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

Static analysis result for SHA-256 3106e90067456404…

MALICIOUS

Office (OLE) / .DOC

195.5 KB Created: 2024-12-09 06:54:00 Authoring application: Microsoft Office Word
MD5: 13326ed69d36aaa385c5eba9fa6e5cc2 SHA-1: 66946fa69204b91787c7eabb91c1fd8452b1cc24 SHA-256: 3106e90067456404a9f3e768ce3b60de6ae91fa2be664255ad6fe86c3f87e67d
340 Risk Score

Malware Insights

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

The sample contains VBA macros, including a Document_Open macro that utilizes WScript.Shell to execute arbitrary code. This strongly suggests the document is designed to download and run a secondary payload. The presence of the 'macros.bas' artifact further supports this analysis.

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
b28bf3856cb6d31871c3ffb9e35bd834e2a8728e18cc5557ccccf71d956ec651		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 27459 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 2 shell/COM execution token(s). Carved macro source contains an auto-exec entry point and execution/download terms.

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