Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 6420b73153baa8bc…

MALICIOUS

Office (OLE) / .DOCX

212.2 KB Created: 2020-12-22 18:13:00 Authoring application: Microsoft Office Word
MD5: ecca9eb05149fcdbbb7cd25f71aafd52 SHA-1: a5d29ace2a51cd58c44a11aa9bfe63df8cc6b683 SHA-256: 6420b73153baa8bc93494e5f2cac6f1248c102e7bfccb497d71bc67791603ca3
202 Risk Score

Malware Insights

Emotet · confidence 95%

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

The sample is a Microsoft Word document with a high-confidence detection for VBA macros, specifically a Document_Open macro that uses CreateObject to execute code. ClamAV identifies this as Doc.Downloader.EmotetRed02224-9938637-0, a known Emotet downloader variant. The VBA macro likely downloads and executes a second-stage payload from a remote source, a common Emotet infection vector.

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
8962e4bb9060366f196bbaa9086a3c9775784f792d9952a2d2a973cddd73b89c		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 15531 bytes

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