Malicious PDF — malware analysis report

Static analysis result for SHA-256 3abbeabd65c1d4c4…

MALICIOUS

PDF

378.2 KB Created: 2015-08-28 00:56:15 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 88dd6577c6246f654ab5f18a9a06e70d SHA-1: 3f8742ea791671090ab0d00e84d553c98eef6257 SHA-256: 3abbeabd65c1d4c43608a3d5bd54530239a229a9cb9fefef28764cd81bdeff7e
120 Risk Score

Malware Insights

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

The PDF file was flagged by ClamAV as Pdf.Dropper.Agent-9186518-0, indicating it is a dropper. A critical heuristic identified a link to a known malicious redirector at http://botcraftman.ru/. This suggests the PDF is designed to lure the user into clicking the link, which then redirects to a malicious site to deliver a second-stage payload.

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-9186518-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-9186518-0
  • 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%B2%D0%BE+%D0%B2%D1%81%D0%B5+%D1%82%D1%8F%D0%B6%D0%BA%D0%B8%D0%B5+1+%D1%81%D0%B5%D0%B7%D0%BE%D0%BD+lostfilm+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D1%82%D0%BE%D1%80%D1%80%D0%B5%D0%BD%D1%82&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/7//4788/4788159_notuy__dlya__fortepiano_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4788/4788911_skachat__igru__alien_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4789/4789492_iphone__4___.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000599dc.bin
e8e85cc33c24f82a52af1ba19c26212d7f497a93442b986bd3f7930562b457f9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x599DC 9952 bytes
font_01_sfnt_off0005b6b6.bin
63c11f1a9fd4f8a42c68e98d510d742a83d73325a517522c8587b6ba6fd0f8fc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5B6B6 16868 bytes

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