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

Static analysis result for SHA-256 d7d7d997085a94c9…

MALICIOUS

Office (OLE)

23.5 KB Created: 1994-09-05 09:03:00 Authoring application: Microsoft Word for Windows 95 First seen: 2012-06-14
MD5: edb9f5cac4a643e8954ea1d88b4fe157 SHA-1: 2514436ed0ee78b2fc83092566c5072ac3b34286 SHA-256: d7d7d997085a94c91aec2a6160c5c6d0749e8c357e13dfd53ee4aa1c590a4a36
80 Risk Score

Malware Insights

Win.Trojan.Niki-1 · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic

The critical ClamAV heuristic identified the file as Win.Trojan.Niki-1. The presence of a legacy WordBasic auto-exec marker, specifically 'AutoOpen', indicates that malicious code is intended to run automatically when the document is opened. This suggests a macro-based attack designed to execute arbitrary code.

Heuristics 2

  • ClamAV: Win.Trojan.Niki-1 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Win.Trojan.Niki-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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