Malicious PDF — malware analysis report

Static analysis result for SHA-256 f1ed942760c3cf5d…

MALICIOUS

PDF

184.8 KB Created: 2015-08-08 09:55:46 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 2ef0e0d259ecbf6b9949bdee11ffb5a3 SHA-1: f01ee4d625043b8506396d4f53b4b0af022aaf52 SHA-256: f1ed942760c3cf5def737d455d49984f4e312010e72e6703c79951f8b66f5867
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, http://botcraftman.ru/, which is a strong indicator of malicious intent. The ML classifier also flagged this PDF with high confidence. The document body appears to be truncated and contains only metadata and embedded image data, offering no further context on the lure. No scripts were extracted from this sample.

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%80%D0%B0%D1%81%D0%BF%D0%B8%D1%81%D0%B0%D0%BD%D0%B8%D0%B5+%D0%B0%D0%B2%D1%82%D0%BE%D0%B1%D1%83%D1%81%D0%BE%D0%B2+%D0%B3%D0%BE%D0%BC%D0%B5%D0%BB%D1%8C&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/6//4384/4384056_skachat_univer_novaya_obschaga_4_sezon_cherez_torrent.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4383/4383956_torrent_mmn.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4384/4384021_skachat_sims_fripley_na_android_s_beskonechnuymi_dengami.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024165.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24165 3556 bytes
font_01_sfnt_off00024ee8.bin
32fc06ae03dd632c3e985dd6293f510a62604aa3958cfe561095ad7b4a6697da		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24EE8 14276 bytes
font_02_sfnt_off00027c08.bin
dde8cb3db78f49492d397de1013a074ab9c596bc0508faa33f94bd64189db0ac		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27C08 14468 bytes
font_03_sfnt_off0002a6bb.bin
070a55c6b3d03d317eeb5a58bcf5435c00112b6926398d559a7acfeb0d5e6b57		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A6BB 6548 bytes
font_04_sfnt_off0002b96f.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B96F 6084 bytes
font_05_sfnt_off0002c904.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C904 3752 bytes

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