Emotet — Office (OLE) / .DOC malware analysis

Static analysis result for SHA-256 6ffe1f1e0b366f49…

MALICIOUS

Office (OLE) / .DOC

124.0 KB Created: 2020-09-30 20:57:00 Authoring application: Microsoft Office Word
MD5: c29862e21d84fe390e7f0e520792c9c5 SHA-1: 366885196f14dc5d54769d76becee34c3547697c SHA-256: 6ffe1f1e0b366f49f5644ef9775e58ea1aa808bdfea4ced1aa367e2e44cded16
202 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1566.001 Spearphishing Attachment T1140 Deobfuscate/Decode Files or Information

The sample is a Microsoft Office document containing a VBA macro, specifically a Document_Open macro that uses CreateObject. This is a common pattern for Emotet malware. The macro appears to be obfuscated, but it constructs a string that likely represents a URL for downloading a second-stage payload. The ClamAV detection ID further supports the Emotet family attribution.

Heuristics 6

  • ClamAV: Doc.Malware.Emotet-9769866-1 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Malware.Emotet-9769866-1
  • 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
7cb9b8e5dcd6093fc36997f1ddba9977c3343a23efe112843f21e09b69e64d3a		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 10245 bytes

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