Malicious PDF — malware analysis report

Static analysis result for SHA-256 4f6be8f94a21dda7…

MALICIOUS

PDF

188.5 KB Created: 2015-07-27 01:49:47 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: ce790dab42f57da7f872f72eb1c9f46f SHA-1: 427f9d03efefa89565407b4c9d65b70df6d38e74 SHA-256: 4f6be8f94a21dda7ccf78c3f16944b6560fc082b9078342fa2d4283b55476240
150 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics, including ClamAV and an ML classifier, indicating malicious content. A critical heuristic identified a link to known malicious redirector infrastructure at http://botcraftman.ru/. This suggests the PDF is likely a lure to redirect users to a malicious site, potentially for further exploitation or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9982

Heuristics 3

  • 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.
  • ClamAV: Pdf.Dropper.Agent-7494015-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-7494015-0
  • 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=pro100+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%B1%D0%B5%D1%81%D0%BF%D0%BB%D0%B0%D1%82%D0%BD%D0%BE+%D0%BD%D0%B0+%D1%80%D1%83%D1%81%D1%81%D0%BA%D0%BE%D0%BC+%D0%BF%D0%BE%D0%BB%D0%BD%D0%B0%D1%8F+%D0%B2%D0%B5%D1%80%D1%81%D0%B8%D1%8F+%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://img1.liveinternet.ru/images/attach/c/5//4187/4187761_skachat_igru_cherez_torrent_the_amazing_spiderman.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4220/4220008_vinovatuy_zvezduy_skachat_knigu_fb2.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184909_kak_podnyatsya_na_kruyshu_myeyz_tauyer_v_gta_5.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024d4a.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24D4A 3556 bytes
font_01_sfnt_off00025acd.bin
300ea9eb81b94d90498dd65c4d5ae322049af812e466026aca9d641d14417865		 pdf-font-stream PDF embedded font (sfnt) at offset 0x25ACD 14776 bytes
font_02_sfnt_off00028839.bin
9319ccbb37be5727d2d752ea096f6760e798e2d16b41238ed5e4ce61d2cb9edf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x28839 14608 bytes
font_03_sfnt_off0002b301.bin
281352142e1c49e6319048a5a076d89ad297607febaac23a74c555cf70f8edbf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B301 7224 bytes
font_04_sfnt_off0002c822.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C822 6084 bytes
font_05_sfnt_off0002d7b7.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D7B7 3752 bytes

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