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

Static analysis result for SHA-256 c93d3ceead93ce86…

MALICIOUS

Office (OLE)

16.0 KB Created: 1997-03-24 17:00:00 Authoring application: Microsoft Word for Windows 95 First seen: 2012-06-14
MD5: 17a1d2cea3518e6b6d5f6e5004f15c6d SHA-1: b6f8569521f71d70e88f29ade6d9170b07028dac SHA-256: c93d3ceead93ce866a75c77d744c3d990edf51d5fe20704392091a551854936b
80 Risk Score

Malware Insights

Win.Trojan.Mota-1 · confidence 90%

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

The sample is identified as Win.Trojan.Mota-1 by ClamAV. It contains legacy WordBasic macros, specifically an AutoOpen macro, which is a known technique for executing malicious code upon document opening. The document body contains text that appears to be a message from the malware author, referencing payload delivery and mentioning the filename 'C:\Mota!.doc'.

Heuristics 2

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