Malicious PDF — malware analysis report

Static analysis result for SHA-256 469b58c96a30aeef…

MALICIOUS

PDF

380.5 KB Created: 2015-08-22 09:20:06 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 0cf2a1a022cc46f22dae2ac699132751 SHA-1: ce102d8124bf1d447ba1b61e20f3fdb9ee279251 SHA-256: 469b58c96a30aeef39f2a8e24b899cfc23da74a12bb011b29a970298d10fbdb2
90 Risk Score

Malware Insights

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

The PDF file was flagged by a critical heuristic for linking to known malicious redirector infrastructure. The ML classifier also strongly indicated maliciousness. The embedded URL points to botcraftman.ru, which is identified as a malicious redirector. This suggests the document's primary purpose is to lure the user to a malicious website.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9946

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%B6%D0%B8%D0%BB+%D0%B1%D1%8B%D0%BB+%D0%BF%D0%B5%D1%81+%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+%D0%B1%D0%B5%D0%B7+%D1%80%D0%B5%D0%B3%D0%B8%D1%81%D1%82%D1%80%D0%B0%D1%86%D0%B8%D0%B8+%D0%B8+%D1%81%D0%BC%D1%81&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/6//4674/4674681_skachat_igru_ben_10_omnivers_na_kompyuter_cherez_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4674/4674578_kalendarno_tematicheskoe_planirovanie_po_basketbolu_dyussh.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_off0005ab1a.bin
47854e53c1770e285d27669e726a076da5c6ce782f63cca510262fab9f3c79a1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5AB1A 8316 bytes
font_01_sfnt_off0005c340.bin
ecda75aa5ea601cddccf74dce3abd715c27f4ec2b154badcbfdcf43ec8bc8c27		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5C340 15064 bytes

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