Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 5e9f5f706103a5ae…

MALICIOUS

Office (OLE) / .DOCX

182.8 KB Created: 2020-10-30 14:06:00 Authoring application: Microsoft Office Word
MD5: a849a522d538935885f15488dd34f68f SHA-1: 3f6d71342b0458527b7c4d06fa1ec7e581359e05 SHA-256: 5e9f5f706103a5ae53f44d35842e1a0bd916ec277238a9514754e50ceb1c7b8c
202 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The sample is identified as malicious by ClamAV with the signature 'Doc.Malware.Emotet-9785300-0', indicating a high likelihood of it being an Emotet variant. Static analysis reveals the presence of VBA macros, specifically a 'Document_Open' auto-execution macro that utilizes 'CreateObject'. This suggests the macro is designed to download and execute a secondary payload, a common tactic for Emotet. The obfuscated nature of the VBA code and the lack of clear URLs or commands within the provided snippets prevent further detailed analysis of the payload's specific actions.

Heuristics 6

  • ClamAV: Doc.Malware.Emotet-9785300-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Malware.Emotet-9785300-0
  • 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
953bcc7800f8e12231199058de4be56a41e5df3186000111c4b5440de64866f2		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 17395 bytes

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