Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 0a360a97df16c9d0…

MALICIOUS

Office (OLE) / .DOCX

169.6 KB Created: 2020-09-28 19:59:00 Authoring application: Microsoft Office Word
MD5: fda4c70717d5b2d84584775593191f3b SHA-1: 38a07fad73c44534978215664886b7b0715f282f SHA-256: 0a360a97df16c9d01ea98b8b59eb8a84b4aab0326bc08469f0bc35b53390ec6a
202 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1566.001 Spearphishing Attachment T1140 Deobfuscate/Decode Files or Information

The sample was detected as Emotet by ClamAV and contains VBA macros with a Document_Open auto-execution function. The script uses CreateObject and obfuscated string concatenation, indicating it likely downloads and executes a secondary payload. The embedded URL is benign, but the overall behavior is consistent with Emotet's typical infection chain.

Heuristics 6

  • ClamAV: Doc.Malware.Emotet-9768661-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Malware.Emotet-9768661-0
  • 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
387c5ef7909231ea8caee5f9881fb86538a4be7f74672ee227b824bdfa4a7d92		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 6701 bytes

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