Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 0990a5ce9af5ef02…

MALICIOUS

Office (OLE) / .DOCX

170.2 KB Created: 2020-09-22 22:50:00 Authoring application: Microsoft Office Word
MD5: 653c01e6ca61b6890193b8bcfb9e3615 SHA-1: 0258bb7b592caccaa162d37c79d5ac24373c3f26 SHA-256: 0990a5ce9af5ef021c1ff33b8203d94b316af05b9cc835d92d94d50fd19c2bc2
242 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 contains VBA macros, including a Document_Open auto-execution macro, which is a common technique for Emotet. The ClamAV detection explicitly names Emotet and identifies it as a downloader. The macro uses CreateObject and GetObject calls, suggesting it attempts to manipulate the system or download additional content. While the specific download URL is obfuscated within the script, the overall behavior points to Emotet's typical payload delivery mechanism.

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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