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

Static analysis result for SHA-256 ff14f040db087085…

MALICIOUS

Office (OLE)

14.0 KB Created: 1997-11-23 17:47:00 Authoring application: Microsoft Word for Windows 95 First seen: 2012-06-14
MD5: 363f792f4f6cd2dbf9a0e3fdd58f41d3 SHA-1: 93760562e61a606fecee8734515298d29dd4fd58 SHA-256: ff14f040db0870858b224df188e17b185d9b60b4ffb6ec8603b84ab6e63f5891
80 Risk Score

Malware Insights

Win.Trojan.Thebman-1 · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1566.001 Spearphishing Attachment

The file is identified as Win.Trojan.Thebman-1 by ClamAV. It contains legacy WordBasic macros, specifically an 'autoopen' macro, which is a common technique for executing malicious code upon opening the document. The document body explicitly instructs the user on how to prepare the macro for execution, indicating a lure to trick the user into enabling malicious content.

Heuristics 2

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