef556bb6983165089f4724c7d5de9589047b81327e6a5977527086f67b0f8a27		 pdf-font-stream PDF embedded font (sfnt) at offset 0x56511 15628 bytes

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