Malicious PDF — malware analysis report

Static analysis result for SHA-256 fb2b2185e55f82cb…

MALICIOUS

PDF

360.4 KB Created: 2015-08-23 20:59:48 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 8b130b5d5fb504f415949d1bbec15226 SHA-1: 6380638a659f691dfb3374c45c2939b5a4a89264 SHA-256: fb2b2185e55f82cbacb9068a103f56820f198e24affa963439e29c729a51bbb0
120 Risk Score

Malware Insights

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

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 malicious infrastructure. The document body, though heavily obfuscated, appears to be a lure for a 'creation kit' to entice users to click the malicious link.

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-9263271-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-9263271-0
  • 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=creation+kit+%D0%B4%D0%BB%D1%8F+skyrim+193208+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+rus&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/6//4690/4690112_adobe__illustrator__cs5_.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4690/4690109_skachat__cs__16_.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4690/4690069_skachat__knigu__fb_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000551fc.bin
67f6cd4be553e619c1b68ff7512dc99fce2e770ec262df90d12ea37b56739928		 pdf-font-stream PDF embedded font (sfnt) at offset 0x551FC 10284 bytes
font_01_sfnt_off00056e91.bin
7f908456885855fb1e91b9549225fdf53ddf6f6f305d55502832c9d21affecd7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x56E91 16952 bytes

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