Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 6e27d4c3b0ee200a…

MALICIOUS

Office (OLE) / .DOCX

176.4 KB Created: 2020-10-02 15:03:00 Authoring application: Microsoft Office Word
MD5: b2436956c898e36b0c5983f27fef4cc9 SHA-1: fea85acd383c59c01c2038a642f8c05649e22d13 SHA-256: 6e27d4c3b0ee200a93a69503dc447755fb3b8fe439e3f2f16e4ef3e1b44f6e76
202 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1566.001 Spearphishing Attachment T1204.002 Malicious File

The file is identified as malicious by ClamAV with a specific Emotet downloader signature. The presence of a VBA macro, particularly one triggered by the Document_Open event and utilizing CreateObject, strongly suggests malicious intent. The obfuscated script likely attempts to download and execute a secondary payload, a common Emotet tactic. The document body's base64 encoded content is unreadable, but the macro's behavior is indicative of a downloader.

Heuristics 6

  • ClamAV: Doc.Downloader.EmotetRed02224-9938637-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.EmotetRed02224-9938637-0
  • 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
9c73b282cef1909acf6926cc6a46e0c4c3197855b1b22198afbc8de664dfe7ba		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 10626 bytes

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