Malicious PDF — malware analysis report

Static analysis result for SHA-256 a4a12a2ffc1c04d3…

MALICIOUS

PDF

352.5 KB Created: 2015-08-19 12:05:03 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 283432cc2f97de58e26006d3cfd712c5 SHA-1: d826a26fc47cd1c62970f9bfb0d843f192d81561 SHA-256: a4a12a2ffc1c04d396ffa46729eb7fb08f838045f1c261397ae2a13731e7626b
92 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 `http://botcraftman.ru/...` is the primary indicator of malicious intent, likely serving as a lure to a phishing or malware distribution site. No scripts were extracted, limiting the analysis of the file's specific payload delivery mechanism.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9979

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%A1%D1%82%D0%B0%D0%BD%D0%B8%D1%81%D0%BB%D0%B0%D0%B2+%D1%81%D0%B5%D1%80%D0%B3%D0%B5%D0%B5%D0%B2+%D1%82%D0%BE%D0%B2%D0%B0%D1%80%D0%B8%D1%89+%D0%B6%D0%B0%D0%BD%D0%B4%D0%B0%D1%80%D0%BC+2+%D1%87%D0%B8%D1%82%D0%B0%D1%82%D1%8C&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/6//4496/4496732_svatovstvo_so_storonuy_nevestuy_scenariy_v_stihah.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4626/4626471_korchevskiy_yuriy_feldeger_3_suyn_boyarskiy_skachat_besplatno.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4626/4626449_kak_aktivirovat_kod_produkta_origin_dlya_fifa_15.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000532a7.bin
389778f12f29681f9db1cc0c20942a38d0ffd006253791ab91556223d97a8edf
pdf-font-stream PDF embedded font (sfnt) at offset 0x532A7 9184 bytes
font_01_sfnt_off00054d64.bin
6bde20898029fe51a4174c8d2d3dcd8055707a7f36d6c07679a6429328fae8be
pdf-font-stream PDF embedded font (sfnt) at offset 0x54D64 17180 bytes