Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 002abd42f4729592…

MALICIOUS

Office (OLE) / .DOCX

149.6 KB Created: 2020-09-29 07:27:00 Authoring application: Microsoft Office Word
MD5: 596ab0ab9952ff3f81e1e8e11b26c22a SHA-1: 86861b5ca3c1871dc2206e37b4e3f0436f2d80dc SHA-256: 002abd42f47295922170364265dfd091b7698deba1e4744976f956a85f882b4c
202 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1105 Ingress Tool Transfer

The sample contains VBA macros, including a Document_Open auto-execution macro, which is a common delivery mechanism for Emotet. The ClamAV detection explicitly identifies it as 'Doc.Downloader.Emotet'. The VBA script appears to be heavily obfuscated but its structure suggests it is designed to download and execute a secondary payload, likely from a URL constructed from concatenated strings.

Heuristics 6

  • ClamAV: Doc.Downloader.Emotet-9769096-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-9769096-0
  • 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
7fe684c304685628252d7c0111d3e33f34436ae7810b3dde5f2aa07edc7bb621		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 8166 bytes

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