Malicious PDF — malware analysis report

Static analysis result for SHA-256 6c71e26cfffb3cc3…

MALICIOUS

PDF

354.3 KB Created: 2015-08-24 03:18:59 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6) First seen: 2021-11-23
MD5: 4233dad007f876afe01046f0adc1b340 SHA-1: 954f1396c0ee88e7ce27812b31804cedb787da5e SHA-256: 6c71e26cfffb3cc394abc0de30ed5cf40c40f408f3c552152c4565e0ea219b48
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The sample is a PDF document flagged by multiple heuristics as malicious, including a critical finding for a link to known malicious redirector infrastructure. The embedded URL points to 'botcraftman.ru', which is identified as a malicious redirector. This suggests the document is designed to lure users to a harmful website, likely for phishing or malware delivery.

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=%D0%BF%D1%80%D0%BE%D0%B3%D1%80%D0%B0%D0%BC%D0%BC%D0%B0+%D1%80%D0%B0%D1%81%D0%BF%D0%BE%D0%B7%D0%BD%D0%B0%D0%B2%D0%B0%D0%BD%D0%B8%D1%8F+%D1%80%D0%B5%D1%87%D0%B8+%D0%B4%D0%BB%D1%8F+%D0%B0%D0%BD%D0%B4%D1%80%D0%BE%D0%B8%D0%B4&charset=utf-8 In PDF document text
    • http://img1.liveinternet.ru/images/attach/c/6//4695/4695039_lightroom__56__skachat_.pdfIn PDF document text
    • http://img1.liveinternet.ru/images/attach/c/6//4695/4695839_corel__draw__10_.pdfIn PDF document text
    • http://img1.liveinternet.ru/images/attach/c/6//4697/4697639_skachat__lenovo_.pdfIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000544e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x544E8 7648 bytes
SHA-256: ddbf89ccd6d2256f5aa0b0dc1da10d8421cfee804c2ae76d57b13d7dfce138c4
font_01_sfnt_off00055b49.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x55B49 15076 bytes
SHA-256: 93e9f4c5a8a64575116f5c6049819f8ecdb712c1393f3ed83841e9844d49c291

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