Malicious PDF — malware analysis report

Static analysis result for SHA-256 25459c42412a0c7b…

MALICIOUS

PDF

186.3 KB Created: 2015-07-24 12:37:59 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 19319be8ea4736edeaf33009ed321cb9 SHA-1: 3b82dfcf4e61703e891f5270412ab8f4390ab6ef SHA-256: 25459c42412a0c7b548a8a2d59c4562678f8809d967f7666b5579ffaa4f58df1
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 is designed to lure users to a malicious website, likely for phishing or malware delivery.

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%A1%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%B1%D0%B5%D1%81%D0%BF%D0%BB%D0%B0%D1%82%D0%BD%D1%8B%D0%B9+%D0%BF%D0%BB%D0%B5%D0%B9+%D0%BC%D0%B0%D1%80%D0%BA%D0%B5%D1%82+%D0%BD%D0%B0+%D0%BF%D0%BB%D0%B0%D0%BD%D1%88%D0%B5%D1%82&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/5//4191/4191998_skachat_spin_tires_2015_polnuyu_versiyu_cherez_torrent.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185668_egye_po_matematike_2015_onlayn_bez_registracii_11_klass.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184696_skachat_upl_dlya_pes_2015_cherez_torrent.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024677.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24677 3556 bytes
font_01_sfnt_off000253fa.bin
c2bad6dac3b28159d5916913d72c7e16f9208de51196fd868aba0e599d91d4dd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x253FA 14448 bytes
font_02_sfnt_off00028135.bin
8c5e5bc4674cee60ec6c1619e60533ff44be00efca6b5f228c587d2f19a61a12		 pdf-font-stream PDF embedded font (sfnt) at offset 0x28135 14520 bytes
font_03_sfnt_off0002ac04.bin
fa16d80164bd51a7d5d66e1b76654ef731bdc69a3b58348e0af6ebf692b08af9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2AC04 6700 bytes
font_04_sfnt_off0002bf34.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BF34 6084 bytes
font_05_sfnt_off0002cec9.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CEC9 3752 bytes

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