Malicious PDF — malware analysis report

Static analysis result for SHA-256 8e62bb71967b6c15…

MALICIOUS

PDF

300.7 KB Created: 2015-08-24 01:42:04 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6) First seen: 2021-10-24
MD5: 76292ee8fcd6577495e4750de56304c6 SHA-1: 5da8da93b1ed49fdd6d7dcbda9fe7433664d9946 SHA-256: 8e62bb71967b6c15f9c8c02165df81a20c0e11f38f1c1e3cdaf0cf57654688d9
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a critical heuristic firing indicating a malicious redirector link. The embedded URL points to 'botcraftman.ru', which is flagged as malicious. While no scripts were explicitly extracted, the nature of the PDF and the redirector link suggest an attempt to lure the user to a malicious site, likely for further exploitation or phishing.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7288

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%85%D0%B5%D0%BC%D0%B0+%D1%864360&charset=utf-8 In PDF document text
    • http://img1.liveinternet.ru/images/attach/c/6//4695/4695038_chelkastuye__parni__14_.pdfIn PDF document text
    • http://img1.liveinternet.ru/images/attach/c/6//4693/4693539_obrazec__zapolneniya__passazhirskoy_.pdfIn PDF document text
    • http://img1.liveinternet.ru/images/attach/c/6//4695/4695014_pin__koduy__dlya_.pdfIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00047111.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x47111 8944 bytes
SHA-256: 955b3bd08b5913e726f6cf7f7bd773eeac65616006fa7ebac9b36598aa5463bd
font_01_sfnt_off00048af5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x48AF5 12704 bytes
SHA-256: 17fed7209156bdf690ab551a572b4142385549a84e636e0906e8635ea87516a5

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