Malicious PDF — malware analysis report

Static analysis result for SHA-256 f2b5d9c5b89ba39a…

MALICIOUS

PDF

359.7 KB Created: 2015-08-20 08:51:23 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: a85d92b78fabcdd2f211f7a24924425c SHA-1: 981cec4192124730e3729555fdc285a354ee5f4a SHA-256: f2b5d9c5b89ba39aae3fbf76963fd715a9cf3158cf8c178a3ac484a0d7c798b5
90 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and contains a link to a known malicious redirector. This indicates the document is likely part of a phishing or malware distribution campaign. No scripts were extracted, and the document body was heavily truncated and unreadable, preventing further analysis of the specific lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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+%D0%B2%D0%B7%D0%BB%D0%BE%D0%BC%D0%B0%D0%BD%D0%BD%D1%83%D1%8E+%D0%B2%D0%B5%D1%80%D1%81%D0%B8%D1%8E+%D0%B1%D0%B8%D1%82%D0%B2%D0%B0+%D0%B7%D0%B0%D0%BC%D0%BA%D0%BE%D0%B2&charset=utf-8
    • http://img1.liveinternet.ru/images/attach/c/6//4639/4639342_seks_s_sobakoy_skachat_torrent.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4639/4639113_skachat_besplatno_na_telefon_samsung_lya_fler_flesh_pleer.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4640/4640147_skachat_vk_mobilnaya_versiya.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005605f.bin
d7392360891e1a3290ab3bcf8bd987800f2d039beed55940b3bcfd12fa8fd34d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5605F 8204 bytes
font_01_sfnt_off000577f4.bin
3c2029885ab18314098fed267b8eafdbf95e619cd83fcab3bdab8e5a372c2122		 pdf-font-stream PDF embedded font (sfnt) at offset 0x577F4 12260 bytes

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