Malicious PDF — malware analysis report

Static analysis result for SHA-256 f7c2c1e7d9cf4aa9…

MALICIOUS

PDF

185.9 KB Created: 2015-08-08 12:37:19 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 01c62b2e79c5b8de48061df5c753b0cf SHA-1: 8fb8ebc927891c5082f596027e00917be29259a7 SHA-256: f7c2c1e7d9cf4aa9504497eab2a6e3358de0f1d082c5e96cc5528fd631021b9f
90 Risk Score

Malware Insights

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

The PDF was flagged by a critical heuristic for containing a link to a known malicious redirector, http://botcraftman.ru/. This indicates the document is likely part of a phishing or malware distribution campaign. The ML classifier also strongly supports the malicious verdict. 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=%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D1%84%D0%B8%D0%BB%D1%8C%D0%BC+1001+%D0%BD%D0%BE%D1%87%D1%8C+%D1%87%D0%B5%D1%80%D0%B5%D0%B7+%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/6//4390/4390355_probivanie_nomerov_v_ukraine.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4386/4386555_skachat_drayver_samsung_ml_2160.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4390/4390286_hasp_license_manager_windows_server_2008_x64.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024373.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24373 3556 bytes
font_01_sfnt_off000250f6.bin
40404cedb3a5415419f072c0976740518c18ecaa00e922bc2bf37c324b0d647f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x250F6 15144 bytes
font_02_sfnt_off00027fba.bin
38289d23cad9be3616ee8da6c70791c855e02ac54892d17b3395a9fce63ab9be		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27FBA 14468 bytes
font_03_sfnt_off0002aa6e.bin
22f16fb3975c3145f2692967e9b68840ed877d3df62d0ad0c2996bc060927946		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2AA6E 6736 bytes
font_04_sfnt_off0002bde7.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BDE7 6084 bytes
font_05_sfnt_off0002cd7c.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CD7C 3752 bytes

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