Malicious PDF — malware analysis report

Static analysis result for SHA-256 ac65d711654895cf…

MALICIOUS

PDF

340.0 KB Created: 2015-08-29 12:04:04 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6) First seen: 2021-07-07
MD5: 9f764035e78b5b7509d43012ac5c41c1 SHA-1: c1880bd0288797a2e8122ccfb48da6251b6c6dc1 SHA-256: ac65d711654895cf060e6ab7cdca77484ba2a9a640dc0750598bc46d66d02f40
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 as malicious. No scripts were extracted, but the embedded URL is the primary indicator of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9979

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+%D1%88%D1%80%D0%B8%D1%84%D1%82+rosa+marena&charset=utf-8 In PDF document text
    • http://img0.liveinternet.ru/images/attach/c/7//4830/4830467_server__maynkraft__152_.pdfIn PDF document text
    • http://img0.liveinternet.ru/images/attach/c/7//4830/4830959_ostroumie_.pdfIn PDF document text
    • http://img1.liveinternet.ru/images/attach/c/7//4831/4831044_kak__zaregistrirovatsya__na_.pdfIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005060f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5060F 10272 bytes
SHA-256: 996479e14f5472a4bb1af4e5bd28311db6b8006ed50f110d0108e3ce5294cb6a
font_01_sfnt_off000522b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x522B7 14840 bytes
SHA-256: 762c684e1c452009785e72c4f806feb10785d33e3a4e1da7012c80a40f8a61cf

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