Win.Trojan.Dzt-4 — Office (OLE) malware analysis

Static analysis result for SHA-256 7ea57b304c9ef0d4…

MALICIOUS

Office (OLE)

18.5 KB Created: 1997-03-10 14:22:00 Authoring application: Microsoft Word 6.0 First seen: 2012-06-14
MD5: 0a477b32985f5dbb7325dc35e9c7e920 SHA-1: ef8ae1bdde64b7294472db6850738f98700cfc41 SHA-256: 7ea57b304c9ef0d492867689a876044739af0ba3dc5bf159d6470fb699f8843c
80 Risk Score

Malware Insights

Win.Trojan.Dzt-4 · confidence 90%

MITRE ATT&CK
T1059.005 Visual Basic

This legacy Word document contains a WordBasic macro that triggers on FileSaveAs and AutoOpen events. The macro is designed to save a copy of the document, likely to facilitate the spread of the DZT virus as indicated by the ClamAV detection and the document's own metadata.

Heuristics 2

  • ClamAV: Win.Trojan.Dzt-4 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Win.Trojan.Dzt-4
  • 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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