Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 a2b3de3e6d67d8b9…

MALICIOUS

Office (OLE) / .DOCX

223.5 KB Created: 2020-10-28 06:28:00 Authoring application: Microsoft Office Word
MD5: ef328afa40b77873aa321b7669020d7e SHA-1: 6e6623730855bcc2e5fe4cfc7d40307b4d474792 SHA-256: a2b3de3e6d67d8b984e20da13e2338fb10bb97088378f08537ed93228f6850e1
240 Risk Score

Malware Insights

Emotet · confidence 95%

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

The critical ClamAV detection and high-severity heuristics for OLE_VBA_DOCOPEN, OLE_VBA_CREATEOBJ, and OLE_VBA_PCODE_AUTOEXEC_EXEC strongly indicate malicious VBA macro execution. The Document_Open macro combined with CreateObject is a common pattern for Emotet to download and execute a second-stage payload. The detection name 'Doc.Malware.Emotet-9784450-1' directly attributes this to the Emotet family.

Heuristics 7

  • ClamAV: Doc.Malware.Emotet-9784450-1 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Malware.Emotet-9784450-1
  • 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
7f3b9de1e0285548916c28f6601d8d02c3123bdd009e8218f5871d9b0b89faf5
vba-macro oletools.olevba.extract_macros (decoded VBA source) 16327 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved macro source contains an auto-exec entry point and execution/download terms.