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

Static analysis result for SHA-256 ec97bace89ad8e09…

MALICIOUS

Office (OLE) / .DOCX

1.77 MB Created: 2025-12-15 08:52:00 Authoring application: Microsoft Office Word First seen: 2026-02-25
MD5: ffd9c0245e68939549ce0e3a1e15fdb4 SHA-1: 2993b0ab9786ddc29eb9cf1ace4a28c6e34ea4fb SHA-256: ec97bace89ad8e09a44d22e148730c95bcb7212fcd5b7382730af00b4c38ab9e
482 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell T1059.003 Windows Command Shell T1204.002 Malicious File T1566.001 Spearphishing Attachment T1105 Ingress Tool Transfer

The sample contains VBA macros that utilize WScript.Shell to execute a command. Specifically, it reconstructs the command 'cmd.exe /c C:\ProgramData\CertificationKit.ini' and runs it. This indicates the macro's purpose is to launch an external process, likely to download and execute a secondary payload from the specified path. The presence of 'Document_Open' and 'Shell()' calls, along with the ClamAV detection for a dropper, strongly suggests this malicious behavior.

Heuristics 12

  • Shell() call in VBA critical OLE_VBA_SHELL
    Shell() call in VBA
  • WScript.Shell usage critical OLE_VBA_WSCRIPT
    WScript.Shell usage
  • ClamAV: Doc.Dropper.HexEncodedEXEHeader-9789587-1 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Dropper.HexEncodedEXEHeader-9789587-1
  • 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
  • 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.
  • 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/officeDocument/2006/
    • http://schemas.openxmlformats.org/officeDocument/2006/bibliography
    • http://schemas.openxmlformats.org/officeDocument/2006/customXml
    • http://schemas.openxmlformats.org/drawingml/2006/main

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
c9cd949be6b14abdef349fc947a13d854399c912d852930cbdd6098f6a577efe		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 3271 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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