Win.Trojan.Bumblebee-1 — Office (OLE) malware analysis

Static analysis result for SHA-256 9fb6808939a6d098…

MALICIOUS

Office (OLE)

13.5 KB Created: 1999-06-12 13:42:00 Authoring application: Microsoft Word for Windows 95 First seen: 2012-06-14
MD5: df9d6c8d80a69481b7433548bcc2d020 SHA-1: 37989c3420be2495276c6106f77e8f12c4b8e00a SHA-256: 9fb6808939a6d098d0c8e897279661fa3c568fb97bf3791f28698f087819144f
80 Risk Score

Malware Insights

Win.Trojan.Bumblebee-1 · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic

The file is identified as a legacy Word document containing a WordBasic AutoOpen macro, indicated by the OLE_LEGACY_WORDBASIC_AUTOEXEC heuristic. ClamAV detection confirms this as Win.Trojan.Bumblebee-1. The document body contains strings that appear to be remnants of macro code or debugging information, but no clear malicious instructions are directly readable. The presence of the AutoOpen marker strongly suggests an attempt to execute malicious code automatically when the document is opened.

Heuristics 2

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