Malicious PDF — malware analysis report

Static analysis result for SHA-256 6f0ebd2677ce2509…

MALICIOUS

PDF

184.4 KB Created: 2015-08-08 09:55:54 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 9ba21ed2bf59b035a9fff93b6ab67661 SHA-1: 5b43ad3f1b2b1daa7c44309547696918c17653ed SHA-256: 6f0ebd2677ce25098fd7b1fa46952425351360a8388af7a114a3845cbb8be0c9
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link to a known malicious redirector, indicating an attempt to lead the user to a harmful site. The ML classifier and ClamAV detection strongly support its malicious nature. The embedded URL is the primary indicator of malicious intent, likely serving as a lure to a phishing or malware distribution 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-7622570-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-7622570-0
  • 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=%D1%82%D0%B5%D0%BA%D1%81%D1%82+%D0%BF%D0%B5%D1%81%D0%BD%D0%B8+%D0%B7%D0%B4%D1%80%D0%B0%D0%B2%D1%81%D1%82%D0%B2%D1%83%D0%B9+%D0%BC%D0%B8%D0%BB%D1%8B%D0%B9+%D0%BA%D0%B0%D0%BA+%D0%B4%D0%B5%D0%BB%D0%B0&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/6//4383/4383984_raspoznavatel_teksta_skachat_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4384/4384661_roberta_chaldini_psihologiya_vliyaniya_fb2.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4384/4384650_arabskie_filmuy_smotret_onlayn_na_russkom_yazuyke.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_off00023e0a.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23E0A 3556 bytes
font_01_sfnt_off00024b8d.bin
0063ffb4e5fc7b69c4a008521a745da3ad6a3f9814fc0da7857b642ac1c73ff3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24B8D 14704 bytes
font_02_sfnt_off000279a6.bin
dde8cb3db78f49492d397de1013a074ab9c596bc0508faa33f94bd64189db0ac		 pdf-font-stream PDF embedded font (sfnt) at offset 0x279A6 14468 bytes
font_03_sfnt_off0002a459.bin
e97cd0c2a9e76debe9f3bb49e016967d31051e7821ccade2d34ae7c146ed0ff8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A459 6720 bytes
font_04_sfnt_off0002b79f.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B79F 6084 bytes
font_05_sfnt_off0002c734.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C734 3752 bytes

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