Malicious PDF — malware analysis report

Static analysis result for SHA-256 66039c62c4418c9e…

MALICIOUS

PDF

365.3 KB Created: 2015-08-22 08:53:51 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: dac1ba6c759fdcc5da32400dba00ef49 SHA-1: fbd066c3bbbdd0d1f56bfcd1c43be9bde19582d3 SHA-256: 66039c62c4418c9ef4fd46f303d363cde5df327ff7a8c719f4bf32a4550f3c34
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link to a known malicious redirector, botcraftman.ru, which is a strong indicator of malicious intent. The ML classifier also flagged this PDF with high confidence. While no scripts were explicitly extracted, the presence of a malicious URL suggests the document is designed to lure the user to a compromised site, likely for further exploitation or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9952

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%B3%D0%BE%D1%82%D0%BE%D0%B2%D1%8B%D0%B9+%D1%81%D0%B5%D1%80%D0%B2%D0%B5%D1%80+%D0%B4%D0%BB%D1%8F+css+v34+%D1%87%D0%B5%D1%80%D0%B5%D0%B7+%D1%82%D0%BE%D1%80%D1%80%D0%B5%D0%BD%D1%82&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/6//4674/4674462_tkp_45104372008_skachat.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4674/4674487_bonus_kod_world_of_tanks_2015_na_noyabr.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4674/4674476_cronos_baza_dannuyh_torrent.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00056a50.bin
5cbd2bbf3c7da120f0fc0b406817ee129685e78c182b3391b6456ca7ca858c45
pdf-font-stream PDF embedded font (sfnt) at offset 0x56A50 9800 bytes
font_01_sfnt_off00058566.bin
37396b0d775243b9eb60b3216c4548717f3148cd696e6959d505e57f08e540a2
pdf-font-stream PDF embedded font (sfnt) at offset 0x58566 15572 bytes