Malicious PDF — malware analysis report

Static analysis result for SHA-256 269ae30b929a08bc…

MALICIOUS

PDF

353.5 KB Created: 2015-08-28 00:10:27 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: a184bc099066956032329eaa9f6d9eb6 SHA-1: 42c9df417d58fa424f0c7acba51e87d7f4c9c94a SHA-256: 269ae30b929a08bcc447f49d4d21dcccdb55a4c546461dd305c65f1c684d032d
90 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, botcraftman.ru. This indicates the document is designed to lure users to a harmful website. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted, but the embedded URL is sufficient evidence of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9897

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=sims+2+%D0%BF%D0%B8%D1%82%D0%BE%D0%BC%D1%86%D1%8B+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D1%82%D0%BE%D1%80%D1%80%D0%B5%D0%BD%D1%82&charset=utf-8
    • http://img1.liveinternet.ru/images/attach/c/7//4787/4787830_svedeniya__o__vidah_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4787/4787803_skachat__muzuyku__torrentom_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4788/4788024_knigi__po__psihologii_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000541eb.bin
39b1a4415e5edb2a311d09495209f019eb81d9433f58fc82adb3bb0ebd934cd7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x541EB 9136 bytes
font_01_sfnt_off00055b71.bin
9fe8f620dba1dc600c64098cd48b8071d648b277a9efd5e20d8c3a9b02a15608		 pdf-font-stream PDF embedded font (sfnt) at offset 0x55B71 13584 bytes

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