Malicious PDF — malware analysis report

Static analysis result for SHA-256 e43de4874de30d2e…

MALICIOUS

PDF

352.4 KB Created: 2015-08-24 00:08:33 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6) First seen: 2021-10-23
MD5: 9c74f521b63a6440d5956d57a6be3a4e SHA-1: 2933835531080c8c3ceaede22862c9b02790db45 SHA-256: e43de4874de30d2ef584150f39819b1180bb9a7857db060c6c15b1dee67d083d
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a heuristic firing for a malicious redirector link pointing to botcraftman.ru. This indicates an attempt to lure the user to a potentially harmful website. Although no scripts were extracted, the presence of the malicious URL is a strong indicator of malicious intent, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9977

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+new+english+file+advanced+cd&charset=utf-8 In PDF document text
    • http://img1.liveinternet.ru/images/attach/c/6//4693/4693083_buhgalterskiy__uchet__na_.pdfIn PDF document text
    • http://img1.liveinternet.ru/images/attach/c/6//4693/4693109_geroinya__svoego__romana_.pdfIn PDF document text
    • http://img1.liveinternet.ru/images/attach/c/6//4693/4693793_dogovor__obratnogo__vuykupa_.pdfIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000538ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x538AB 9912 bytes
SHA-256: 2d60a993779e2999644a123db85f62bcf293711ecf1cc7514b7c0b4610265501
font_01_sfnt_off00055446.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x55446 14804 bytes
SHA-256: b8ae02b843a6fc48981e5e9aa4fbb33a04a641d01bf477a7715bf812a9e0fa6f

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