Malicious PDF — malware analysis report

Static analysis result for SHA-256 35a945fd7c7820ee…

MALICIOUS

PDF

288.2 KB Created: 2015-08-24 00:06:57 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6) First seen: 2021-11-25
MD5: ea8892612844b4d01b5e92d88d20a025 SHA-1: 648f55242efbe691da681e4f42f662a79eba7c92 SHA-256: 35a945fd7c7820ee4c608dc01f77fdc687f6f4b789cbbc4494d368cb01a6e1f0
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link to a known malicious redirector, botcraftman.ru. This indicates an attempt to lure the user to a malicious site, likely for further exploitation or credential harvesting. While no scripts were explicitly extracted, the heuristic firing suggests the PDF itself is designed to facilitate this redirection.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6743

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%84%D0%BB%D0%B5%D1%88%D1%82%D1%83%D0%BB&charset=utf-8 In PDF document text
    • http://img1.liveinternet.ru/images/attach/c/6//4693/4693996_skachat__kartu__skayblok_.pdfIn PDF document text
    • http://img1.liveinternet.ru/images/attach/c/6//4693/4693492_pischa__bogov__vse_.pdfIn PDF document text
    • http://img1.liveinternet.ru/images/attach/c/6//4693/4693929_ajax_.pdfIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000445cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x445CD 6600 bytes
SHA-256: 62b512c853fbdb9d54a77fe6b5e85de44f1ee3275391f50037e3199f9366af3f
font_01_sfnt_off000458de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x458DE 13008 bytes
SHA-256: 03b2fda18033356d440cef15237daa7b1e57811ba5f0f952c265a643cd11d8f6