Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 6f76e8d427bd877a…

MALICIOUS

Office (OLE) / .DOCX

177.3 KB Created: 2020-10-20 22:39:00 Authoring application: Microsoft Office Word
MD5: 4303f9a576eb0d84d7fd426dce408716 SHA-1: 77433d1a1616dd6066244a80fabd671c2483ffbd SHA-256: 6f76e8d427bd877a03b66be298b0b65bb5f18bd6da31004cd3ae9fb343475aa4
202 Risk Score

Malware Insights

Emotet · confidence 95%

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

The file is identified as malicious by ClamAV with the signature 'Doc.Malware.Emotet-9781039-0', indicating a known Emotet variant. High-severity heuristics confirm the presence of VBA macros, specifically a Document_Open macro that uses CreateObject, suggesting an attempt to execute code upon opening. The VBA script itself is heavily obfuscated but its structure and the presence of CreateObject strongly imply it's designed to download and execute a second-stage payload.

Heuristics 6

  • ClamAV: Doc.Malware.Emotet-9781039-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Malware.Emotet-9781039-0
  • 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
130bc91dd8b5ad391a87daabf287b6e2ceed1d78136a29ff57bedf25aa736586		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 18991 bytes

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