Emotet — Office (OLE) / .DOC malware analysis

Static analysis result for SHA-256 83977121b9e97f87…

MALICIOUS

Office (OLE) / .DOC

159.0 KB Created: 2020-10-26 20:02:00 Authoring application: Microsoft Office Word
MD5: 017a096d69e2fa8dda277166189fb180 SHA-1: 256365ced8e09f4b54313744b78deab2f52f38c6 SHA-256: 83977121b9e97f87d650fe12845d19e59c28ab763af8051d755ea26ca2ae9821
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 file is a malicious Office document containing VBA macros, specifically a Document_Open macro that uses CreateObject, indicating it's designed to execute code. ClamAV identifies it as 'Doc.Downloader.Emotet-9784039-0', strongly suggesting the Emotet family. The VBA script is heavily obfuscated but its structure and the presence of CreateObject point towards downloading and executing a secondary payload.

Heuristics 6

  • ClamAV: Doc.Downloader.Emotet-9784039-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-9784039-0
  • 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
25a58c4e712d1085864e82f7ab775526ec6adf7a6a7c9b5168c373897e87509d
vba-macro oletools.olevba.extract_macros (decoded VBA source) 15931 bytes