Win.Trojan.Dementia-4 — Office (OLE) malware analysis

Static analysis result for SHA-256 2fc5109a714b6f53…

MALICIOUS

Office (OLE)

8.0 KB First seen: 2015-09-29
MD5: 82b035717ec9cb0dd12b66d1fb2b0110 SHA-1: 191ccf334b895873bc5014c67f93e50de756f27b SHA-256: 2fc5109a714b6f53414df753334d051a64c598af98ebc8b54ebae2b07f16087e
100 Risk Score

Malware Insights

Win.Trojan.Dementia-4 · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic

The sample exhibits characteristics of a legacy macro virus, specifically identified as 'Win.Trojan.Dementia-4'. The presence of 'RSN MACRO VIRUS' markers and the explicit mention of 'Dementia' in the document body, along with the inclusion of AutoOpen and AutoClose subroutines, strongly indicate an attempt to execute malicious code upon document interaction. These elements suggest the file is designed to spread or perform malicious actions through macro execution.

Heuristics 2

  • ClamAV: Win.Trojan.Dementia-4 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Win.Trojan.Dementia-4
  • Legacy WordBasic macro-virus markers high OLE_LEGACY_WORDBASIC_MACRO_VIRUS
    OLE Word document contains legacy WordBasic auto-execution macro markers such as AutoOpen plus ToolsMacro/MacroFile/fileMacro/globMacro or named historical macro-virus strings. These old Word 6/95 macro forms are not exposed as a modern VBA project, so normal VBA source extraction can miss them.

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