Malicious PDF — malware analysis report

Static analysis result for SHA-256 4d3a422a8857417e…

MALICIOUS

PDF

352.7 KB Created: 2015-08-25 23:29:40 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6) First seen: 2021-06-17
MD5: 5ab8a4044971365063a179342ff10fad SHA-1: 5ce61b200900a0d902e284562ade4ffca94bcf04 SHA-256: 4d3a422a8857417e1ff05155648deda9679ea5ee5f1be2faaa74910d36b9f882
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document was flagged by multiple heuristics as malicious, specifically for containing a link to known malicious redirector infrastructure. The embedded URL, http://botcraftman.ru/..., is the primary indicator of compromise. While no scripts were explicitly extracted, the PDF structure and the malicious link suggest an attempt to lure the user to a harmful site, likely for phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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%B2%D1%81%D0%B5+%D1%87%D0%B8%D1%82%D1%8B+%D0%BD%D0%B0+%D0%B2%D0%B0%D1%80%D1%84%D0%B5%D0%B9%D1%81&charset=utf-8 In PDF document text
    • http://img0.liveinternet.ru/images/attach/c/7//4740/4740548_skachat__gotovuye_.pdfIn PDF document text
    • http://img0.liveinternet.ru/images/attach/c/7//4740/4740949_vizitka__taksi__shablon_.pdfIn PDF document text
    • http://img0.liveinternet.ru/images/attach/c/7//4742/4742012_diablo__3__skachat_.pdfIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00053d61.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x53D61 8640 bytes
SHA-256: a6bd654f19372d8ebdd3a22387b57c64af8287216194eba12e2ba136d1dd9ff4
font_01_sfnt_off00055639.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x55639 14484 bytes
SHA-256: 0082db6eda04e18f77a15fb310b6cd3309ee7d701a82258620e3c252a492ce8a