Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 ad1b46030e487bf2…

MALICIOUS

Office (OLE) / .DOCX

102.3 KB Created: 2020-09-29 17:52:00 Authoring application: Microsoft Office Word
MD5: 5b0c7835c6b719b3fc273edacc72c936 SHA-1: e094980fa5a07306e97a1b64caaa1a87cc2721cb SHA-256: ad1b46030e487bf2121ac7ad8bafa5d344299875966e3429fccf826931a7ef2c
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 VBA macros, specifically the Document_Open auto-execution and CreateObject calls, strongly indicate a malicious macro downloader. The presence of the 'Emotet' family in the ClamAV signature further supports this classification. The obfuscated document body text, while not directly readable, is consistent with lures used by Emotet to trick users into enabling macros. The primary function appears to be downloading and executing a secondary payload.

Heuristics 7

  • ClamAV: Doc.Downloader.Emotet-9769356-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-9769356-0
  • 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
77f0fc2bd0d5c985be4d4cb3501afb191ffadc98be204ef2c40c091585c5d90a
vba-macro oletools.olevba.extract_macros (decoded VBA source) 10395 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved macro source contains an auto-exec entry point and execution/download terms.