Malicious PDF — malware analysis report

Static analysis result for SHA-256 b9c2a73196d148b4…

MALICIOUS

PDF

346.9 KB Created: 2015-08-29 01:22:15 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6) First seen: 2021-09-24
MD5: 23588c2a47ca78e1cf2c369d3ff774cc SHA-1: c68a5a6fb5c79d3454f18f556e628447e133e30f SHA-256: b9c2a73196d148b4bd53d9b660679e64e12f1ed89f34c0e18b15d529f898965a
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%BC%D0%B5%D0%B1%D0%B5%D0%BB%D1%8C+%D0%B4%D0%BB%D1%8F+3d+max+%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://img1.liveinternet.ru/images/attach/c/7//4817/4817662_skachat__knigu__do_.pdfIn PDF document text
    • http://img1.liveinternet.ru/images/attach/c/7//4817/4817952_tablica__nepravilnuyh__glagolov_.pdfIn PDF document text
    • http://img1.liveinternet.ru/images/attach/c/7//4817/4817766_skachat__besplatno__oboi_.pdfIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00052830.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x52830 8356 bytes
SHA-256: 8eb873af644a625fd511b5bd8f2ea6bf1964bd14fe3a534b9135166974051760
font_01_sfnt_off00054009.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x54009 14036 bytes
SHA-256: 5e69b60c86e1eabed9b4bdc93e2eabecc4c27af38d83a1b122fd8519b428684c