Malicious PDF — malware analysis report

Static analysis result for SHA-256 fcbd13d7d1293072…

MALICIOUS

PDF

187.8 KB Created: 2015-07-25 11:34:30 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 9abbf56469c589acd01ec5a52371d015 SHA-1: 4aefe022d8caf0e3d2da91693d486d6ec963b48d SHA-256: fcbd13d7d1293072cc8a2e02248558a9da3fc2be5f8431b33213b4d20259132a
90 Risk Score

Malware Insights

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

The PDF document 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 users to a malicious site.

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=%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D1%87%D0%B8%D1%82+%D0%BD%D0%B0+%D0%B2%D0%B0%D1%80%D1%84%D0%B5%D0%B9%D1%81+%D0%B0%D0%B8%D0%BC+%D0%B1%D0%BE%D1%82+%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%81%D0%BC%D1%81&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185394_skachat_porno_zhurnal.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4193/4193497_geforce_8600_gt_256mb_ati_amd_radeon_x1950_256mb.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185110_igo_9_dlya_windows_ce_60_torrent.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002480d.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2480D 3556 bytes
font_01_sfnt_off00025590.bin
71943ce4c296072c4eb57afd9404f68fb630b6224d4a8ac1c6bc2d772409b56c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x25590 15600 bytes
font_02_sfnt_off000285dd.bin
c33e6903d76079777c1b082a355654bfa5653b97afd40bc3e5344b34556d24bd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x285DD 14468 bytes
font_03_sfnt_off0002b08f.bin
54142d41475fe9996e0295ab359a537ed8afbeb7046794e1be8e18edf23fce44		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B08F 7116 bytes
font_04_sfnt_off0002c533.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C533 6084 bytes
font_05_sfnt_off0002d4c8.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D4C8 3752 bytes

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