Malicious PDF — malware analysis report

Static analysis result for SHA-256 e425b15ae2128f23…

MALICIOUS

PDF

186.1 KB Created: 2015-07-23 20:20:36 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: cb05fe6439e75f3308b62a23eec211ed SHA-1: 72ebd7ef7b112bc16f3d1c2cd1f85dd906a97e28 SHA-256: e425b15ae2128f23b748e06d9d1a7550b7b24e7bddb9f692ea9aa2dfb6d45579
150 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics, including a critical finding for a malicious redirector link and a high ML score. The embedded URL points to 'botcraftman.ru', which is identified as a known malicious redirector. This suggests the PDF is designed to lure users to a malicious site, likely for malware distribution or phishing. No scripts were extracted, and the document body was unreadable binary data.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9982

Heuristics 3

  • 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.
  • ClamAV: Pdf.Dropper.Agent-7494996-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-7494996-0
  • 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+minecraft+pe+0+8+1+%D0%BD%D0%B0+%D0%B0%D0%BD%D0%B4%D1%80%D0%BE%D0%B8%D0%B4+%D0%B8%D0%B3%D1%80%D1%8B&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/5//4183/4183174_kursovoy_proekt_po_arhitekture_mnogoyetazhnuyy_zhiloy_dom.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184440_kod_aktivacii_dlya_kaspersky_internet_security_2015_na_90_dney.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4183/4183185_lada_kalina_shema_yelektricheskaya.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024203.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24203 3556 bytes
font_01_sfnt_off00024f86.bin
8ad8ffe050b7d9d3f5bcc6c3106236cc956ef0ca6257efd88ab106bdb624a15b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24F86 14584 bytes
font_02_sfnt_off00027cbc.bin
a9acda25da7f33bb2443576eba8e78004237cef90a825cedc0f0993a1734aec3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27CBC 14840 bytes
font_03_sfnt_off0002a897.bin
32e3c3a7b024f90e626300a188f19c0c0612b1a40ae7737e7d29f43acbc93b12		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A897 7540 bytes
font_04_sfnt_off0002beba.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BEBA 6084 bytes
font_05_sfnt_off0002ce4f.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CE4F 3752 bytes

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