Malicious PDF — malware analysis report

Static analysis result for SHA-256 f56411815eb0ae0d…

MALICIOUS

PDF

366.7 KB Created: 2015-08-20 08:58:49 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: f08d4bc701fec8b676227a7580cf3462 SHA-1: 87198b28d7258375d9cdfc1f774262a449da5cf6 SHA-256: f56411815eb0ae0df52eb2c75dd2e5dee2552228dd15b923d851a81d3d73ba60
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 embedded URL `http://botcraftman.ru/...` is identified as a malicious redirector. The ML classifier also assigned a high probability of maliciousness. No scripts were extracted, and the document body was truncated and unreadable, preventing further analysis of the lure content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9943

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%BF%D1%80%D0%BE%D1%81%D1%82%D0%BE%D0%BA%D0%B2%D0%B0%D1%88%D0%B8%D0%BD%D0%BE+%D1%81+%D0%B3%D0%BE%D0%B1%D0%BB%D0%B8%D0%BD%D1%81%D0%BA%D0%B8%D0%BC+%D0%BF%D0%B5%D1%80%D0%B5%D0%B2%D0%BE%D0%B4%D0%BE%D0%BC+%D1%87%D0%B5%D1%80%D0%B5%D0%B7+%D1%82%D0%BE%D1%80%D1%80%D0%B5%D0%BD%D1%82&charset=utf-8
    • http://img1.liveinternet.ru/images/attach/c/6//4639/4639923_putevoditeli_skachat_besplatno.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4640/4640134_skachat_obmani_menya_vse_sezonuy_cherez_torrent.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4639/4639687_maketuy_obyavleniy_dlya_raskleyki.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00057412.bin
d0cfa2d65ec051dd9f671a2da16c9ca8c36b33588a29387ff460b66510fe5107		 pdf-font-stream PDF embedded font (sfnt) at offset 0x57412 7936 bytes
font_01_sfnt_off00058b5a.bin
37a6a83533be394fc4dc1159699d00fb366c0b5ea99389362ca596126f8dccfb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x58B5A 14892 bytes

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