Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 e9c5160ecd59063e…

MALICIOUS

Office (OLE)

120.0 KB First seen: 2019-11-20
MD5: ac5baf52246ac4b566688103523d753d SHA-1: 5fc28c191ca84d70e955e58ff7f049c4c58f0925 SHA-256: e9c5160ecd59063efc40b59092b0aecb4c903de9ee1018cb55f66dd34922e015
84 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic

The file is identified as malicious by ClamAV with the signature Doc.Dropper.Agent-6566507-0. A legacy WordBasic auto-exec marker (Autoopen) was detected, indicating an attempt to leverage old macro functionality for execution. However, VBA macros could not be extracted due to an unsupported format, limiting further analysis of the execution chain.

Heuristics 4

  • ClamAV: Doc.Dropper.Agent-6566507-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Dropper.Agent-6566507-0
  • 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.
  • Unsupported Office format for VBA extraction info OFFICE_FORMAT_UNSUPPORTED
    olevba could not extract VBA macros (TypeError); format-agnostic byte-level scans still ran. Likely legacy, encrypted, or malformed OLE/OOXML — re-scanning the same bytes will yield the same outcome.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://schemas.openxmlformats.org/drawingml/2006/main In document text (OLE body)

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