Malicious PDF — malware analysis report

Static analysis result for SHA-256 221c873f1c2197f1…

MALICIOUS

PDF

353.4 KB Created: 2015-08-28 18:39:14 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 7fe081d0e45b0a5eda9f3140f6184d80 SHA-1: e0611b7becf96cc41b1105228fb85f997c0daf66 SHA-256: 221c873f1c2197f1c3e1259afa346c8732cbab7f186b151b931dd6a594932cfa
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 malicious redirector link. The embedded URL 'http://botcraftman.ru/?lip&keyword=%D0%B3%D0%BE%D0%BB%D1%8B%D0%B5+%D0%BF%D0%BE+%D1%81%D0%BA%D0%B0%D0%B9%D0%BF%D1%83&charset=utf-8' is the primary indicator of malicious intent. The document body is heavily obfuscated and does not provide further context on the lure. No scripts were extracted from this sample.

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%B3%D0%BE%D0%BB%D1%8B%D0%B5+%D0%BF%D0%BE+%D1%81%D0%BA%D0%B0%D0%B9%D0%BF%D1%83&charset=utf-8
    • http://img1.liveinternet.ru/images/attach/c/7//4809/4809789_nemeckiy__yazuyk__10_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4809/4809603_chitat__knigu__dnevniki_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4809/4809285_kindzadza__skachat_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00054031.bin
33fd4a4ee5b52c4220a07fb8a64129a9f09b751b124c590ac48c3208ca7ddf27		 pdf-font-stream PDF embedded font (sfnt) at offset 0x54031 7976 bytes
font_01_sfnt_off000556f1.bin
cc2485c62d24d8dad4f3539a91cc5442e11b1f02f1ae44e3955895e5a14bc8cd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x556F1 14932 bytes

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