Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 f1c00bf538d7b103…

MALICIOUS

Office (OLE)

112.8 KB Created: 2018-10-03 10:50:00 Authoring application: Microsoft Office Word First seen: 2019-05-16
MD5: f6c858b96631e2d12647ec224ecbf352 SHA-1: 0699cdb1906f37e20d728981a84b7a4753c55f18 SHA-256: f1c00bf538d7b103feb62fbaa9c2a007dc13cba35145a49da53009d4429b8425
84 Risk Score

Malware Insights

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

The file is identified as malicious by ClamAV. A legacy WordBasic AutoOpen macro was detected, indicating an attempt to execute malicious code upon opening the document. Due to issues with VBA extraction, the specific payload could not be determined, leading to an unknown family classification.

Heuristics 4

  • ClamAV: Doc.Malware.00536d-6705955-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Malware.00536d-6705955-0
  • 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)

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