Win.Trojan.Gabi-1 — Office (OLE) malware analysis

Static analysis result for SHA-256 f2c9c9da04e506a3…

MALICIOUS

Office (OLE)

11.0 KB Created: 1997-12-31 17:52:00 Authoring application: Microsoft Word for Windows 95 First seen: 2012-06-14
MD5: 8df99be4bcaa740f5d32914b75b3801b SHA-1: 265004d9e18d97a2020177a44e05cb536c277bbf SHA-256: f2c9c9da04e506a39d53b90d53d9230b78c827e906c33ca843c856be27dcd327
80 Risk Score

Malware Insights

Win.Trojan.Gabi-1 · confidence 90%

MITRE ATT&CK
T1059.005 Visual Basic T1566.001 Spearphishing Attachment

The file is identified as Win.Trojan.Gabi-1 by ClamAV. Static analysis revealed legacy WordBasic macros, specifically an AutoClose macro, which is a known indicator of malicious intent for older Word documents. This macro is likely designed to execute automatically upon closing the document, potentially downloading and executing a secondary payload.

Heuristics 2

  • ClamAV: Win.Trojan.Gabi-1 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Win.Trojan.Gabi-1
  • Legacy WordBasic auto-exec macro marker medium OLE_LEGACY_WORDBASIC_AUTOEXEC
    OLE Word document contains a legacy WordBasic auto-execution marker such as AutoOpen, but no modern VBA project was recovered and no stronger macro-virus family marker was present. This is analyst-facing evidence for old Word macro execution surface, not a downloader or parser-CVE attribution by itself.

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