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

Static analysis result for SHA-256 ef60313fe7494cd3…

MALICIOUS

Office (OLE) / .DOCX

229.5 KB Created: 2004-05-31 06:37:00 Authoring application: Microsoft Word 9.0
MD5: 4df589e1d0d37c53c409af08932d503d SHA-1: 2dbfedf7081a904644395e56c848cb16228896a0 SHA-256: ef60313fe7494cd34d7413313063dcf09c19bee1223586189524c6634b4595f3
120 Risk Score

Malware Insights

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

The document presents itself as a text utility for font conversion and date insertion, likely to entice the user to enable macros. The presence of VBA macros and a high-severity heuristic firing for ShellExecute API usage indicates that the macros are designed to execute arbitrary commands. The Auto_Open macro specifically triggers execution via Shell, suggesting it downloads and executes a second-stage payload. The extracted artifact 'macros.bas' is the VBA macro source.

Heuristics 4

  • Reference to ShellExecute API high SC_STR_SHELLEXEC
    Reference to ShellExecute API
  • 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
  • Suspicious extracted artifact medium 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.

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
b0b61b294f63fb07f8de037e3e51a74656567e66aed640985bef9f793f1ba5b0
vba-macro oletools.olevba.extract_macros (decoded VBA source) 171144 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 7 shell/COM execution token(s).