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

Static analysis result for SHA-256 a78581a2ae61c15f…

MALICIOUS

Office (OLE)

10.5 KB Created: 1995-12-22 13:32:00 Authoring application: Microsoft Word 6.0 First seen: 2012-06-14
MD5: 3bc5c6eb0e23c828f9085e17d118c7e3 SHA-1: 6103f47971f4fc8d67c23bfc00522fdd0566f838 SHA-256: a78581a2ae61c15f04185147aa2ad784def5721c6bba277e1b70a064522c50d6
80 Risk Score

Malware Insights

Win.Trojan.GreenFury-1 · confidence 90%

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

The critical ClamAV heuristic identifies the sample as Win.Trojan.GreenFury-1. A legacy WordBasic auto-exec marker, 'AutoOpen', was detected, indicating the document is designed to run malicious code upon opening. This suggests a macro-based attack, likely a spearphishing attachment, intended to download and execute a secondary payload.

Heuristics 2

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