Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 c990dee21761a8d4…

MALICIOUS

Office (OLE) / .DOCX

189.3 KB Created: 2020-09-29 13:18:00 Authoring application: Microsoft Office Word
MD5: 75e07b7e08ace55bbfd1dee68b80b1d9 SHA-1: cef95dfb46e21cc17bb256cdecc50e441764fefc SHA-256: c990dee21761a8d47380f5723bded194277cbdda478ea5c65704ba7bdd575e59
240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1566.001 Spearphishing Attachment T1059.001 PowerShell

The file contains VBA macros, specifically a Document_Open auto-execution macro, which is a strong indicator of malicious intent. The ClamAV detection explicitly names this as Emotet. The macro likely uses CreateObject to execute further malicious code, a common technique for downloading and running second-stage payloads. The obfuscated document body content appears to be an attempt to disguise the malicious nature of the document.

Heuristics 7

  • ClamAV: Doc.Malware.Emotet-9769343-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Malware.Emotet-9769343-0
  • 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
3466a25e0ec8edf0a3d6ff61e66e8183246c716be04ca7cccaa39032367b5dbf
vba-macro oletools.olevba.extract_macros (decoded VBA source) 10303 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved macro source contains an auto-exec entry point and execution/download terms.