Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 783364f07072f525…

MALICIOUS

Office (OLE) / .DOCX

190.5 KB Created: 2020-09-21 14:08:00 Authoring application: Microsoft Office Word
MD5: 104b33f316f16731ab0a78c76b803a48 SHA-1: 83640b6c920fd1039bd652359f85596bfaf0adcb SHA-256: 783364f07072f525abca2b24cbe07e68ddcdc443a2e5b882c9d8d03929a23035
242 Risk Score

Malware Insights

Emotet · confidence 95%

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

The sample contains VBA macros, specifically a Document_Open macro, which is a common Emotet infection vector. The macro uses CreateObject and GetObject calls, indicative of malicious activity. ClamAV detection further confirms its malicious nature, identifying it as Emotet. The obfuscated VBA code within the 'macros.bas' script is designed to execute and likely download a secondary payload.

Heuristics 7

  • ClamAV: Doc.Malware.Emotet-9765432-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Malware.Emotet-9765432-0
  • Document_Open macro high OLE_VBA_DOCOPEN
    Document_Open macro
  • CreateObject call high OLE_VBA_CREATEOBJ
    CreateObject call
  • GetObject call high OLE_VBA_GETOBJ
    GetObject 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
5f8ddf3f75befd9059f3326eb9e354f14c2179c2257f61708817109610baf98e		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 19074 bytes

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