Malicious PDF — malware analysis report

Static analysis result for SHA-256 c2673d4c9b8b9998…

MALICIOUS

PDF

384.4 KB Created: 2015-08-20 09:33:54 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: d25e38d04034fad0886d39b6ccde098b SHA-1: c9d27c58e6cb451e9ce039fe03907f2385408558 SHA-256: c2673d4c9b8b9998cb42d7b04b1de82056d75e1d30f654de00c544285f962b8f
90 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing indicating a malicious redirector link to botcraftman.ru. This suggests the document's primary purpose is to lure the user to a potentially harmful external site. No scripts were extracted, but the embedded URL is a high-priority indicator of compromise.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9901

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%9E%D1%82%D0%B2%D0%B5%D1%82%D1%8B+%D0%BD%D0%B0+%D0%B2%D0%BE%D0%BF%D1%80%D0%BE%D1%81%D1%8B+%D0%BA+%D1%8D%D0%BA%D0%B7%D0%B0%D0%BC%D0%B5%D0%BD%D1%83+%D0%BD%D0%B0+%D1%81%D1%83%D0%B4%D1%8C%D1%8E&charset=utf-8
    • http://img1.liveinternet.ru/images/attach/c/6//4639/4639521_fifa_2015_skachat_torrent_russkaya_versiya_dlya_pc.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4639/4639732_philips_mobile_phone_tools_331a.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4639/4639359_chit_na_beskonechnuyy_ballon_v_tankah_onlayn.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005b972.bin
3f6275196bc0de17e9fbf221628f296651529c172204e7a1d9a11bb1a2fb801c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5B972 8148 bytes
font_01_sfnt_off0005d139.bin
a256cc2d4cab022a0406f5efc1ad079304372219569cf648fff9c5d36a4f574c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5D139 16124 bytes

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