Emotet — Office (OLE) / .DOC malware analysis

Static analysis result for SHA-256 6fb3c2123beae517…

MALICIOUS

Office (OLE) / .DOC

168.7 KB Created: 2020-09-29 17:55:00 Authoring application: Microsoft Office Word
MD5: 354364b6053a37d2eb7b1690fdfaee1f SHA-1: 9fa1fee1be72aaf156368fcf04efadeb193239a0 SHA-256: 6fb3c2123beae517b7b5bd3e752527db971276fcb0d90931783a236e924d1d05
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 file is identified as malicious by ClamAV with a signature indicating Emotet. Static analysis reveals the presence of VBA macros, specifically a Document_Open macro that utilizes CreateObject, a common technique for executing malicious code. The VBA code is heavily obfuscated, but the presence of these indicators strongly suggests it's designed to download and execute a secondary payload, consistent with Emotet's behavior. The embedded URL, though benign, is noted as an indicator.

Heuristics 6

  • ClamAV: Doc.Malware.Emotet-9769269-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Malware.Emotet-9769269-0
  • 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
9169e243f9fab8c5ee562a5a9b6a75a0f13653d93df2471931b84cabc6486d2d		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 10330 bytes

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