Malicious PDF — malware analysis report

Static analysis result for SHA-256 78d62057281ea920…

MALICIOUS

PDF

375.7 KB Created: 2015-08-29 16:13:46 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6) First seen: 2021-09-24
MD5: ba75b3144d79dbf218f32168f22ec14a SHA-1: ddabb22ee6f1d9d64b109fc2afb132c16d32cf4b SHA-256: 78d62057281ea920347d7544bcf26a870ec25105b00e9717c6b810160a8c81ce
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 0.9974

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%D1%82%D0%BE+%D0%BB%D0%B5%D1%82+%D0%BE%D0%B4%D0%B8%D0%BD%D0%BE%D1%87%D0%B5%D1%81%D1%82%D0%B2%D0%B0+%D0%BA%D0%BD%D0%B8%D0%B3%D0%B0+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C&charset=utf-8 In PDF document text
    • http://img1.liveinternet.ru/images/attach/c/7//4835/4835321_blok__ops__skachat_.pdfIn PDF document text
    • http://img0.liveinternet.ru/images/attach/c/7//4830/4830040_skachat__yandeks__bar_.pdfIn PDF document text
    • http://img0.liveinternet.ru/images/attach/c/7//4832/4832347_kak__perekinut__kontaktuy_.pdfIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00059bf6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x59BF6 7448 bytes
SHA-256: 1fc790481d3936db7cb7a523c8edf82c16c9ab31376e45197bfc8a78e5a8e694
font_01_sfnt_off0005b1bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B1BC 14128 bytes
SHA-256: 0e515683d13f5781da5fc01690f391c6577634b78b0df52a89df2041adef73b1

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