Malicious PDF — malware analysis report

Static analysis result for SHA-256 afcd332b6e104337…

MALICIOUS

PDF

376.0 KB Created: 2015-08-19 19:06:32 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6) First seen: 2021-10-11
MD5: be9fa9934a7ef9d97c15a51e8fb2bbeb SHA-1: b34d890aeb51758bca6acb82b174e6ff0ebaf000 SHA-256: afcd332b6e104337aaba21b9b7146a2a7b60bc1b56e6ba389e6662a63c23cfce
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link to a known malicious redirector infrastructure, indicating a malicious intent to lead 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 of a malicious redirector attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9946

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%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%BC%D1%803+%D1%81%D0%B1%D0%BE%D1%80%D0%BD%D0%B8%D0%BA%D0%B8+%D0%BD%D0%BE%D0%B2%D0%B8%D0%BD%D0%BA%D0%B8+2013+%D0%B1%D0%B5%D1%81%D0%BF%D0%BB%D0%B0%D1%82%D0%BD%D0%BE+%D1%87%D0%B5%D1%80%D0%B5%D0%B7+%D1%82%D0%BE%D1%80%D1%80%D0%B5%D0%BD%D1%82&charset=utf-8 In PDF document text
    • http://img0.liveinternet.ru/images/attach/c/6//4626/4626960_notuy_sovremennuyh_pesen_dlya_sintezatora.pdfIn PDF document text
    • http://img1.liveinternet.ru/images/attach/c/6//4627/4627299_musuylman_korganuy_skachat.pdfIn PDF document text
    • http://img0.liveinternet.ru/images/attach/c/6//4628/4628404_devchata_v_cvete_skachat_torrent.pdfIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000598ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x598AC 9004 bytes
SHA-256: 4b6d70c6c424cfb49c671ae0e5f814ea8ac70b2ce5566896d1ab585b4203171d
font_01_sfnt_off0005b326.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B326 14180 bytes
SHA-256: 44c23d90bb2501fc01e3b89f953d531dadc3519bef132eac3a338dda2802fd15

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