Malicious PDF — malware analysis report

Static analysis result for SHA-256 744e123dddfb0720…

MALICIOUS

PDF

184.7 KB Created: 2015-07-26 00:19:37 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: c3ee59a115ba7b436b54f02cebaf5a44 SHA-1: 3401bc6261fe074b9c060a02619683f67dc829a4 SHA-256: 744e123dddfb07203ecd528b7a405403e7095fe6fb99d50fc29500d36a2ac1b4
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF was flagged by multiple heuristics as malicious, including a critical finding for a link to a known malicious redirector. The ML classifier also assigned a high probability of maliciousness. The embedded URL points to botcraftman.ru, which is identified as a malicious redirector, suggesting the document's primary purpose is to lure users to a harmful site.

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-7784932-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-7784932-0
  • 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%BA%D0%B0%D0%BA+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%BF%D0%BB%D0%B5%D0%B9+%D0%BC%D0%B0%D1%80%D0%BA%D0%B5%D1%82&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185620_live_cd_windows_7_2015_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4204/4204089_skachat_operu_mini_na_telefon_flay_e141tv.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4192/4192949_yelektricheskaya_shema_kamaz_6520.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_off00024070.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24070 3556 bytes
font_01_sfnt_off00024df3.bin
f4e2c4842c23636d44ae3b30bed58fb2b133043c31dcaf20dc3e5ccac0a86a1d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24DF3 14720 bytes
font_02_sfnt_off00027c30.bin
c33e6903d76079777c1b082a355654bfa5653b97afd40bc3e5344b34556d24bd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27C30 14468 bytes
font_03_sfnt_off0002a6e2.bin
2c2df8cb3506954aa9cbe352e1b4940a62ce8d53eaaa14890cde452ca4aa05ac		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A6E2 6376 bytes
font_04_sfnt_off0002b8e4.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B8E4 6084 bytes
font_05_sfnt_off0002c879.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C879 3752 bytes

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