Malicious PDF — malware analysis report

Static analysis result for SHA-256 cbe82c69fa6b390e…

MALICIOUS

PDF

373.9 KB Created: 2015-08-29 01:46:11 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 711cddf49b3a8ae94511d1427f7e039a SHA-1: 7f8ac40ac72074c81f5bc9fe4802bcc0588afca1 SHA-256: cbe82c69fa6b390e5469ea61c5e0919e33afc9832c2e96bb85fee2855711f6d6
120 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell T1204.001 Malicious Link

The PDF file was detected as malicious by ClamAV and contains a critical heuristic firing for a malicious redirector link. The embedded URL points to botcraftman.ru, which is known to host malicious content. The document body is heavily obfuscated and unreadable, providing no further context on the lure. No scripts were extracted from this sample.

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-9093191-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-9093191-0
  • 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=muse+%D0%BD%D0%BE%D1%82%D1%8B+%D0%B4%D0%BB%D1%8F+%D1%84%D0%BE%D1%80%D1%82%D0%B5%D0%BF%D0%B8%D0%B0%D0%BD%D0%BE&charset=utf-8
    • http://img1.liveinternet.ru/images/attach/c/7//4817/4817735_skachat__proshivku__ios_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4818/4818549_krek__novuyy__albom_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4817/4817658_sam__brown__stop_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00058cf8.bin
42b684b8b1784ef5e14195319b99f34fe137a51b1a33edfce827ddc4750fb495		 pdf-font-stream PDF embedded font (sfnt) at offset 0x58CF8 8836 bytes
font_01_sfnt_off0005a6a2.bin
64f8bb411206233cedd7713b0e5360350ec3bdabf10ef87318a447a3d37a7d99		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5A6A2 16176 bytes

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