Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 a7b553fca587aa34…

MALICIOUS

Office (OLE)

12.5 KB Created: 1997-09-19 03:34:00 Authoring application: Microsoft Word 6.0 First seen: 2012-06-14
MD5: 9b0978965e1825754aa65fa87159f0fb SHA-1: f71e558d18cba2fa278ad592a20cb849b89c05b7 SHA-256: a7b553fca587aa3469fd6795318af49e173f696d4cfbbaba14be80d0a905ddf9
80 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic

The sample is an OLE document containing legacy WordBasic macros, indicated by the 'OLE_LEGACY_WORDBASIC_AUTOEXEC' heuristic firing on the 'AutoOpen' macro. This macro is designed to execute automatically when the document is opened, a common technique for initiating malicious actions. ClamAV also detected this file as Win.Trojan.Minimal-55, further supporting its malicious nature.

Heuristics 2

  • ClamAV: Win.Trojan.Minimal-55 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Win.Trojan.Minimal-55
  • 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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