Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 724613c782464a82…

MALICIOUS

Office (OLE)

120.9 KB Created: 2018-10-03 10:13:00 Authoring application: Microsoft Office Word First seen: 2019-08-04
MD5: 3c7d8a34dfb94bb3cce4398c1bf3a634 SHA-1: c7608c4a3d3e4ff356f1ef33cd0242f3c0a5b875 SHA-256: 724613c782464a8292e0aedaa3af7d4f2a30146c3d68a59cbd53a0a670f7f440
84 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic

The file is identified as malicious by ClamAV and contains a marker for a legacy WordBasic auto-exec macro (AutoOpen). Although VBA extraction failed, the presence of the AutoOpen marker strongly suggests an attempt to run malicious code when the document is opened. The document body content is not indicative of a specific lure.

Heuristics 4

  • ClamAV: Doc.Malware.00536d-6705831-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Malware.00536d-6705831-0
  • 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 (AssertionError); 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)