Malicious PDF — malware analysis report

Static analysis result for SHA-256 170f751a868e7ef4…

MALICIOUS

PDF

365.7 KB Created: 2015-08-23 15:13:13 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6) First seen: 2021-09-27
MD5: faed2ef804eeef53b9acea84da29ac73 SHA-1: b2d85bff0215138a3ef9dc0465646bf56484dea0 SHA-256: 170f751a868e7ef4843d6b8dbca3b3e5ce64a06effd9f25ed54a919f1261e83c
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. No scripts were extracted, but the presence of a malicious URL is sufficient evidence for this assessment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9955

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%A1%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%BA%D0%B0%D1%80%D1%82%D1%83+%D0%BA%D1%80%D1%8B%D1%81%D0%B8%D0%BD%D0%B0%D1%8F+%D0%B6%D0%B8%D0%B7%D0%BD%D1%8C+%D0%B4%D0%BB%D1%8F+%D0%BC%D0%B0%D0%B9%D0%BD%D0%BA%D1%80%D0%B0%D1%84%D1%82+152&charset=utf-8 In PDF document text
    • http://img0.liveinternet.ru/images/attach/c/6//4684/4684884_avtoliteratura_skachat_besplatno_cherez_torrent.pdfIn PDF document text
    • http://img1.liveinternet.ru/images/attach/c/6//4683/4683698_lada_granta_zavisla_shtatnaya_magnitola.pdfIn PDF document text
    • http://img1.liveinternet.ru/images/attach/c/6//4683/4683594_celnuye_znachki_klanov.pdfIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00056ed5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x56ED5 10268 bytes
SHA-256: 60cba20e733fc9f946abbc18fc064f3405102d670e3a5ba29ce44e9aa7f7b348
font_01_sfnt_off00058c65.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x58C65 13304 bytes
SHA-256: e1a00ebfd8dc399af9a182d712752a3da96eb6c1da23cadd2f8fe85872418010