Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 65b3dea131ae4e55…

MALICIOUS

Office (OLE)

2.61 MB Created: 2004-03-29 22:32:10 Authoring application: Microsoft Excel
MD5: 98f347ac82ef99a8667b7117639c3a35 SHA-1: 322dcbf64a6b6ca970e048723d33d1e2caa4eb38 SHA-256: 65b3dea131ae4e556fa4f1af60f5b18a0e34d90917cda94a61657433d8e86e0c
70 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.005 Visual Basic T1105 Ingress Tool Transfer

The file is an Excel document containing VBA macros, indicated by the OLE_VBA_MACROS heuristic. The SE_INVOICE_LURE heuristic suggests a fake invoice pretext for user interaction. The OLE_VBA_CREATEOBJ heuristic points to the execution of VBA code, likely to download and execute a secondary payload, aligning with the Ingress Tool Transfer technique. No specific family could be identified.

Heuristics 4

  • CreateObject call high OLE_VBA_CREATEOBJ
    CreateObject call
  • VBA macros detected medium OLE_VBA_MACROS
    Document contains VBA macro code
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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.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/sharepoint/v3
    • 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.openxmlformats.org/officeDocument/2006/customXml

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
8a409a11125b4cb67409eda5daa09bb962fc621e583de618793c425af6687f32		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 88067 bytes

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