Malicious PDF — malware analysis report

Static analysis result for SHA-256 7e4644e122d88071…

MALICIOUS

PDF

363.2 KB Created: 2015-08-24 23:30:46 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 4ed296f48bb49c6c43f64d46f9cdb196 SHA-1: e59ae7ac1c8aa93b6d3e5b6e54eb068bf829ac31 SHA-256: 7e4644e122d88071f5b2337b3d1cae59ec62b9c2b8b554b706ceb3634e796af0
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. While no scripts were explicitly extracted, the presence of a malicious URL suggests the document is designed to lure the user 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%B1%D0%B0%D1%80%D0%B0%D0%B1%D0%BE%D1%88%D0%BA%D0%B8%D0%BD%D0%B0+%D1%81%D0%BE%D0%BB%D1%8C%D1%84%D0%B5%D0%B4%D0%B6%D0%B8%D0%BE+3+%D0%BA%D0%BB%D0%B0%D1%81%D1%81+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%B1%D0%B5%D1%81%D0%BF%D0%BB%D0%B0%D1%82%D0%BD%D0%BE&charset=utf-8
    • http://img1.liveinternet.ru/images/attach/c/6//4711/4711941_skachat__besplatno__svatuy_.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4693/4693575_instagram__skachat__na_.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4706/4706843_skachat__igruy__pro_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000561bf.bin
c4c44c0a23e978d1bbbce3125994266c0eb57157c42357b2ad256943b4a35c2c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x561BF 10376 bytes
font_01_sfnt_off00057e9d.bin
48bf54f7a1aaa0f8aba81f9864cfdb8274b8801237102ce56526b4345271ffe3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x57E9D 14700 bytes

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