Malicious Office (OLE) / .27 — malware analysis report

Static analysis result for SHA-256 386d47de66d33d15…

MALICIOUS

Office (OLE) / .27

1.74 MB Created: 2004-09-23 02:45:39 Authoring application: Microsoft Excel
MD5: 84f93a0bd268064e768c6c9651f17500 SHA-1: c7ff470de153a9d099d977c6edfc7cbdaae99c4c SHA-256: 386d47de66d33d153cb0b03a2c11a0ef7e0a962c4e00ff9ef315b32f967ab282
120 Risk Score

Malware Insights

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

The file is an Office document containing VBA macros, with an Auto_Open macro specifically detected. The ClamAV heuristic identifies it as Doc.Macro.Laroux-5893719-0, indicating a known macro-based malware. The document body presents a survey form checklist, a common social engineering tactic to trick users into enabling macros. The presence of an Auto_Open macro strongly suggests the intent is to execute malicious code upon opening the document, likely for downloading a second-stage payload.

Heuristics 4

  • ClamAV: Doc.Macro.Laroux-5893719-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Macro.Laroux-5893719-0
  • Auto_Open macro high OLE_VBA_AUTO
    Auto_Open macro
  • VBA macros detected medium OLE_VBA_MACROS
    Document contains VBA macro code
  • 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.microsoft.com/sharepoint/v3/contenttype/forms
    • http://schemas.openxmlformats.org/officeDocument/2006/customXml
    • http://schemas.openxmlformats.org/officeDocument/2006/cusI
    • http://schemas.microsoft.com/office/2006/metadata/contentType
    • http://schemas.microsoft.com/office/2006/metadata/properties/metaAttributes
    • http://schemas.microsoft.com/office/2006/metadata/properties
    • http://www.w3.org/2001/XMLSchema
    • http://schemas.microsoft.com/office/2006/documentManagement/types
    • http://schemas.openxmlformats.org/package/2006/metadata/core-properties
    • http://www.w3.org/2001/XMLSchema-instance
    • http://purl.org/dc/elements/1.1/
    • http://purl.org/dc/terms/
    • http://schemas.microsoft.com/office/internal/2005/internalDocumentation
    • http://dublincore.org/schemas/xmls/qdc/2003/04/02/dc.xsd
    • http://dublincore.org/schemas/xmls/qdc/2003/04/02/dcterms.xsd
    • http://schemas.microsoft.com/office/2006/metadata/longProperties

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
a3e16a267e04136afa2c3feeda0c084fae415bacc098d4014a5dfa70b2cc243e		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 2352 bytes

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