Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 b13ca38004dd30e4…

MALICIOUS

Office (OLE)

10.0 KB First seen: 2012-06-14
MD5: 931c2f24e8198d91c36aa7c8496ef795 SHA-1: 2808c4655e8da40fe4687c7b194146ed5be4ce1b SHA-256: b13ca38004dd30e4b376ec87acf799dfa79c083cfe562ce4f18ea2c223bc2561
100 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic

The sample exhibits characteristics of a legacy macro virus, specifically identified by 'RSN MACRO VIRUS' markers and the presence of WordBasic macro virus indicators. The document body contains numerous embedded strings and file paths, likely intended to obfuscate the malicious nature of the macro. While no specific payload execution is detailed, the presence of these legacy indicators strongly suggests malicious intent.

Heuristics 2

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