Malicious PDF — malware analysis report

Static analysis result for SHA-256 86fb449456a9a691…

MALICIOUS

PDF

186.8 KB Created: 2015-07-24 11:36:36 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: dd09f7c614d221ae4af0d567276ebf8e SHA-1: 42f1ffa5f9323462e48cdf652614a8794a4b4716 SHA-256: 86fb449456a9a691b4ca44fa2d4311ccd6e5b76ceb9f0d86eabb3bce67770ac7
90 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector infrastructure. The ML classifier also flagged this PDF with high confidence. The primary attack vector appears to be a user clicking on the embedded malicious link, which is designed to lead to further compromise.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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%81%D0%B8%D0%BC%D1%83%D0%BB%D1%8F%D1%82%D0%BE%D1%80+%D0%BF%D0%B0%D1%81%D1%81%D0%B0%D0%B6%D0%B8%D1%80%D1%81%D0%BA%D0%BE%D0%B3%D0%BE+%D1%81%D0%B0%D0%BC%D0%BE%D0%BB%D0%B5%D1%82%D0%B0+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D1%82%D0%BE%D1%80%D1%80%D0%B5%D0%BD%D1%82&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184815_1s_predpriyatie_82_konfiguraciya_torgovlya_i_sklad_torrent.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4189/4189740_insulinovuyy_indeks_tablica.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185342_panov_misteriya_mesti_skachat_besplatno_fb2.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000248c9.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x248C9 3556 bytes
font_01_sfnt_off0002564c.bin
d14c54406313a7321f99ac97802822b4a150b0b434497bb122de689bc0af0c39		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2564C 14360 bytes
font_02_sfnt_off00028365.bin
23d6b651980d28cba5c3ab5ccb90388f6249ed2132b76a8927649775759f8dff		 pdf-font-stream PDF embedded font (sfnt) at offset 0x28365 14468 bytes
font_03_sfnt_off0002ae15.bin
c9d57f1b5f783414623895c458e834232bfc894720da82cd3b4fea6b0ceae252		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2AE15 6744 bytes
font_04_sfnt_off0002c178.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C178 6084 bytes
font_05_sfnt_off0002d10d.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D10D 3752 bytes

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