Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 6df2d95c19b3ce31…

MALICIOUS

Office (OLE) / .DOCX

174.9 KB Created: 2020-10-30 13:48:00 Authoring application: Microsoft Office Word
MD5: aa7ada87b20a5d97054ddb66ec797375 SHA-1: ef582f0458359082c0db29588913ced703f72644 SHA-256: 6df2d95c19b3ce313cebc624934a89b12d1825460eede986255006aa3ad36e17
202 Risk Score

Malware Insights

Emotet · confidence 95%

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

The file is identified as malicious by ClamAV with the signature 'Doc.Malware.Emotet-9785300-0'. Static analysis detected VBA macros, specifically a 'Document_Open' macro that utilizes 'CreateObject', indicating an attempt to execute code upon opening. The VBA script itself is heavily obfuscated but contains string concatenations that appear to be assembling parts of the document body, suggesting a lure or obfuscation technique. The presence of these elements strongly suggests an Emotet variant, commonly delivered as a malicious attachment.

Heuristics 6

  • ClamAV: Doc.Malware.Emotet-9785300-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Malware.Emotet-9785300-0
  • 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
6ef446d7bbe59b96b37194ceef7dfc21ebc83ff1edf01838a31098c50a7e733f		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 17445 bytes

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