Malicious PDF — malware analysis report

Static analysis result for SHA-256 4c531ae1a65c803e…

MALICIOUS

PDF

184.8 KB Created: 2015-08-08 09:33:44 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 4b14dcdebe6df649b39d6641f1396626 SHA-1: 6d601c8cffb9d48e7491079b60d80c338b7b4be0 SHA-256: 4c531ae1a65c803e774c48a33687e7776e11c125e1da8947d56e4328eb3e77bb
120 Risk Score

Malware Insights

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

The PDF file was flagged as a malicious redirector by heuristics, and ClamAV identified it as Pdf.Dropper.Agent-7620861-0. The embedded URL points to botcraftman.ru, which is known malicious infrastructure. This suggests the document is designed to lure users to a malicious site, likely for phishing or malware delivery.

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-7620861-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-7620861-0
  • 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%9E%D0%BD%D0%BB%D0%B0%D0%B9%D0%BD+%D0%B8%D0%B3%D1%80%D1%8B+%D0%B5%D0%B7%D0%B4%D0%B0+%D0%BD%D0%B0+%D0%BA%D0%B0%D0%BC%D0%B0%D0%B7%D0%B5+%D1%81+%D0%BF%D1%80%D0%B8%D1%86%D0%B5%D0%BF%D0%BE%D0%BC&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/6//4383/4383870_himiya_9_klass_gabrielyan_chitat.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4383/4383769_shema_podklyucheniya_signalizacii_aps.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4383/4383977_sbornik_fanfikov.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002410a.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2410A 3556 bytes
font_01_sfnt_off00024e8d.bin
0a240b6084e263dff30dafc6e12774f61a85ff3b62dd419b73e1e337e4d910e4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24E8D 14428 bytes
font_02_sfnt_off00027b63.bin
dde8cb3db78f49492d397de1013a074ab9c596bc0508faa33f94bd64189db0ac		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27B63 14468 bytes
font_03_sfnt_off0002a616.bin
42f5cb9e46ea15bc8edae6084753d06873c9c7d7989021de3796e47007ead108		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A616 6744 bytes
font_04_sfnt_off0002b963.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B963 6084 bytes
font_05_sfnt_off0002c8f8.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C8F8 3752 bytes

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