Malicious PDF — malware analysis report

Static analysis result for SHA-256 756016a59ab81c77…

MALICIOUS

PDF

352.2 KB Created: 2015-08-29 11:04:53 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6) First seen: 2021-07-13
MD5: ad0d4a38a68955ae7f03fe97c8df6990 SHA-1: 370e1268e8f1cd9ecc572ce8c2acc7c2d2c0a308 SHA-256: 756016a59ab81c7767b7d94dcae47ec1c3233780ae7b948e1447b12f624a2e8b
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 this PDF with high confidence. While no scripts were extracted, the presence of a malicious URL is a strong indicator of malicious intent, likely for phishing or malware distribution.

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%BE%D0%B1%D1%80%D0%B0%D0%B7%D0%B5%D1%86+%D0%B7%D0%B0%D0%BF%D0%BE%D0%BB%D0%BD%D0%B5%D0%BD%D0%B8%D1%8F+%D1%81%D0%BF%D1%80%D0%B0%D0%B2%D0%BA%D0%B8+%D0%BE+%D0%B4%D0%BE%D1%85%D0%BE%D0%B4%D0%B0%D1%85+%D0%B3%D0%BE%D1%81%D1%81%D0%BB%D1%83%D0%B6%D0%B0%D1%89%D0%B8%D1%85&charset=utf-8 In PDF document text
    • http://img1.liveinternet.ru/images/attach/c/7//4829/4829910_unturned__30_.pdfIn PDF document text
    • http://img1.liveinternet.ru/images/attach/c/7//4829/4829835_kniga__o__lune_.pdfIn PDF document text
    • http://img1.liveinternet.ru/images/attach/c/7//4829/4829849_cs__16_.pdfIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00053835.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x53835 8740 bytes
SHA-256: c10a4f9049576afa645f0011e06bddf87469dde0fbdd1a87bf68bba7352fbf3a
font_01_sfnt_off00055203.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x55203 15060 bytes
SHA-256: f3cb02e5d494368288d3155e7ec895dbf56f4b95c2b548511221309bb92cbdd9

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