Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 67f4162dc10c47db…

MALICIOUS

Office (OLE) / .DOCX

142.9 KB Created: 2020-09-29 09:08:00 Authoring application: Microsoft Office Word
MD5: d91fb2ff125079eac531e770b8f42aab SHA-1: d3a1f1ff72952fd26c8fae8107c8e6f8ddec31bb SHA-256: 67f4162dc10c47db346af7d6dec0455ff634c84a41fc9b29f42a2af6cddaa849
202 Risk Score

Malware Insights

Emotet · confidence 95%

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

The sample contains VBA macros, specifically a Document_Open macro that utilizes CreateObject, indicating malicious intent. ClamAV detection as 'Doc.Downloader.Emotet-9769137-0' strongly suggests the Emotet family. The VBA script's obfuscated nature and use of CreateObject point towards downloading and executing a secondary payload, a common Emotet behavior.

Heuristics 6

  • ClamAV: Doc.Downloader.Emotet-9769137-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-9769137-0
  • 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
2f5b3223d32b6b79c027453efef3c5410c27df5205b9cb2b32dd9a1e0304e007		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 8132 bytes

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