Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 a556f655a5fe240f…

MALICIOUS

Office (OLE) / .DOCX

162.3 KB Created: 2020-10-16 14:09:00 Authoring application: Microsoft Office Word
MD5: fad1ef2ddb93719cf505937ed07e59ae SHA-1: c2864503865b6c1fb763b8e1597778225ea5c13f SHA-256: a556f655a5fe240f6e969c6e0c449f47d357b453c5940205ce2d867f7ca64e4e
240 Risk Score

Malware Insights

Emotet · confidence 95%

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

The critical ClamAV detection and high-severity heuristics for OLE_VBA_MACROS, OLE_VBA_DOCOPEN, OLE_VBA_CREATEOBJ, and OLE_VBA_PCODE_AUTOEXEC_EXEC strongly indicate malicious VBA macro execution. The presence of a 'Document_Open' macro that uses 'CreateObject' is a common Emotet delivery technique. This macro is designed to execute automatically when the document is opened, likely to download and execute a secondary payload.

Heuristics 7

  • ClamAV: Doc.Malware.Emotet-9778566-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Malware.Emotet-9778566-0
  • 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
29095f417e940309e4c3b74017a13ff70f85d23507d6b5296a03fa98c635a78b
vba-macro oletools.olevba.extract_macros (decoded VBA source) 15315 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved macro source contains an auto-exec entry point and execution/download terms.