Malicious PDF — malware analysis report

Static analysis result for SHA-256 827aee425831d31c…

MALICIOUS

PDF

282.8 KB Created: 2015-08-29 11:38:02 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6) First seen: 2021-11-24
MD5: 930123fca0b91986c08ed10c20cd2f78 SHA-1: 53f8dd89eadb531a6bc6d173500b9942e533578a SHA-256: 827aee425831d31cbb0acdd6825cd3758837958a0d73fae87c132a1c359abab3
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. The ML classifier also flagged the document as malicious. While no scripts were directly extracted, the presence of a malicious URL is a strong indicator of malicious intent, likely for phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7019

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%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%BE%D1%80%D0%BD%D0%B0%D0%BC%D0%B5%D0%BD%D1%82%D1%8B&charset=utf-8 In PDF document text
    • http://img0.liveinternet.ru/images/attach/c/7//4830/4830614_artisman__control__center_.pdfIn PDF document text
    • http://img0.liveinternet.ru/images/attach/c/7//4830/4830282_skachat__igru__gotika_.pdfIn PDF document text
    • http://img0.liveinternet.ru/images/attach/c/7//4830/4830430_novaya__proshivka__dlya_.pdfIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000429b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x429B6 7740 bytes
SHA-256: 377983b88b6f383a1ddd9610b2584e026bed415a96485fbde95b883ce0cc24ac
font_01_sfnt_off00043fe0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x43FE0 14824 bytes
SHA-256: 88827b1fab59f2dc450f234580c18235a338fbf528d7840c7ccd34fe94c68799

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