Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 ab75dac487473eb4…

MALICIOUS

Office (OLE)

11.0 KB Created: 1997-10-13 17:49:00 Authoring application: Microsoft Word for Windows 95 First seen: 2012-06-14
MD5: 3427315dbf611cd2d720f9477c0e0eee SHA-1: 5b58e8e41faa552d47081784cecf665990a1b5fc SHA-256: ab75dac487473eb4288e532d7409c2a4fdf6691d65da8088e242ed896891c51d
80 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic

The file is identified as malicious by ClamAV with the signature Win.Trojan.Horn-1. Static analysis revealed a legacy WordBasic macro marker 'AutoOpen' within the document's metadata and body. This macro is designed to execute automatically when the document is opened, indicating a likely attempt to run malicious code.

Heuristics 2

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