Malicious PDF — malware analysis report

Static analysis result for SHA-256 88e17ce2fb965675…

MALICIOUS

PDF

187.7 KB Created: 2015-07-25 15:25:28 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 0db7fb7fa26ae4b280bfe88a77bfc45c SHA-1: 6c0a219f9b2d664ffc08d28eb2cc4cabd0fc7c82 SHA-256: 88e17ce2fb96567598049557dd620c9db58fda969786b7bb8272a0a7dc7ee636
90 Risk Score

Malware Insights

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

The PDF file 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 points to botcraftman.ru, which is identified as a malicious redirector. This suggests the document's primary purpose is to redirect the user to a harmful destination.

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%81%D0%B8%D0%BC%D1%83%D0%BB%D1%8F%D1%82%D0%BE%D1%80+%D1%81%D1%82%D1%80%D0%BE%D0%B8%D1%82%D0%B5%D0%BB%D1%8C%D0%BD%D0%BE%D0%B9+%D1%82%D0%B5%D1%85%D0%BD%D0%B8%D0%BA%D0%B8+%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://img1.liveinternet.ru/images/attach/c/5//4199/4199912_izlozhenie_8_klass.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185038_aleks_yekspress_internet_magazin_na_russkom_yazuyke_v_rublyah.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4196/4196346_ustanovochnaya_programma_dlya_printera_canon_lbp_2900.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024b2f.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24B2F 3556 bytes
font_01_sfnt_off000258b2.bin
7737f94074732949013886159016d598b7fcdce08618230f3a251b138827457b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x258B2 14760 bytes
font_02_sfnt_off0002863b.bin
a6626c0bd3595dc776735a93968cf26fa9368d0e017313712711ccf7ec06347e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2863B 14532 bytes
font_03_sfnt_off0002b12b.bin
12d04db0ff0f503b6eae62aa821d96b4ba2f2370690b2e34c628b36bc6f366e5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B12B 6864 bytes
font_04_sfnt_off0002c50b.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C50B 6084 bytes
font_05_sfnt_off0002d4a0.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D4A0 3752 bytes

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