Malicious PDF — malware analysis report

Static analysis result for SHA-256 a475681e63d5520c…

MALICIOUS

PDF

365.2 KB Created: 2015-08-20 07:15:19 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6) First seen: 2021-10-01
MD5: d9cabfde04030f3e3f158089b202ceca SHA-1: c07e26c1b3bafcfc41bbb6f99a0841d24276bd91 SHA-256: a475681e63d5520ce53436b51f8cc4cbc1e8863dceb0cae9ae5c642eecb3fd9b
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 0.9952

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%BF%D1%80%D0%BE%D0%B3%D1%80%D0%B0%D0%BC%D0%BC%D0%B0+%D0%BA%D0%BB%D0%B8%D0%BD%D0%BE%D0%BA+%D0%B4%D0%BB%D1%8F+%D0%BB%D0%B5%D1%87%D0%B5%D0%BD%D0%B8%D1%8F+%D0%BA%D0%BE%D1%81%D0%BE%D0%B3%D0%BB%D0%B0%D0%B7%D0%B8%D1%8F+%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/6//4629/4629135_skachat_sbornik_chitov_na_tanki_onlayn.pdfIn PDF document text
    • http://img0.liveinternet.ru/images/attach/c/6//4626/4626850_receptuy_na_latinskom_yazuyke_po_farmakologii_primeruy.pdfIn PDF document text
    • http://img1.liveinternet.ru/images/attach/c/6//4627/4627960_harakteristika_studenta_s_mesta_praktiki_v_kafe.pdfIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00057032.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x57032 8096 bytes
SHA-256: 48e31c8171fda2bac1ce326d81ce73b063b51bfe53857c46bb28dfaac7cff37e
font_01_sfnt_off000587b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x587B2 14180 bytes
SHA-256: 151230f7e026b30aea5b85de2328f7c2ca78670b15bc267d1c480059762a13e6

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