Malicious PDF — malware analysis report

Static analysis result for SHA-256 c8dd2d37d005a259…

MALICIOUS

PDF

186.2 KB Created: 2015-07-26 03:03:17 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: c295e1abb2634e8861076ab9d35036de SHA-1: 467c99628a16e9e157259f6e4447eecc60695a32 SHA-256: c8dd2d37d005a259d3d320192072435bcfbfb0dcc1e7621852be46b9e7ded3b4
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 harmful website.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9982

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%BC%D0%B5%D1%84%D0%BE%D0%B4%D0%B8%D0%B9+%D0%B1%D1%83%D1%81%D0%BB%D0%B0%D0%B5%D0%B2+%D0%BB%D0%B0%D0%B4%D1%8C%D1%8F+%D1%81%D0%B2%D0%B5%D1%82%D0%B0+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C-1&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/5//4195/4195216_skachat_igruy_besplatno_na_kompyuter_bez_registracii.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185204_uchebnuye_zavedeniya_mchs_rossii_posle_9_klassa.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185697_skachat_maynkraft_173_s_modami_cherez_torrent.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000243cb.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x243CB 3556 bytes
font_01_sfnt_off0002514e.bin
0f405ad2e72e952f2b7cdf1810d82cd86d36c4ac8b6f5b07db56bee2018cf8ed		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2514E 14804 bytes
font_02_sfnt_off00027fd1.bin
13af8eda4f1eb8ddfda35002abe8a3efc5fedb23c7efab0af51a2b467e80e8a3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27FD1 14468 bytes
font_03_sfnt_off0002aa87.bin
c92a14ade0ce821923ea15bedc9b2cdbd6475a10d21b971f17e05b897990648d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2AA87 7012 bytes
font_04_sfnt_off0002bee7.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BEE7 6084 bytes
font_05_sfnt_off0002ce7c.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CE7C 3752 bytes

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