Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 786c646aec87e25c…

MALICIOUS

Office (OLE) / .DOCX

132.7 KB Created: 2020-09-30 05:26:00 Authoring application: Microsoft Office Word
MD5: 2f72b4280b61694f43343a5f1b24cd5b SHA-1: 75ff04253e49152bf46720cf44db62702ca6b9f2 SHA-256: 786c646aec87e25c98dfbac09f886f13f05a1e6690baf9974f99f1b37b6f3713
202 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1566.001 Spearphishing Attachment T1059 Command and Scripting Interpreter

The file contains VBA macros, including a Document_Open auto-execution macro, and uses CreateObject, indicating malicious intent. ClamAV detection confirms this as Emotet, a known downloader. The VBA script's obfuscated nature and use of CreateObject suggest it is designed to download and execute a second-stage payload.

Heuristics 6

  • ClamAV: Doc.Downloader.Emotet-9769541-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-9769541-0
  • 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
b2b495189d2eb2b89dce9719098105d933c1125fa9413aec5a7ff49e851b8844		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 10579 bytes

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