Malicious PDF — malware analysis report

Static analysis result for SHA-256 403d9813c7fd08ed…

MALICIOUS

PDF

185.6 KB Created: 2015-07-23 20:54:15 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: a8d686cec467d30e98ead0377c34297d SHA-1: dca7ef853811eb3392ac77dfd73846127003be6b SHA-256: 403d9813c7fd08edbbf3b2317dc18ce0ffa3308b43a1decd2960c2f95a82c891
150 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, botcraftman.ru. This indicates the document is intended to lure the user to a malicious site, likely for further exploitation or credential harvesting. The ClamAV detection as Pdf.Dropper.Agent-7493962-0 further supports its malicious nature.

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-7493962-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-7493962-0
  • 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=%D0%A1%D0%BF%D1%80%D0%B0%D0%B2%D0%BE%D1%87%D0%BD%D0%B8%D0%BA+%D0%BB%D0%B5%D1%81%D0%BE%D1%83%D1%81%D1%82%D1%80%D0%BE%D0%B8%D1%82%D0%B5%D0%BB%D1%8F+%D0%BD+%D0%BD+%D0%B3%D1%83%D1%81%D0%B5%D0%B2+zip&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184409_programma_vremya_segodnyashniy_vuypusk_21_00_smotret_onlayn.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184295_skachat_mp_flooder.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184691_skachat_torrent_paragon_domashniy_yekspert_14.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000242f1.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x242F1 3556 bytes
font_01_sfnt_off00025074.bin
0dbe611336a1b67d4fb3549af026be76228429e27058183cba56ce63030441ba		 pdf-font-stream PDF embedded font (sfnt) at offset 0x25074 14632 bytes
font_02_sfnt_off00027df9.bin
25467c0ca17679907e639be50da93a0a0331ed6fbe6a65982f7fb494542c064e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27DF9 14516 bytes
font_03_sfnt_off0002a8e2.bin
2947946e2b42311bff021cd22d358aa25341dd3192bbd8532be21d51f92243b6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A8E2 6836 bytes
font_04_sfnt_off0002bc92.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BC92 6084 bytes
font_05_sfnt_off0002cc27.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CC27 3752 bytes

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