Win.Trojan.Funfun-2 — Office (OLE) malware analysis

Static analysis result for SHA-256 f452e78beaaefc4f…

MALICIOUS

Office (OLE)

39.5 KB Created: 1998-01-17 03:28:00 Authoring application: Microsoft Word for Windows 95 First seen: 2012-06-14
MD5: 7152db46ddc2447b9acca897736047c6 SHA-1: f573c41f3d13e1706fc3fa1c6500d211d8236272 SHA-256: f452e78beaaefc4f3e287e2f6a70638d0912a250fcf4b6f39d3f482b45576181
80 Risk Score

Malware Insights

Win.Trojan.Funfun-2 · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic

The file is identified as malicious by ClamAV with the signature Win.Trojan.Funfun-2. It contains legacy WordBasic macros, specifically the AutoOpen macro, which is a known indicator for malicious execution. The document body contains obfuscated code and references to 'RunPayload', suggesting it's designed to download and execute a secondary payload, likely the 'power.scr' file.

Heuristics 2

  • ClamAV: Win.Trojan.Funfun-2 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Win.Trojan.Funfun-2
  • 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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