Malicious PDF — malware analysis report

Static analysis result for SHA-256 fe3cf1fb7d32b33a…

MALICIOUS

PDF

293.2 KB Created: 2015-08-29 11:05:35 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6) First seen: 2021-11-23
MD5: 8831cd258f7b95a27de193cf3c3cd6a0 SHA-1: c23189bb51a57cdf1b85411cf55282fe5c20f06e SHA-256: fe3cf1fb7d32b33a1eaed963aa9386e3cf4ef47579146ea691b667f101f812f4
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file was flagged as malicious due to a link pointing to known malicious redirector infrastructure. The embedded URL, http://botcraftman.ru/, is identified as a malicious redirector, suggesting the document is intended to lure users to a harmful site. No scripts were extracted, but the presence of a malicious link is sufficient evidence for this classification.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6955

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%BA%D0%BB%D1%8E%D1%87+%D0%BD%D0%B0+%D0%B3%D1%82%D0%B0+4&charset=utf-8 In PDF document text
    • http://img1.liveinternet.ru/images/attach/c/7//4829/4829957_pelageya__i__chernuyy_.pdfIn PDF document text
    • http://img1.liveinternet.ru/images/attach/c/7//4829/4829873_drayvera__dlya__noutbuka_.pdfIn PDF document text
    • http://img1.liveinternet.ru/images/attach/c/7//4829/4829926_yekzamen__na__3_.pdfIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00044e4f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x44E4F 7712 bytes
SHA-256: a021b8b6f6c08d48e11a3e61655cb20559fc9c3f0adfc88c7c24545187d0fe14
font_01_sfnt_off000464b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x464B2 15660 bytes
SHA-256: 22124d87372a8baa69c28c631bb55b18b0e61b6a5b1823f8d24be5b77316ba14

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