Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 7fef2f36b6470391…

MALICIOUS

Office (OLE) / .DOCX

155.3 KB Created: 2020-12-30 13:16:00 Authoring application: Microsoft Office Word
MD5: 0d0cdc3fffdbe3a033f7fcd3e0bfbb77 SHA-1: adb04776c5db95b2fef40bfbf29e6abe06ac7d9d SHA-256: 7fef2f36b64703910def4f6a15cfe314b2ac2f9691465ecd3999a29daf6b25c7
202 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1566.001 Spearphishing Attachment T1105 Ingress Tool Transfer

The sample is a Microsoft Office document containing VBA macros, specifically a Document_Open macro that utilizes CreateObject to execute. ClamAV detection identifies it as 'Doc.Downloader.EmotetRed02224-9938637-0', strongly suggesting the Emotet family. The VBA script attempts to create and write to files on disk, indicating a downloader functionality. The obfuscated nature of the script and the truncated evidence prevent a more detailed analysis of the payload, but the overall pattern is consistent with Emotet's typical behavior of downloading and executing further malicious content.

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
56a4885fb35696e61eb89c4193c6dbd09786b2db28cac633c3290a9c612d3393		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 6670 bytes

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