Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 2ba657b9a4938c2c…

MALICIOUS

Office (OLE)

60.0 KB Created: 2010-02-10 15:15:00 Authoring application: Microsoft Word 10.1
MD5: d7dfd8f5bf9d9ac42fdf80de8b484cec SHA-1: 17e40c6a5ea143039779cdface2e2c0f6f0a3e16 SHA-256: 2ba657b9a4938c2c327c9e2bd51a87ffe36d02e84d6615ba3120b3a032702d01
180 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic for Applications

The sample is a Microsoft Word document containing VBA macros, specifically a Document_Open macro, which is a common delivery mechanism for malware. The document body presents a fake registration form for a field hockey league, likely to trick the user into enabling macros. The ClamAV detection 'Doc.Trojan.Thus-10' further confirms its malicious nature. No specific malware family could be identified, but the presence of macros and the lure suggest a downloader or droppper.

Heuristics 5

  • ClamAV: Doc.Trojan.Thus-10 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Trojan.Thus-10
  • ClamAV detection on extracted artifact critical EXTRACTED_FILE_CLAMAV
    ClamAV flagged at least one file extracted from inside this sample. Even when the wrapping document carries no AV detection of its own, a hit on the carved artifact is a strong indicator the sample is a delivery vehicle.
  • Document_Open macro high OLE_VBA_DOCOPEN
    Document_Open macro
  • VBA macros detected medium OLE_VBA_MACROS
    Document contains VBA macro code
  • 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://www.sportsplexpa.com
    • http://www.eventhockey.com
    • http://ns.adobe.com/xap/1.0/
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://ns.adobe.com/iX/1.0/
    • http://ns.adobe.com/xap/1.0/mm/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
0d075ffd1c7cf16d58b8d4fb43c47c8f34c8314fd2e9a739d329480f2ba2d2e6		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 2290 bytes
Detection
ClamAV: Doc.Trojan.Thus-10
Obfuscation or payload: unlikely

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