Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 0891a48d8ddaea74…

MALICIOUS

Office (OLE) / .DOCX

178.5 KB Created: 2020-10-26 07:35:00 Authoring application: Microsoft Office Word
MD5: 9286c38fb95246904560bf28401fd5a6 SHA-1: 3f58a59ae337f20d3168195d8cc9c294d75ef63b SHA-256: 0891a48d8ddaea740e5cdc95c91c44a5585c580265292befb8281c49a41fa5f7
202 Risk Score

Malware Insights

Emotet · confidence 95%

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

The file is identified as malicious by ClamAV with the signature 'Doc.Downloader.Emotet-9784039-0'. Static analysis reveals the presence of VBA macros, specifically a 'Document_Open' macro that utilizes 'CreateObject' to execute code. The obfuscated document body and script content suggest an attempt to disguise the execution of a PowerShell command, which is a common tactic for Emotet to download and execute further stages.

Heuristics 6

  • ClamAV: Doc.Downloader.Emotet-9784039-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-9784039-0
  • 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
d0242cccf1fc69ef1bfc48b1645bc10ec37741bf93e2efd542678ac22956a298		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 15455 bytes

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