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

Static analysis result for SHA-256 d86201e2c866b639…

MALICIOUS

Office (OLE) / .DOC

148.0 KB Created: 2021-09-23 00:23:00 Authoring application: Microsoft Office Word
MD5: e17513a1cc78521ab59b5f0f73becd8e SHA-1: bf31863a68b6e6f3a25a29173797595b45be7aa1 SHA-256: d86201e2c866b6397ce6669163b796793c77580f05c2243e369ac73a46d30b63
102 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic T1059.001 PowerShell

The document contains a VBA macro that is triggered by the 'document_open' event. This macro writes content to a file named 'msWordAccess.hta' and then executes it using WshShell.run. The content written to the HTA file is derived from the document's body, suggesting a downloader or initial execution stage. The macro's execution of an HTA file indicates an attempt to run a second-stage payload.

Heuristics 4

  • Document_Open macro high OLE_VBA_DOCOPEN
    Document_Open macro
  • VBA p-code auto-exec with execution tokens high OLE_VBA_PCODE_AUTOEXEC_EXEC
    Compiled VBA/cache stream contains an auto-execution token together with shell/download/object-execution tokens. This catches p-code-only or source-extraction-failure macro documents where visible source is unavailable.
  • 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://ns.adobe.com/xap/1.0/
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/photoshop/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/sType/ResourceEvent#
    • http://ns.adobe.com/xap/1.0/sType/ResourceRef#
    • http://schemas.openxmlformats.org/drawingml/2006/main

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
fb446e07b395aa2b6e24c213dc859f18f80a654c2cd9b1dbbe3b19a35c7d1846
vba-macro oletools.olevba.extract_macros (decoded VBA source) 723 bytes