Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 75fc04acda64a9e1…

MALICIOUS

Office (OLE) / .DOCX

159.8 KB Created: 2020-12-28 20:57:00 Authoring application: Microsoft Office Word
MD5: 80d3b3c44aafc79c98d8d5f4d5ffa136 SHA-1: 294c19006cf422e46ac8f0523c085c0e32a7e157 SHA-256: 75fc04acda64a9e1abda8390390af81b5c9a1aca63b07e6e3d710ca3c97924bd
202 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1566.001 Spearphishing Attachment T1204.002 Malicious File

The sample is a Microsoft Office document with a high-confidence detection for VBA macros, specifically a Document_Open macro that uses CreateObject. This indicates the macro is designed to execute automatically when the document is opened. The ClamAV detection name 'Doc.Downloader.EmotetRed02224-9938637-0' strongly suggests the Emotet family and a downloader functionality. The VBA script attempts to open and read binary files from local paths, which is likely part of a payload retrieval or execution chain.

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
fc28b021e7c13690bd05b8fda29444b887d0bad8d106819ca318299d8abb8857		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 6085 bytes

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