Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 072b389b119cdd6e…

MALICIOUS

Office (OLE) / .DOCX

171.0 KB Created: 2020-10-21 13:56:00 Authoring application: Microsoft Office Word
MD5: 589f6c36a1002d55d5ad43df0d9cd1a4 SHA-1: 662bbd7a22f154fce4a773052d1c291353162ef4 SHA-256: 072b389b119cdd6e5ffdb135b093e5660a2a72bbd2f2bd85d54da961d78076b5
202 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1566.001 Spearphishing Attachment T1140 Deobfuscate/Decode Files or Information

The sample contains VBA macros, including a Document_Open auto-execution macro, which is a common characteristic of Emotet droppers. The ClamAV detection name 'Doc.Dropper.EmotetUpdate1020-9778523-0' further supports this attribution. The obfuscated VBA script likely attempts to download and execute a secondary payload, a typical behavior for this malware family.

Heuristics 6

  • ClamAV: Doc.Dropper.EmotetUpdate1020-9778523-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Dropper.EmotetUpdate1020-9778523-0
  • 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.
  • 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
113d36c64715b3a3694b52821b832bd3a24df7013a1eebeaaceb4571875cbc4c
vba-macro oletools.olevba.extract_macros (decoded VBA source) 23319 bytes