Malicious PDF — malware analysis report

Static analysis result for SHA-256 f3b646d4bd1c21f0…

MALICIOUS

PDF

362.6 KB Created: 2015-08-29 01:51:55 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6) First seen: 2021-10-24
MD5: 57ccf24d287be774a381b29dd1f54084 SHA-1: 5dec84b7fee92f4734ea7da8b916e190deeff05f SHA-256: f3b646d4bd1c21f039da21c6894dbe1a9039b4f017c72af9ef88e2f0204ced66
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 PDF structure and the malicious link strongly suggest a phishing or malware delivery attempt. The ML classifier also flagged this PDF with high confidence.

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%B2%D0%B0%D0%BB%D0%B5%D1%80%D0%B8%D0%B9+%D0%BC%D0%B5%D0%BB%D0%B0%D0%B4%D0%B7%D0%B5+%D1%81%D0%B2%D0%BE%D0%B1%D0%BE%D0%B4%D0%BD%D1%8B%D0%B9+%D0%BF%D0%BE%D0%BB%D0%B5%D1%82+%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 In PDF document text
    • http://img0.liveinternet.ru/images/attach/c/7//4818/4818424_skachat__maynkraft__s_.pdfIn PDF document text
    • http://img0.liveinternet.ru/images/attach/c/7//4818/4818451_servera__na__maynkraft_.pdfIn PDF document text
    • http://img1.liveinternet.ru/images/attach/c/7//4817/4817609_adobe__photoshop__cs3_.pdfIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00056007.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x56007 10348 bytes
SHA-256: b7f2c211dc478b432aeae3d26ecae3cae70e7611bf32a6eb14a72b3543415f83
font_01_sfnt_off00057cf0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x57CF0 15072 bytes
SHA-256: d0e15d7103587cac706a42047d46815cdf77d8f3bbd4d798fb38f0665b566939

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