Malicious PDF — malware analysis report

Static analysis result for SHA-256 84ced0f9ae34c8af…

MALICIOUS

PDF

355.0 KB Created: 2015-08-29 13:14:47 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6) First seen: 2021-11-24
MD5: ee0f6873104128782e360b108e6e57e3 SHA-1: 6eead73c8a74ceafb3c212b3b7430557d09f6898 SHA-256: 84ced0f9ae34c8afc8b29264ae01da2e51b45316111c6c19d78db6d4c29329c6
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains an embedded link to a known malicious redirector, http://botcraftman.ru/, which is a strong indicator of malicious intent. The ML classifier also flagged this PDF with high confidence. No scripts were extracted, but the presence of the malicious URL suggests the document is designed to lure the user to a compromised site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9800

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%BC%D0%BE%D1%82%D1%80%D0%B5%D1%82%D1%8C+%D0%BC%D0%B0%D0%B9%D0%BD+%D0%BA%D1%80%D0%B0%D1%84%D1%82+%D0%BF%D1%80%D0%BE%D1%85%D0%BE%D0%B6%D0%B4%D0%B5%D0%BD%D0%B8%D0%B5+%D0%BA%D0%B0%D1%80%D1%82+%D1%81+%D0%BC%D0%B8%D1%81%D1%82%D0%B8%D0%BA%D0%BE%D0%BC+%D0%B8+%D0%BB%D0%B0%D0%B3%D0%B5%D1%80%D1%8F%D0%BC+9+%D1%81%D0%B5%D1%80%D0%B8%D1%8F&charset=utf-8 In PDF document text
    • http://img0.liveinternet.ru/images/attach/c/7//4830/4830963_pro11__msi__office_.pdfIn PDF document text
    • http://img0.liveinternet.ru/images/attach/c/7//4830/4830635_programma__dlya_.pdfIn PDF document text
    • http://img0.liveinternet.ru/images/attach/c/7//4832/4832174_gta__vays__siti_.pdfIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00054489.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x54489 8596 bytes
SHA-256: 6288937d4ab1014f0e66aeadb94d8c36ed39a6b4338538852d3cc6d5df516579
font_01_sfnt_off00055d91.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x55D91 15172 bytes
SHA-256: c93f422a47589e1f0b0c0dd70a53284ee8c1118537d6f17d870c6bd99909be13

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