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

Static analysis result for SHA-256 3f38a54c1df8ad8e…

MALICIOUS

Office (OLE) / .DOCX

957.5 KB Created: 2001-04-06 08:07:00 Authoring application: Microsoft Office Word
MD5: f52987eaa01f79394112d6ac05e24bd5 SHA-1: 5b7c455ee45c0427c356f5144d4c4dfd24b7df92 SHA-256: 3f38a54c1df8ad8e15df92e9b03647a205795c1ab80d123e3e181712523b699c
260 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic T1059.003 Windows Command Shell

The sample contains a significant amount of VBA macro code, with critical heuristics indicating the use of Shell() and WScript.Shell. This strongly suggests the document is designed to execute arbitrary commands on the user's system. The presence of `macros.bas` and the `OLE_VBA_MACROS` heuristic further support this. No malicious URLs were extracted, but the primary attack vector is clear.

Heuristics 7

  • 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
  • CreateObject call high OLE_VBA_CREATEOBJ
    CreateObject call
  • 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
    • http://tycho.usno.navy.mil/sidereal.html

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
173914fbc3afc60e33a91b92899c538fd7437a40857f6b0765ce67f37c219a85		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 44710 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 3 shell/COM execution token(s). Carved macro source contains an auto-exec entry point and execution/download terms.

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