Malicious PDF — malware analysis report

Static analysis result for SHA-256 0c24a3a51017099a…

MALICIOUS

PDF

185.9 KB Created: 2015-07-25 19:42:47 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 27616e6a151eecffa57251e9e88b47ac SHA-1: 1e88cbf22edc77fa3edb0386ee6ada5bb69187b1 SHA-256: 0c24a3a51017099a14ed820717cb869e52dd84425216b99d4814412f4be4a5db
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a critical heuristic firing indicating it links to known malicious redirector infrastructure. The ML classifier also strongly flagged this PDF as malicious. The embedded URL, http://botcraftman.ru/, is identified as a malicious redirector, likely serving as a lure for phishing or malware distribution. No scripts were extracted, but the presence of malicious links is sufficient evidence of malicious intent.

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-8785573-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-8785573-0
  • 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=maroon+5+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%B2%D1%81%D0%B5+%D0%B0%D0%BB%D1%8C%D0%B1%D0%BE%D0%BC%D1%8B+%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://img0.liveinternet.ru/images/attach/c/5//4204/4204415_luchshiy_bot__podskazchik_hodov_dlya_igruy_nebesa.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184514_adobe_photoshop_cs7_rus_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4196/4196348_klub_pingvinov_koduy_na_knigu_sokrovisch_2015.pdf
    • http://www.microsoft.com/typography/fonts/
    • http://www.microsoft.com/typography/fonts/You

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024279.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24279 3556 bytes
font_01_sfnt_off00024ffc.bin
6919f599d6e741dd4d081304c984347cdd419cfd218d5a241fc64b2bfe8314b7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24FFC 14840 bytes
font_02_sfnt_off00027da1.bin
799a3e2fd66a5d9e9ae51610ecd62f5cee5fa04b6d8c7ee7e5261cfe97bfe9fa		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27DA1 14640 bytes
font_03_sfnt_off0002a8d6.bin
2fbc964911a4534d571550e8f33fb699b2a59fb0435610bbc164b390d713201f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A8D6 7200 bytes
font_04_sfnt_off0002bdcf.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BDCF 6084 bytes
font_05_sfnt_off0002cd64.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CD64 3752 bytes

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