Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 d42f98d8e6d98d44…

MALICIOUS

Office (OLE)

13.5 KB Created: 1999-07-18 21:25:00 Authoring application: Microsoft Word 6.0 First seen: 2012-06-14
MD5: 9bfc302ef451f7747d79ecfe6088a7d6 SHA-1: 9248955589bbf5399c0318dd725ac62e87892f5e SHA-256: d42f98d8e6d98d441733f1b774bfefd4e81350b45ae5293652bf8fde132d5097
80 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic

The critical ClamAV heuristic indicates this is a known malicious file (Win.Trojan.C-72). The presence of a legacy WordBasic `AutoOpen` macro marker, combined with the document body text describing a "MacrEngine" for creating viruses, strongly suggests the intent is to execute malicious macro code. The macro appears to be designed to present a user interface for virus creation, likely as a lure to execute its own malicious payload.

Heuristics 2

  • ClamAV: Win.Trojan.C-72 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Win.Trojan.C-72
  • 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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