Malicious PDF — malware analysis report

Static analysis result for SHA-256 d16160147c14723e…

MALICIOUS

PDF

185.8 KB Created: 2015-08-05 13:59:55 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: eec31c314f00fbbbebcc81498c8617ea SHA-1: b64d8937a15b36b2db340fbe298bf6ce6c146bbd SHA-256: d16160147c14723eb1ff2c842b6295b6d6f4601b8a8ab7607fd29d4e827b9d3e
90 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and contains a link to a known malicious redirector. This suggests the document is designed to lure users to a malicious website. No scripts were extracted, and the document body was truncated, limiting further analysis of the exact payload or delivery mechanism.

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%BA%D0%BE%D0%B4%D1%8B+%D0%BE%D1%88%D0%B8%D0%B1%D0%BE%D0%BA+%D0%BA%D0%BE%D0%BD%D0%B4%D0%B8%D1%86%D0%B8%D0%BE%D0%BD%D0%B5%D1%80%D0%BE%D0%B2+dantex&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/6//4304/4304695_adskaya_pautina_kak_vuyzhit_v_mire_narcissizma_skachat.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4304/4304624_skayrim_koduy_na_mebel.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4304/4304684_diktant_dlya_4_klassa_po_russkomu_yazuyku_s_zadaniyami.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024328.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24328 3556 bytes
font_01_sfnt_off000250ab.bin
b9b2e66a5514881f19bd1043aa5581cd6440b6d2f8d6d1d408f6e23ae3789dc5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x250AB 14636 bytes
font_02_sfnt_off00027de3.bin
6fc2dabe5022d2d08c8257d43d57c0bab710343dfd6f7f71aedc838471f0e7f4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27DE3 14700 bytes
font_03_sfnt_off0002a951.bin
77f756f0776d250d4c48d6a79530182d91de9e875f084f388afc376e94cd6208		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A951 7012 bytes
font_04_sfnt_off0002bd85.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BD85 6084 bytes
font_05_sfnt_off0002cd1a.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CD1A 3752 bytes

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