Malicious PDF — malware analysis report

Static analysis result for SHA-256 12082702c2b78e6f…

MALICIOUS

PDF

379.2 KB Created: 2015-08-25 09:17:44 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 2c2eed75d62c1fa98830338ad2437a85 SHA-1: e17fae53f47caeb8869c870ca939a27eba1f6126 SHA-256: 12082702c2b78e6f91f90c94f574a3d87e0064a8316bb7af36f52848dbbf9bc7
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link to a known malicious redirector, indicating an attempt to lure the user to a harmful site. While no scripts were explicitly extracted, the presence of embedded URLs and the ML classifier's high confidence suggest malicious intent. The document body is heavily obfuscated and unreadable, preventing further analysis of its specific 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%D1%82%D0%B8%D0%B2%D0%B5%D0%BD+%D0%BA%D0%B8%D0%BD%D0%B3+%D0%BA%D0%BE%D0%BB%D0%B4%D1%83%D0%BD+%D0%B8+%D0%BA%D1%80%D0%B8%D1%81%D1%82%D0%B0%D0%BB%D0%BB+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+fb2&charset=utf-8
    • http://img1.liveinternet.ru/images/attach/c/6//4725/4725252_multiki__s__matom_.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4725/4725542_zagruzochnaya__fleshka__windows_.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4725/4725670_alcohol__120__202_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005a603.bin
f3527e010d69d1e4a0289b451a99803ff45e0d043d0ccd155234da585aef4118		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5A603 7576 bytes
font_01_sfnt_off0005bc41.bin
21ee6347f77fcf52bdfcda551640fde47277db5b5e1df9ba5f75824de855c3e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5BC41 15792 bytes

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