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

Static analysis result for SHA-256 e629bbd6a5b5c253…

MALICIOUS

Office (OLE) / .DOC

35.5 KB Created: 2024-12-06 15:08:00 Authoring application: Microsoft Office Word
MD5: df7222411a3a5c18e0d8fb28befb5ed7 SHA-1: 3680092dcd1918b0f0d11c9d2500db6c161956cb SHA-256: e629bbd6a5b5c253f38cea38d156d81e0f0e391b7e7618ff275e31fa0d3a34c6
340 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic T1059.001 PowerShell T1204.002 Malicious File

The sample is a malicious DOC file containing VBA macros. The critical heuristics indicate the use of WScript.Shell and a Shell() call within a Document_Open macro, suggesting the execution of arbitrary commands. The extracted artifact 'macros.bas' is a VBA macro that likely downloads and executes a second-stage payload, which is a common attack pattern for macro-enabled documents.

Heuristics 9

  • Shell() call in VBA critical OLE_VBA_SHELL
    Shell() call in VBA
  • WScript.Shell usage critical OLE_VBA_WSCRIPT
    WScript.Shell usage
  • Reference to Windows Script Host high SC_STR_WSCRIPT
    Reference to Windows Script Host
  • Document_Open macro high OLE_VBA_DOCOPEN
    Document_Open macro
  • CreateObject call high OLE_VBA_CREATEOBJ
    CreateObject call
  • 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.
  • Suspicious extracted artifact high EXTRACTED_FILE_STATIC_TRIAGE
    One or more files extracted from inside this sample matched static suspicious-content checks such as script obfuscation, encoded payload blobs, packed data, or execution/download terms.
  • 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.openxmlformats.org/drawingml/2006/main

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
90e0b16eee98d966e2f4a906c30b67b896ffe5fb2d5a985eb5b019afaa4981d8		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 6814 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 1 shell/COM execution token(s). Carved macro source contains an auto-exec entry point and execution/download terms.

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