Malicious PDF — malware analysis report

Static analysis result for SHA-256 b52636ca1af8aee0…

MALICIOUS

PDF

352.6 KB Created: 2015-08-29 13:16:06 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6) First seen: 2021-09-23
MD5: b3061f8f278d2cb2f0fdabf01e9cdd02 SHA-1: fa41b067f29b580cd3844982c63d9375a084f982 SHA-256: b52636ca1af8aee035418cf5e119e444be8e92d8a8a780681d095453cbf3b6eb
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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%B7%D0%B2%D1%83%D0%BA%D0%B8+%D1%83%D1%82%D0%BA%D0%B8+%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//4830/4830704_otcht__za__pervoe_.pdfIn PDF document text
    • http://img1.liveinternet.ru/images/attach/c/7//4831/4831733_mihail__krug__albom_.pdfIn PDF document text
    • http://img0.liveinternet.ru/images/attach/c/7//4830/4830401_prilozhenie__ne__udalos_.pdfIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00053f25.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x53F25 7780 bytes
SHA-256: 2200f27d3d9fb231cf5d0f8d8edf0ddc12c130693d15860ab27dc194b54fb501
font_01_sfnt_off000555e7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x555E7 14320 bytes
SHA-256: 60c8ffc5ebf2174fbdce192e1ece851c62f4d46f8fbf3476c64760bcb71f9817

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