Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 7d79576261af5d66…

MALICIOUS

Office (OLE) / .DOCX

208.8 KB Created: 2020-10-30 18:34:00 Authoring application: Microsoft Office Word
MD5: 45d8f47460aaac3c370724dc87905321 SHA-1: bd5f63d2970ee127c14d9c932a6bcb3712af3d8c SHA-256: 7d79576261af5d66d308763c8e18da5afd9c1454db488566a0749a5365ab18bc
202 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1566.001 Spearphishing Attachment T1059 Command and Scripting Interpreter T1203 Exploitation for Client Execution

The file is identified as malicious by ClamAV with the signature 'Doc.Downloader.EmotetRed02224-9938637-0', indicating it's a known downloader variant. High-severity heuristics confirm the presence of VBA macros, specifically a 'Document_Open' macro that uses 'CreateObject', a common technique for executing malicious code. The VBA script itself is heavily obfuscated but the presence of 'CreateObject' strongly suggests it's intended to download and execute a secondary payload.

Heuristics 6

  • ClamAV: Doc.Downloader.EmotetRed02224-9938637-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.EmotetRed02224-9938637-0
  • 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
035247075e717030c87eb1e7a35ad2ad2c8145cc7110257c5be024c0ffb99fb6		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 17340 bytes

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