Malicious PDF — malware analysis report

Static analysis result for SHA-256 01481acb47bb2b03…

MALICIOUS

PDF

356.5 KB Created: 2015-08-27 09:50:37 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 6b1babb4a42d3cfa35efd42376d07cde SHA-1: 71e44bd70ab96a8cf7f80cd99d9cd285a0199628 SHA-256: 01481acb47bb2b03da21295eeec077565dd072364c11430d6d03701583c72b5b
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 assigned a high probability of maliciousness. The embedded URL, http://botcraftman.ru/..., is the primary indicator of malicious intent, likely serving as a gateway to a phishing or malware distribution site. No scripts were extracted, and the document body was unreadable, but the malicious link is sufficient evidence.

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=%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%BF%D1%80%D0%BE%D0%B3%D1%80%D0%B0%D0%BC%D0%BC%D1%83+%D0%B4%D0%BB%D1%8F+%D0%BE%D1%82%D0%BA%D1%80%D1%8B%D1%82%D0%B8%D1%8F+%D1%84%D0%B0%D0%B9%D0%BB%D0%BE%D0%B2+tif&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/7//4772/4772028_gadkie__amerikancuy__2_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4772/4772060_skayrim__skachat__torrent_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4771/4771918_navitel__85__dlya_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000547b2.bin
7d8898f954c2ec29cff959b04801f3249c9cf225c29f9f8b68d0f7380fe346d3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x547B2 8892 bytes
font_01_sfnt_off0005616c.bin
c273b95b4dc2cc112ea214a585f3cdc0f876946939a97d1c821d26a18e4f16f7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5616C 16060 bytes

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