Malicious PDF — malware analysis report

Static analysis result for SHA-256 782c09fbf74b2e50…

MALICIOUS

PDF

353.7 KB Created: 2015-08-21 09:23:12 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: b4772d3b8bbf38d9c766bbc5857b883e SHA-1: 675a4469af12819d6e9cc78471a3a93f6cb45c5c SHA-256: 782c09fbf74b2e5021ec42286f10cbc4b5225e50778274bb0298a829728cd8dd
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link to a known malicious redirector, botcraftman.ru, which is a strong indicator of malicious intent. The ML classifier also flagged this PDF with high confidence. The embedded URL is likely used to lure the user to a site that hosts further malicious content or phishing pages.

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=euro+truck+simulator+2+%D0%BA%D0%BE%D0%B4+%D0%B0%D0%BA%D1%82%D0%B8%D0%B2%D0%B0%D1%86%D0%B8%D0%B8&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/6//4654/4654724_ud608_shema_vklyucheniya.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4654/4654769_1s_dokumentooborot_8_skachat_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4654/4654765_buyt_neotrazimoy_bryedli_bei.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00053d2a.bin
9b88e80f5bf51a0d1f8d822873d5a7e34e35db4ab6f2b7602d625d44bdea14c9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x53D2A 9404 bytes
font_01_sfnt_off0005575d.bin
24403efda984f21e877b26c4f99720582154c167f74a1c8fcea3479359c3cfdd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5575D 15576 bytes

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