Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 73b2c723dfaf2026…

MALICIOUS

Office (OLE) / .DOCX

170.3 KB Created: 2020-09-22 22:50:00 Authoring application: Microsoft Office Word
MD5: d38e0965885fce719f6a7214bf9fac08 SHA-1: ba0086b637cd2d8c3fec3660ddf4901cbebf0ebe SHA-256: 73b2c723dfaf202622c57e8b9bc4504b45f7617e3f644e4097c9489a459ee85c
242 Risk Score

Malware Insights

Emotet · confidence 95%

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

The sample is identified as malicious by ClamAV with the signature 'Doc.Downloader.Emotet-9765458-0', strongly suggesting the Emotet family. The presence of a 'Document_Open' VBA macro that uses 'CreateObject' and 'GetObject' indicates the macro is designed to execute automatically and likely download additional malicious content. The macro's obfuscated nature and the use of string concatenation to build potentially malicious commands are common Emotet tactics.

Heuristics 7

  • ClamAV: Doc.Downloader.Emotet-9765458-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-9765458-0
  • 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
30f2d5537902d59450c9d0d4b8e76203b657840da56dd9d07c3c9632425ddcf4		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 20571 bytes

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