Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 4993a5e3bb725688…

MALICIOUS

Office (OLE)

12.0 KB Created: 1997-02-19 15:51:00 Authoring application: Microsoft Word for Windows 95 First seen: 2012-06-14
MD5: 7e8e6cd2ac5a4ffdd2dd4409d7617a7a SHA-1: 9b7197e45a88bf58bb0d369610a1ca7e117d0032 SHA-256: 4993a5e3bb725688be27cf39494fc23cf8dd0428bfc1e5f1ae8fd3bbdc0c4950
80 Risk Score

Malware Insights

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

The sample is identified as malicious by ClamAV with the signature Win.Trojan.Atom-7. Static analysis revealed a legacy WordBasic AutoOpen macro, which is a common technique for executing malicious code upon document opening. The document body explicitly states 'This is a Macro Goat File. Infected with Atom.B', further indicating malicious intent and potential infection by the Atom family.

Heuristics 2

  • ClamAV: Win.Trojan.Atom-7 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Win.Trojan.Atom-7
  • 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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