Malicious PDF — malware analysis report

Static analysis result for SHA-256 45a7f62a207a7efd…

MALICIOUS

PDF

185.8 KB Created: 2015-07-25 09:00:58 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 1d7d661fffe581ae984fd071e0fa2682 SHA-1: 13e0f717addd31ee1a6a8271e536175dd25605cc SHA-256: 45a7f62a207a7efda821270b981a70b924588971ff3986253c604e81e630c061
90 Risk Score

Malware Insights

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

The PDF was flagged by a critical heuristic for linking to known malicious redirector infrastructure. The ML classifier also assigned a high probability of maliciousness. The embedded URL, http://botcraftman.ru/..., is the primary indicator of malicious intent, likely serving as a lure to a phishing or malware distribution site. No scripts were extracted, and the document body was truncated and uninformative.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9982

Heuristics 2

  • 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.
  • 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%9A%D0%BE%D1%80%D0%B5%D0%B9%D1%81%D0%BA%D0%B8%D0%B9+%D1%81%D0%B5%D1%80%D0%B8%D0%B0%D0%BB+%D0%B8%D1%88%D0%BA+%D0%B6%D0%BE%D0%B4%D1%83%D1%81%D0%B8+%D1%83%D0%B7%D0%B1%D0%B5%D0%BA+%D1%82%D0%B8%D0%BB%D0%B8%D0%B4%D0%B0&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4188/4188883_neat_video_skachat_besplatno_russkaya_versiya.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4195/4195405_maksim_chigincev_tabuy_skachat_besplatno.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4198/4198878_elena_petrova_leyna_3_skachat_besplatno.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000242d8.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x242D8 3556 bytes
font_01_sfnt_off0002505b.bin
77b24a8d7497b62b9c9fbc633a222ee6cb26f2b5b67399d523136042c203b34f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2505B 15036 bytes
font_02_sfnt_off00027ec2.bin
4281521c57608cd51cba8ae51768578e365ee023433536275b2ce0d642b49dc3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27EC2 14520 bytes
font_03_sfnt_off0002a991.bin
78e28b96c761b3a6acaa4e002e150c26ffc7fcc4b54ed1fef122776c53a6e97c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A991 6900 bytes
font_04_sfnt_off0002bd62.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BD62 6084 bytes
font_05_sfnt_off0002ccf7.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CCF7 3752 bytes

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