Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea5e6d9d7b2d5155…

MALICIOUS

PDF

344.8 KB Created: 2015-08-19 14:02:34 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 290b6098c1adf0bab20be28cae98fe9a SHA-1: 4a2281099ad62dd5e30a37825ba920ec91f7fdfa SHA-256: ea5e6d9d7b2d5155fb199779b9d06cd583384dad37b39876a6a29dd0054d6529
92 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The PDF file was flagged by a machine learning classifier and contains a link to a known malicious redirector. The embedded URL points to botcraftman.ru, which is associated with malicious redirector infrastructure. The document body is heavily obfuscated and does not provide clear textual clues about its intent, but the presence of the malicious link strongly suggests a phishing or malware delivery attempt.

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=anwap+org+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D1%84%D0%B8%D0%BB%D1%8C%D0%BC%D1%8B+%D0%BD%D0%B0+%D1%82%D0%B5%D0%BB%D0%B5%D1%84%D0%BE%D0%BD&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/6//4626/4626645_serialuy_pro_voynu_19411945_russkie_novinki_2014_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4626/4626481_pin_koduy_dlya_varfeys_2015_iyun.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4496/4496744_otvetuy_na_biletuy_stropalschika_skachat_besplatno.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00051be1.bin
323d6d7622140979d022769a95025da709d0d4cb1a8c0da0d9f0293bfa586ab5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x51BE1 8976 bytes
font_01_sfnt_off000534a3.bin
0baffbe3ea61d4a3b58536c73cd90e0ca7a33477924361024780a70ff8291e17		 pdf-font-stream PDF embedded font (sfnt) at offset 0x534A3 15256 bytes

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