Malicious PDF — malware analysis report

Static analysis result for SHA-256 2272564987c23fe8…

MALICIOUS

PDF

368.4 KB Created: 2015-08-25 23:27:31 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6) First seen: 2021-06-17
MD5: e446fef9bb79a64a4a3109851bfc4704 SHA-1: 8893ac8f0965ac3744fb50f17232280664ffec6f SHA-256: 2272564987c23fe8ab5a709e4fed93d6c2c905ba9943b36b2ea971d084a35315
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains a link to a known malicious redirector, indicating an attempt to lure the user to a harmful site. The ML classifier also flagged this PDF with high confidence. No scripts were extracted, but the presence of a malicious URL is sufficient evidence of a phishing or redirection attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9946

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=major+league+baseball+2k11+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D1%87%D0%B5%D1%80%D0%B5%D0%B7+%D1%82%D0%BE%D1%80%D1%80%D0%B5%D0%BD%D1%82&charset=utf-8 In PDF document text
    • http://img1.liveinternet.ru/images/attach/c/7//4741/4741123_skachat__drayver__vay_.pdfIn PDF document text
    • http://img0.liveinternet.ru/images/attach/c/7//4740/4740978_skachat__besplatno__shashki_.pdfIn PDF document text
    • http://img0.liveinternet.ru/images/attach/c/7//4740/4740849_pocketbook__iq__701_.pdfIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005774f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5774F 9544 bytes
SHA-256: c748a5a6e13f157cdd5e7d290c16d30314d4d997110b18cb0d9b6205a999f238
font_01_sfnt_off00059214.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x59214 15640 bytes
SHA-256: 41ec7d29320e3309d94ddeacb3921f36ac068eed016d8e9eb15335e8ba866fa6

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