Malicious PDF — malware analysis report

Static analysis result for SHA-256 1779ea9a4db95fda…

MALICIOUS

PDF

364.0 KB Created: 2015-08-28 11:30:22 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 2a605ac555e1ff5a56229e192ee40c0d SHA-1: 80b159816f93e93b152e709c37ff947dd9708f3e SHA-256: 1779ea9a4db95fda1452a8addd5570b66cadea9ba33fb0a76fbfc0d0839b9082
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains an embedded URL that is flagged as malicious and redirects to a suspicious domain. The ML classifier also strongly indicated maliciousness. This suggests the document is designed to lure users to a compromised site, likely for phishing or to download further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9979

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=%D0%B4%D0%BE%D0%B3%D0%BE%D0%B2%D0%BE%D1%80+%D0%BD%D0%B0%D0%B9%D0%BC%D0%B0+%D0%B6%D0%B8%D0%BB%D0%BE%D0%B3%D0%BE+%D0%BF%D0%BE%D0%BC%D0%B5%D1%89%D0%B5%D0%BD%D0%B8%D1%8F+%D0%BE%D0%B1%D1%80%D0%B0%D0%B7%D0%B5%D1%86+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/7//4802/4802362_imperiya__angelov__bernard_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4802/4802371_shema__ultrazvukovogo_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4802/4802358_kak__vosstanovit__udalennuye_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00056da1.bin
1ad98490bdad79e1fec00c23e56742d768737f911888a3f440787463698f350f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x56DA1 8344 bytes
font_01_sfnt_off000585b4.bin
a822c85df5d98da2e629936a03e94f9d90f50b2da6d5fa9e3c72894a34531711		 pdf-font-stream PDF embedded font (sfnt) at offset 0x585B4 13452 bytes

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