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

Static analysis result for SHA-256 390148f5157c0f6b…

MALICIOUS

Office (OLE) / .DOC

665.5 KB Created: 2026-03-21 07:10:00 Authoring application: Microsoft Office Word First seen: 2026-06-04T05:00:00+00:00
MD5: caac47be757eddd0d36976c0f6e99962 SHA-1: d2f47e427a5705ccb158012e2c6dbae3d5c37a21 SHA-256: 390148f5157c0f6b337ff19d162c3c2ee3e6d782fdfbe11fb1e411c0684fd33b
462 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic T1204.002 Malicious File T1566.001 Spearphishing Attachment

The sample contains VBA macros that execute upon opening the document. The `Document_Open` subroutine calls `RunMainProcess`, which attempts to download and save two files, 'ssr.txt' and 'F260402.txt', from the URLs `https://timely-puffpuff-dc7879.netlify.app/ssr.txt` and `https://timely-puffpuff-dc7879.netlify.app/tusop.txt` respectively, into the `C:\ProgramData\` directory. The presence of `ShellExecute` and `cmd.exe` calls indicates an attempt to execute downloaded payloads, likely leading to further malicious activity.

Heuristics 12

  • Shell() call in VBA critical OLE_VBA_SHELL
    Shell() call in VBA
  • WScript.Shell usage critical OLE_VBA_WSCRIPT
    WScript.Shell usage
  • Reference to ShellExecute API high SC_STR_SHELLEXEC
    Reference to ShellExecute API
  • Suspicious cmd.exe invocation with execution flag high SC_STR_CMD
    Suspicious cmd.exe invocation with execution flag
  • Reference to Windows Script Host high SC_STR_WSCRIPT
    Reference to Windows Script Host
  • Document_Open macro high OLE_VBA_DOCOPEN
    Document_Open macro
  • Workbook_Open macro high OLE_VBA_WBOPEN
    Workbook_Open macro
  • CreateObject call high OLE_VBA_CREATEOBJ
    CreateObject call
  • cmd.exe reference in VBA high OLE_VBA_CMD
    cmd.exe reference in VBA
  • 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 https://app.box.com/index.php?rm=box_download_shared_file&shared_name=kq8b1z5j8m9gcn7o0s6o4vjqp6mzzhoe&file_id=f_1958873893320
    • http://schemas.openxmlformats.org/drawingml/2006/main
    • http://schemas.openxmlformats.org/officeDocument/2006/bibliography
    • http://schemas.openxmlformats.org/officeDocument/2006/customXml
    • https://timely-puffpuff-dc7879.netlify.app/tusop.txt�
    • https://timely-puffpuff-dc7879.netlify.app/ssr.txt�
    • https://timely-puffpuff-dc7879.netlify.app/ssr.txt
    • https://timely-puffpuff-dc7879.netlify.app/tusop.txt

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
6c5ed43382241c8c3094532ae2641106e95265ab266ecd1927cce15f555f1c41		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 15619 bytes

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