Malicious PDF — malware analysis report

Static analysis result for SHA-256 b38c239436ad1f26…

MALICIOUS

PDF

361.3 KB Created: 2015-08-21 09:16:34 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 7c3f7503ff014b343f200aebbdb097b0 SHA-1: 4708fc550e1e1aa7c0e285f6e84a5f1550c6f906 SHA-256: b38c239436ad1f269c40abd4f31f2d2a0ebc36a5355284582b13b30d93b2288e
60 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a critical heuristic firing indicating a link to a known malicious redirector. This suggests the document is designed to lure users to a malicious website. No scripts were extracted, and the document body was heavily obfuscated, preventing further analysis of the specific lure. The primary IOC is the malicious redirector URL.

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%98%D0%B3%D1%80%D0%B0+%D1%80%D0%B0%D0%BE+%D1%80%D0%B0%D0%BE+2+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%B1%D0%B5%D1%81%D0%BF%D0%BB%D0%B0%D1%82%D0%BD%D0%BE&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/6//4654/4654703_skachat_drayver_printera_canon_lbp_2900.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4654/4654689_skachat_igru_metro_2034_cherez_torrent_besplatno_na_russkom.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4654/4654698_wetransfer_fayloobmennik_na_russkom_yazuyke.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00055ebb.bin
3c63a26dde8f12e606c5505c3804b217375213315a96c6deea6ba7de2ead563d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x55EBB 7784 bytes
font_01_sfnt_off00057529.bin
d7bffc55054c509c25a31170a5187efd5916f39d737a7539a140df928c3acc76		 pdf-font-stream PDF embedded font (sfnt) at offset 0x57529 15924 bytes

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