Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 a729c505ee471cc8…

MALICIOUS

Office (OLE)

7.0 KB Created: 1997-03-11 20:49:00 Authoring application: Microsoft Word 6.0 First seen: 2012-06-14
MD5: 35e3b7608ea24a0fc64c983bad9e4c03 SHA-1: 5887faac189825229e250b109cf2645125d3e07e SHA-256: a729c505ee471cc8208d89759c8320c1ef9c73a73fe91b3ba4c2a98397a58fe1
80 Risk Score

Malware Insights

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

The sample is an OLE document containing legacy WordBasic auto-exec macro markers like 'AutoOpen'. The presence of 'Win.Trojan.Attention-4' detection and the auto-exec marker strongly suggest the document is designed to run malicious code upon opening. The document body contains strings that appear to be related to macro execution and potentially anti-analysis techniques.

Heuristics 2

  • ClamAV: Win.Trojan.Attention-4 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Win.Trojan.Attention-4
  • 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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